| Weather / Illinois Weather Temperature |
Weather in Alton/St. Louis, Illinois
Current Conditions (Saturday, April 27, 2024 at 11:50 America/Chicago time)
 | Temperature: 72°F (22°C) |
Forecast Overview
Sun Apr 28 
75°F 63°F 24°C 17°C Chance of rain late at night.
detailsMon Apr 29 75°F 57°F 24°C 14°C Chance of heavy rain at various times of the day.
detailsTue Apr 30 
73°F 57°F 23°C 14°C Chance of light rain in the morning.
detailsWed May 1 
79°F 55°F 26°C 13°C Chance of rain late at night.
detailsThu May 2 82°F 63°F 28°C 17°C Overcast skies.
detailsFri May 3 73°F 61°F 23°C 16°C Chance of rain most of the day.
detailsSat May 4 
64°F 48°F 18°C 9°C Times of sun and clouds.
detailsSun May 5 73°F 46°F 23°C 8°C More sun than clouds.
detailsMon May 6 79°F 63°F 26°C 17°C Overcast skies.
detailsTue May 7 79°F 64°F 26°C 18°C Chance of rain after 1 pm.
detailsWed May 8 
68°F 50°F 20°C 10°C Chance of light rain in the afternoon.
detailsThu May 9 
55°F 46°F 13°C 8°C Chance of light rain in the morning.
detailsFri May 10 64°F 46°F 18°C 8°C Overcast skies.
detailsSat May 11 59°F 52°F 15°C 11°C Chance of rain most of the day.
details
Detailed Forecast
| Sunday, April 28 | sunrise: 06:06 sunset: 19:49 |
| Low around 62°F (17°C), high around 75°F (24°C). Chance of rain late at night (after 10 pm). The precipitation may fall as scattered showers of varying intensity. Estimated precipitation: 0.39 in (10 mm). Mostly cloudy skies. Wind: 19 mph (31 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 |  | Overcast. Precipitation: 0.06 in (1.5 mm). | 63°F (17°C) | 13 mph (21 km/h) | 95% | 0.33% |
| 04:00 07:00 | | Overcast. Precipitation: 0 in (0.0625 mm). | 63°F (17°C) | 17 mph (27 km/h) | 89% | 0.321% |
| 07:00 10:00 | | Overcast. | 71°F (21°C) | 19 mph (31 km/h) | 81% | 0.314% |
| 10:00 13:00 | | A few passing clouds. Precipitation: 0 in (0.0625 mm). | 73°F (23°C) | 17 mph (27 km/h) | 77% | 0.31% |
| 13:00 16:00 | | Mostly cloudy. Precipitation: 0.01 in (0.1875 mm). | 71°F (22°C) | 11 mph (18 km/h) | 80% | 0.307% |
| 16:00 19:00 | | Overcast. Precipitation: 0.08 in (2.125 mm). | 71°F (22°C) | 16 mph (25 km/h) | 83% | 0.313% |
| 19:00 22:00 | | Overcast. Precipitation: 0.19 in (4.9375 mm). | 68°F (20°C) | 15 mph (23 km/h) | 89% | 0.33% |
| 22:00 01:00 | | Chance of scattered rain showers. Precipitation: 0.04 in (1.125 mm). | 65°F (19°C) | 16 mph (26 km/h) | 91% | 0.324% |
| Monday, April 29 | sunrise: 06:05 sunset: 19:50 |
| Low around 58°F (14°C), high around 76°F (24°C). Chance of heavy rain in the morning and early afternoon (between 10 am and 4 pm) and again in the evening (between 7 pm and 10 pm). The precipitation may fall as scattered showers of varying intensity. Estimated precipitation: 0.78 in (19.875 mm). Overcast skies. Wind: 19 mph (31 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Overcast. Precipitation: 0 in (0.0625 mm). | 65°F (18°C) | 18 mph (30 km/h) | 91% | 0.318% |
| 04:00 07:00 | | Overcast. Precipitation: 0 in (0.125 mm). | 67°F (19°C) | 16 mph (26 km/h) | 86% | 0.315% |
| 07:00 10:00 | | Overcast. | 70°F (21°C) | 17 mph (28 km/h) | 76% | 0.312% |
| 10:00 13:00 | | Chance of light rain. Precipitation: 0 in (0.0625 mm). | 76°F (24°C) | 19 mph (31 km/h) | 65% | 0.306% |
| 13:00 16:00 | | Chance of scattered rain showers. Precipitation: 0.05 in (1.25 mm). | 73°F (23°C) | 15 mph (25 km/h) | 74% | 0.309% |
| 16:00 19:00 | | Overcast. Precipitation: 0.04 in (0.9375 mm). | 71°F (22°C) | 14 mph (22 km/h) | 77% | 0.309% |
| 19:00 22:00 | | Chance of scattered rain showers. Precipitation: 0.08 in (2.125 mm). | 66°F (19°C) | 15 mph (24 km/h) | 89% | 0.32% |
| 22:00 01:00 | | Overcast. Precipitation: 0.6 in (15.3125 mm). | 58°F (15°C) | 12 mph (20 km/h) | 95% | 0.352% |
| Tuesday, April 30 | sunrise: 06:03 sunset: 19:51 |
| Low around 57°F (14°C), high around 73°F (23°C). Chance of light rain early in the morning (between 7 am and 10 am). Estimated precipitation: 0 in (0.125 mm). Considerable cloudiness. Wind: 15 mph (23 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Clear. | 60°F (16°C) | 12 mph (19 km/h) | 94% | 0.338% |
| 04:00 07:00 | | Overcast. | 60°F (16°C) | 13 mph (20 km/h) | 96% | 0.333% |
| 07:00 10:00 | | Chance of light rain. Precipitation: 0 in (0.0625 mm). | 66°F (19°C) | 15 mph (23 km/h) | 83% | 0.328% |
| 10:00 13:00 | | Mostly cloudy. Precipitation: 0 in (0.0625 mm). | 65°F (18°C) | 12 mph (20 km/h) | 82% | 0.325% |
| 13:00 16:00 | | Overcast. | 71°F (22°C) | 14 mph (22 km/h) | 56% | 0.318% |
| 16:00 19:00 | | Mostly cloudy. | 65°F (18°C) | 8 mph (13 km/h) | 77% | 0.316% |
| 19:00 22:00 | | Clear. | 59°F (15°C) | 3 mph (4 km/h) | 85% | 0.316% |
| 22:00 01:00 | | Clear. | 57°F (14°C) | 3 mph (4 km/h) | 88% | 0.315% |
| Wednesday, May 1 | sunrise: 06:02 sunset: 19:52 |
| Low around 55°F (13°C), high around 79°F (26°C). Chance of rain late at night (after 10 pm). The precipitation may fall as scattered showers of varying intensity. Estimated precipitation: 0.24 in (6.0625 mm). More clouds than sun. Wind: 15 mph (24 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Clear. | 56°F (13°C) | 1 mph (2 km/h) | 88% | 0.314% |
| 04:00 07:00 | | Sunny. | 56°F (14°C) | 6 mph (10 km/h) | 89% | 0.314% |
| 07:00 10:00 | | Sunny. | 67°F (20°C) | 11 mph (18 km/h) | 72% | 0.311% |
| 10:00 13:00 | | Times of sun and clouds. | 75°F (24°C) | 12 mph (19 km/h) | 65% | 0.305% |
| 13:00 16:00 | | Mostly cloudy. Precipitation: 0.03 in (0.6875 mm). | 78°F (26°C) | 13 mph (20 km/h) | 61% | 0.305% |
| 16:00 19:00 | | Overcast. Precipitation: 0.02 in (0.625 mm). | 70°F (21°C) | 15 mph (24 km/h) | 82% | 0.306% |
| 19:00 22:00 | | Overcast. Precipitation: 0.05 in (1.1875 mm). | 66°F (19°C) | 11 mph (18 km/h) | 88% | 0.312% |
| 22:00 01:00 | | Chance of scattered rain showers. Precipitation: 0.14 in (3.5625 mm). | 65°F (18°C) | 8 mph (13 km/h) | 93% | 0.337% |
| Thursday, May 2 | sunrise: 06:01 sunset: 19:53 |
| Low around 63°F (17°C), high around 82°F (28°C). Estimated precipitation: 0.09 in (2.1875 mm). Overcast skies. Wind: 12 mph (19 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Overcast. Precipitation: 0.03 in (0.75 mm). | 64°F (18°C) | 7 mph (12 km/h) | 95% | 0.325% |
| 04:00 07:00 | | Overcast. | 64°F (18°C) | 3 mph (5 km/h) | 95% | 0.319% |
| 07:00 10:00 | | Overcast. | 73°F (23°C) | 5 mph (8 km/h) | 79% | 0.315% |
| 10:00 13:00 | | Overcast. | 80°F (26°C) | 10 mph (15 km/h) | 64% | 0.31% |
| 13:00 16:00 | | Overcast. Precipitation: 0 in (0.0625 mm). | 82°F (28°C) | 11 mph (18 km/h) | 61% | 0.305% |
| 16:00 19:00 | | Overcast. Precipitation: 0.03 in (0.6875 mm). | 74°F (23°C) | 12 mph (19 km/h) | 80% | 0.307% |
| 19:00 22:00 | | Clear. Precipitation: 0.03 in (0.6875 mm). | 68°F (20°C) | 11 mph (17 km/h) | 93% | 0.31% |
| 22:00 01:00 | | Overcast. | 63°F (17°C) | 10 mph (17 km/h) | 90% | 0.309% |
| Friday, May 3 | sunrise: 06:00 sunset: 19:54 |
| Low around 61°F (16°C), high around 74°F (23°C). Chance of rain during the morning (between 7 am and 1 pm) and again during late afternoon and evening (between 4 pm and 10 pm). The precipitation may fall as scattered showers of varying intensity. Estimated precipitation: 0.19 in (4.75 mm). Mostly cloudy skies. Wind: 18 mph (28 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Overcast. | 62°F (17°C) | 10 mph (16 km/h) | 95% | 0.308% |
| 04:00 07:00 | | Overcast. | 63°F (17°C) | 14 mph (22 km/h) | 94% | 0.307% |
| 07:00 10:00 | | Chance of scattered rain showers. Precipitation: 0.1 in (2.4375 mm). | 65°F (18°C) | 14 mph (22 km/h) | 96% | 0.322% |
| 10:00 13:00 | | Chance of light rain. Precipitation: 0.01 in (0.25 mm). | 72°F (22°C) | 18 mph (28 km/h) | 82% | 0.314% |
| 13:00 16:00 | | Overcast. Precipitation: 0 in (0.125 mm). | 71°F (22°C) | 15 mph (24 km/h) | 86% | 0.31% |
| 16:00 19:00 | | Chance of light rain. Precipitation: 0.01 in (0.25 mm). | 74°F (23°C) | 12 mph (19 km/h) | 82% | 0.308% |
| 19:00 22:00 | | Chance of light rain. Precipitation: 0.03 in (0.75 mm). | 71°F (21°C) | 13 mph (21 km/h) | 91% | 0.31% |
| 22:00 01:00 | | Overcast. Precipitation: 0.04 in (0.9375 mm). | 65°F (18°C) | 16 mph (25 km/h) | 90% | 0.313% |
| Saturday, May 4 | sunrise: 05:59 sunset: 19:55 |
| Low around 47°F (9°C), high around 65°F (18°C). Times of sun and clouds. Wind: 18 mph (29 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Overcast. | 53°F (12°C) | 18 mph (29 km/h) | 88% | 0.31% |
| 04:00 07:00 | | Overcast. | 47°F (9°C) | 17 mph (27 km/h) | 83% | 0.309% |
| 07:00 10:00 | | Overcast. | 52°F (11°C) | 16 mph (25 km/h) | 69% | 0.306% |
| 10:00 13:00 | | Sunny. | 60°F (16°C) | 14 mph (23 km/h) | 59% | 0.301% |
| 13:00 16:00 | | Sunny. | 63°F (17°C) | 14 mph (23 km/h) | 54% | 0.297% |
| 16:00 19:00 | | Sunny. | 59°F (15°C) | 7 mph (10 km/h) | 69% | 0.296% |
| 19:00 22:00 | | Clear. | 52°F (11°C) | 4 mph (6 km/h) | 78% | 0.298% |
| 22:00 01:00 | | Clear. | 50°F (10°C) | 2 mph (3 km/h) | 79% | 0.298% |
| Sunday, May 5 | sunrise: 05:57 sunset: 19:56 |
| Low around 47°F (8°C), high around 74°F (23°C). More sun than clouds. Wind: 13 mph (20 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Clear. | 48°F (9°C) | 2 mph (4 km/h) | 80% | 0.299% |
| 04:00 07:00 | | Sunny. | 49°F (9°C) | 6 mph (9 km/h) | 84% | 0.299% |
| 07:00 10:00 | | Sunny. | 60°F (16°C) | 10 mph (16 km/h) | 66% | 0.297% |
| 10:00 13:00 | | Sunny. | 68°F (20°C) | 12 mph (20 km/h) | 56% | 0.292% |
| 13:00 16:00 | | A few passing clouds. | 73°F (23°C) | 13 mph (20 km/h) | 51% | 0.288% |
| 16:00 19:00 | | Overcast. | 66°F (19°C) | 6 mph (10 km/h) | 79% | 0.288% |
| 19:00 22:00 | | Overcast. | 64°F (18°C) | 8 mph (12 km/h) | 83% | 0.29% |
| 22:00 01:00 | | Mostly cloudy. | 65°F (18°C) | 7 mph (11 km/h) | 80% | 0.29% |
| Monday, May 6 | sunrise: 05:56 sunset: 19:57 |
| Low around 62°F (17°C), high around 79°F (26°C). Estimated precipitation: 0.17 in (4.25 mm). Overcast skies. Wind: 12 mph (19 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Overcast. | 64°F (18°C) | 6 mph (10 km/h) | 85% | 0.291% |
| 04:00 07:00 | | Overcast. | 64°F (18°C) | 4 mph (6 km/h) | 91% | 0.291% |
| 07:00 10:00 | | A few passing clouds. | 73°F (23°C) | 4 mph (7 km/h) | 76% | 0.29% |
| 10:00 13:00 | | Overcast. Precipitation: 0 in (0.125 mm). | 78°F (26°C) | 10 mph (16 km/h) | 69% | 0.287% |
| 13:00 16:00 | | Overcast. Precipitation: 0.08 in (2 mm). | 77°F (25°C) | 9 mph (14 km/h) | 75% | 0.292% |
| 16:00 19:00 | | Overcast. Precipitation: 0.03 in (0.75 mm). | 74°F (23°C) | 11 mph (18 km/h) | 83% | 0.291% |
| 19:00 22:00 | | Overcast. Precipitation: 0.03 in (0.8125 mm). | 70°F (21°C) | 12 mph (19 km/h) | 91% | 0.293% |
| 22:00 01:00 | | Overcast. Precipitation: 0.02 in (0.5625 mm). | 68°F (20°C) | 10 mph (17 km/h) | 96% | 0.292% |
| Tuesday, May 7 | sunrise: 05:55 sunset: 19:58 |
| Low around 65°F (18°C), high around 79°F (26°C). Chance of rain during the afternoon and evening (between 1 pm and 10 pm). The precipitation may fall as scattered showers of varying intensity. Estimated precipitation: 0.66 in (16.8125 mm). Considerable cloudiness. Wind: 17 mph (28 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Overcast. Precipitation: 0.1 in (2.625 mm). | 66°F (19°C) | 9 mph (15 km/h) | 98% | 0.324% |
| 04:00 07:00 | | Overcast. Precipitation: 0.18 in (4.625 mm). | 69°F (20°C) | 14 mph (22 km/h) | 89% | 0.33% |
| 07:00 10:00 | | Overcast. | 69°F (20°C) | 14 mph (23 km/h) | 87% | 0.317% |
| 10:00 13:00 | | Overcast. Precipitation: 0.02 in (0.5625 mm). | 68°F (20°C) | 13 mph (21 km/h) | 90% | 0.314% |
| 13:00 16:00 | | Chance of light rain. Precipitation: 0.01 in (0.1875 mm). | 78°F (26°C) | 17 mph (28 km/h) | 70% | 0.308% |
| 16:00 19:00 | | Chance of scattered rain showers. Precipitation: 0.11 in (2.75 mm). | 74°F (23°C) | 17 mph (28 km/h) | 80% | 0.32% |
| 19:00 22:00 | | Chance of scattered rain showers. Precipitation: 0.16 in (4.1875 mm). | 69°F (21°C) | 14 mph (22 km/h) | 90% | 0.334% |
| 22:00 01:00 | | Considerable cloudiness. Precipitation: 0.07 in (1.875 mm). | 67°F (19°C) | 12 mph (20 km/h) | 94% | 0.328% |
| Wednesday, May 8 | sunrise: 05:54 sunset: 19:59 |
| Low around 51°F (10°C), high around 67°F (20°C). Chance of light rain early in the afternoon (between 1 pm and 4 pm). Estimated precipitation: 0 in (0.0625 mm). Mostly cloudy skies. Wind: 21 mph (33 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Clear. | 66°F (19°C) | 14 mph (23 km/h) | 92% | 0.322% |
| 04:00 07:00 | | Partly cloudy. | 55°F (13°C) | 14 mph (23 km/h) | 85% | 0.318% |
| 07:00 10:00 | | Mostly cloudy. | 57°F (14°C) | 21 mph (33 km/h) | 71% | 0.314% |
| 10:00 13:00 | | Overcast. | 60°F (15°C) | 20 mph (32 km/h) | 71% | 0.31% |
| 13:00 16:00 | | Chance of light rain. Precipitation: 0 in (0.0625 mm). | 59°F (15°C) | 20 mph (33 km/h) | 73% | 0.306% |
| 16:00 19:00 | | Overcast. | 55°F (13°C) | 20 mph (32 km/h) | 76% | 0.305% |
| 19:00 22:00 | | Overcast. | 53°F (12°C) | 18 mph (29 km/h) | 75% | 0.305% |
| 22:00 01:00 | | Overcast. | 51°F (10°C) | 18 mph (28 km/h) | 76% | 0.304% |
| Thursday, May 9 | sunrise: 05:53 sunset: 20:00 |
| Low around 46°F (8°C), high around 55°F (13°C). Chance of light rain early in the morning (between 7 am and 10 am). Estimated precipitation: 0 in (0.125 mm). Overcast skies. Wind: 17 mph (27 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Overcast. | 49°F (10°C) | 16 mph (26 km/h) | 79% | 0.303% |
| 04:00 07:00 | | Overcast. | 48°F (9°C) | 15 mph (24 km/h) | 81% | 0.303% |
| 07:00 10:00 | | Chance of light rain. Precipitation: 0 in (0.0625 mm). | 51°F (10°C) | 17 mph (27 km/h) | 77% | 0.302% |
| 10:00 13:00 | | Overcast. Precipitation: 0 in (0.0625 mm). | 53°F (11°C) | 14 mph (23 km/h) | 73% | 0.301% |
| 13:00 16:00 | | Overcast. | 54°F (12°C) | 10 mph (17 km/h) | 72% | 0.299% |
| 16:00 19:00 | | Overcast. | 54°F (12°C) | 7 mph (12 km/h) | 77% | 0.299% |
| 19:00 22:00 | | Clear. | 49°F (9°C) | 3 mph (5 km/h) | 87% | 0.299% |
| 22:00 01:00 | | Overcast. | 47°F (8°C) | 2 mph (4 km/h) | 88% | 0.3% |
| Friday, May 10 | sunrise: 05:52 sunset: 20:01 |
| Low around 46°F (8°C), high around 65°F (18°C). Overcast skies. Wind: 11 mph (17 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Overcast. | 46°F (8°C) | 2 mph (4 km/h) | 89% | 0.3% |
| 04:00 07:00 | | Overcast. | 48°F (9°C) | 4 mph (7 km/h) | 89% | 0.3% |
| 07:00 10:00 | | Overcast. | 57°F (14°C) | 6 mph (9 km/h) | 69% | 0.298% |
| 10:00 13:00 | | Overcast. | 62°F (17°C) | 10 mph (16 km/h) | 61% | 0.294% |
| 13:00 16:00 | | Overcast. | 65°F (18°C) | 11 mph (17 km/h) | 59% | 0.291% |
| 16:00 19:00 | | Overcast. | 60°F (16°C) | 9 mph (15 km/h) | 73% | 0.29% |
| 19:00 22:00 | | Overcast. | 54°F (12°C) | 9 mph (15 km/h) | 74% | 0.291% |
| 22:00 01:00 | | Overcast. | 53°F (12°C) | 10 mph (16 km/h) | 80% | 0.292% |
| Saturday, May 11 | sunrise: 05:51 sunset: 20:02 |
| Low around 52°F (11°C), high around 59°F (15°C). Chance of rain most of the day (after 10 am). Estimated precipitation: 0.85 in (21.5625 mm). Overcast skies. Wind: 18 mph (29 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Overcast. | 54°F (12°C) | 10 mph (17 km/h) | 80% | 0.292% |
| 04:00 07:00 | | Overcast. | 54°F (12°C) | 13 mph (21 km/h) | 84% | 0.292% |
| 07:00 10:00 | | Overcast. Precipitation: 0 in (0.0625 mm). | 54°F (12°C) | 15 mph (24 km/h) | 80% | 0.292% |
| 10:00 13:00 | | Chance of rain. Precipitation: 0.13 in (3.25 mm). | 52°F (11°C) | 15 mph (24 km/h) | 95% | 0.312% |
| 13:00 16:00 | | Chance of light rain. Precipitation: 0.04 in (0.9375 mm). | 53°F (12°C) | 18 mph (28 km/h) | 94% | 0.31% |
| 16:00 19:00 | | Chance of rain. Precipitation: 0.26 in (6.625 mm). | 54°F (12°C) | 18 mph (29 km/h) | 97% | 0.339% |
| 19:00 22:00 | | Chance of rain. Precipitation: 0.15 in (3.6875 mm). | 56°F (13°C) | 18 mph (28 km/h) | 98% | 0.346% |
| 22:00 01:00 | | Chance of rain. Precipitation: 0.28 in (7 mm). | 58°F (15°C) | 17 mph (28 km/h) | 98% | 0.357% |
Climate Chart
» Alton/St. Louis Climate Chart
Places with a similar climate: Flora (IL), Cahokia / St. Louis (IL), Fairfield (IL), Belleville, Scott (IL), Salem (IL), St. Charles County (MO), Knob Noster City, Johnson County (MO), Farmington (MO), Columbia (MO), Mount Vernon (IL), Robinson (IL), Huntingburg (IN), Rolla / Vichy (MO), Centralia (IL), Warrensburg City, Johnson County (MO), Sedalia (MO), Mount Carmel (IL), Fort Leonard Wood, Pulaski County (MO), Carmi (IL), Effingham (IL), Sparta (IL), Lawrenceville (IL), Litchfield (IL), Taylorville (IL).
Temperature variation graph for the last seven days
Humidity Variation Graph
Wind speed
Weather Station: Alton/St. Louis, St. Louis Regional Airport (latitude 38-54N, longitude 090-03W)
Local Time:
Alton/St. Louis is in the "America/Chicago" timezone.
The "America/Chicago" timezone uses a Standard Time (ST) / Daylight Saving Time (DST) alternation scheme, and it currently is in DST (since Sunday, 10 March 2024, 03:00 AM local time). During DST, the timezone abbreviation is CDT and the offset to Universal Time (UTC, GMT or Zulu) is -5:00 hours.
Alton/St. Louis will exit DST (returning to standard time) on Sunday, 3 November 2024, at 02:00 AM local time, when clocks will be turned backward 1 hour to Sunday, 3 November 2024, 01:00 AM local standard time. During ST, the timezone abbreviation is CST and the offset to UTC will be -6:00 hours.
Weather and Temperature in Illinois