| Weather / Illinois Weather Temperature |
Weather in Alton/St. Louis, Illinois
Current Conditions (Tuesday, December 31, 2024 at 05:15 America/Chicago time)
 | Temperature: 46°F (8°C) |
Forecast Overview
Tue Dec 31 
50°F 32°F 10°C -0°C Chance of rain in the morning.
detailsWed Jan 1 
37°F 28°F 3°C -2°C Mostly sunny, with a few passing clouds.
detailsThu Jan 2 
37°F 28°F 3°C -2°C Chance of snow after 3 pm.
detailsFri Jan 3 
32°F 18°F 0°C -8°C More sun than clouds.
detailsSat Jan 4 
23°F 16°F -5°C -9°C Considerable cloudiness.
detailsSun Jan 5 
27°F 18°F -3°C -8°C Overcast skies.
detailsMon Jan 6 
25°F 14°F -4°C -10°C Chance of snow at various times.
detailsTue Jan 7 
27°F 14°F -3°C -10°C Chance of light snow in the afternoon.
detailsWed Jan 8 19°F 5°F -7°C -15°C More sun than clouds.
detailsThu Jan 9 12°F 1°F -11°C -17°C More clouds than sun.
detailsFri Jan 10 12°F -0°F -11°C -18°C More clouds than sun.
detailsSat Jan 11 12°F -6°F -11°C -21°C Chance of light snow late at night.
detailsSun Jan 12 
34°F 12°F 1°C -11°C Chance of snow in the morning.
detailsMon Jan 13 
28°F 12°F -2°C -11°C Chance of light snow in the afternoon.
details
Detailed Forecast
| Tuesday, December 31 | sunrise: 07:18 sunset: 16:47 |
| Low around 32°F (-0°C), high around 50°F (10°C). Chance of rain all night and all morning (until 12 pm). Estimated precipitation: 0.31 in (7.9375 mm). Partly cloudy skies. Wind: 23 mph (37 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 |  | Chance of rain. Precipitation: 0.2 in (5.125 mm). | 48°F (9°C) | 15 mph (24 km/h) | 89% | 0.349% |
| 03:00 06:00 | | Chance of rain. Precipitation: 0.09 in (2.1875 mm). | 44°F (7°C) | 23 mph (37 km/h) | 91% | 0.351% |
| 06:00 09:00 | | Chance of light rain. Precipitation: 0.02 in (0.4375 mm). | 38°F (3°C) | 23 mph (37 km/h) | 95% | 0.343% |
| 09:00 12:00 | | Chance of light rain. Precipitation: 0 in (0.125 mm). | 39°F (4°C) | 20 mph (33 km/h) | 95% | 0.339% |
| 12:00 15:00 | | Overcast. Precipitation: 0 in (0.0625 mm). | 42°F (6°C) | 17 mph (27 km/h) | 71% | 0.335% |
| 15:00 18:00 | | Clear. | 38°F (3°C) | 15 mph (25 km/h) | 77% | 0.333% |
| 18:00 21:00 | | Clear. | 35°F (1°C) | 14 mph (22 km/h) | 75% | 0.331% |
| 21:00 00:00 | | Clear. | 32°F (-0°C) | 12 mph (19 km/h) | 77% | 0.33% |
| Wednesday, January 1 | sunrise: 07:18 sunset: 16:48 |
| Low around 29°F (-2°C), high around 37°F (3°C). Mostly sunny, with a few passing clouds. Wind: 14 mph (23 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Clear. | 30°F (-1°C) | 11 mph (18 km/h) | 80% | 0.329% |
| 03:00 06:00 | | Clear. | 29°F (-1°C) | 11 mph (18 km/h) | 80% | 0.329% |
| 06:00 09:00 | | Sunny. | 31°F (-1°C) | 14 mph (22 km/h) | 72% | 0.329% |
| 09:00 12:00 | | Sunny. | 36°F (2°C) | 14 mph (23 km/h) | 54% | 0.328% |
| 12:00 15:00 | | Sunny. | 37°F (3°C) | 13 mph (21 km/h) | 50% | 0.325% |
| 15:00 18:00 | | Clear. | 32°F (-0°C) | 7 mph (11 km/h) | 69% | 0.324% |
| 18:00 21:00 | | Clear. | 30°F (-1°C) | 6 mph (9 km/h) | 72% | 0.325% |
| 21:00 00:00 | | Overcast. | 29°F (-1°C) | 5 mph (8 km/h) | 72% | 0.325% |
| Thursday, January 2 | sunrise: 07:18 sunset: 16:48 |
| Low around 29°F (-2°C), high around 38°F (3°C). Chance of snow after 3 pm. Estimated precipitation: 0.11 in (2.6875 mm). Overcast skies. Wind: 6 mph (10 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Overcast. | 30°F (-1°C) | 4 mph (6 km/h) | 71% | 0.326% |
| 03:00 06:00 | | Overcast. | 30°F (-1°C) | 2 mph (3 km/h) | 69% | 0.328% |
| 06:00 09:00 | | Overcast. | 33°F (0°C) | 3 mph (5 km/h) | 61% | 0.328% |
| 09:00 12:00 | | Overcast. | 37°F (3°C) | 5 mph (8 km/h) | 53% | 0.328% |
| 12:00 15:00 | | Overcast. | 37°F (3°C) | 4 mph (7 km/h) | 62% | 0.326% |
| 15:00 18:00 | | Chance of light snow. Precipitation: 0.02 in (0.625 mm). | 32°F (0°C) | 3 mph (5 km/h) | 99% | 0.325% |
| 18:00 21:00 | | Chance of snow. Precipitation: 0.04 in (1.125 mm). | 33°F (1°C) | 4 mph (6 km/h) | 99% | 0.324% |
| 21:00 00:00 | | Chance of light snow. Precipitation: 0.04 in (0.9375 mm). | 33°F (0°C) | 6 mph (10 km/h) | 99% | 0.324% |
| Friday, January 3 | sunrise: 07:19 sunset: 16:49 |
| Low around 18°F (-8°C), high around 33°F (0°C). Estimated precipitation: 0.02 in (0.5625 mm). More sun than clouds. Wind: 18 mph (30 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Overcast. Precipitation: 0.02 in (0.5625 mm). | 26°F (-3°C) | 14 mph (23 km/h) | 91% | 0.323% |
| 03:00 06:00 | | Clear. | 20°F (-6°C) | 15 mph (24 km/h) | 80% | 0.322% |
| 06:00 09:00 | | Sunny. | 20°F (-7°C) | 16 mph (26 km/h) | 74% | 0.322% |
| 09:00 12:00 | | Overcast. | 23°F (-5°C) | 18 mph (30 km/h) | 63% | 0.322% |
| 12:00 15:00 | | Overcast. | 24°F (-4°C) | 16 mph (26 km/h) | 63% | 0.322% |
| 15:00 18:00 | | Clear. | 21°F (-6°C) | 14 mph (22 km/h) | 72% | 0.323% |
| 18:00 21:00 | | Clear. | 19°F (-7°C) | 13 mph (21 km/h) | 75% | 0.324% |
| 21:00 00:00 | | Clear. | 18°F (-8°C) | 13 mph (20 km/h) | 76% | 0.326% |
| Saturday, January 4 | sunrise: 07:19 sunset: 16:50 |
| Low around 15°F (-9°C), high around 23°F (-5°C). Considerable cloudiness. Wind: 13 mph (21 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Clear. | 17°F (-8°C) | 13 mph (20 km/h) | 77% | 0.329% |
| 03:00 06:00 | | Clear. | 16°F (-9°C) | 12 mph (19 km/h) | 76% | 0.331% |
| 06:00 09:00 | | Sunny. | 16°F (-9°C) | 13 mph (21 km/h) | 67% | 0.334% |
| 09:00 12:00 | | Overcast. | 21°F (-6°C) | 12 mph (20 km/h) | 56% | 0.336% |
| 12:00 15:00 | | Overcast. | 22°F (-5°C) | 12 mph (20 km/h) | 55% | 0.338% |
| 15:00 18:00 | | Considerable cloudiness. | 20°F (-7°C) | 8 mph (13 km/h) | 67% | 0.34% |
| 18:00 21:00 | | Overcast. | 19°F (-7°C) | 7 mph (11 km/h) | 73% | 0.342% |
| 21:00 00:00 | | Overcast. | 19°F (-7°C) | 6 mph (10 km/h) | 71% | 0.345% |
| Sunday, January 5 | sunrise: 07:19 sunset: 16:51 |
| Low around 18°F (-8°C), high around 27°F (-3°C). Overcast skies. Wind: 7 mph (11 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Overcast. | 18°F (-8°C) | 5 mph (8 km/h) | 73% | 0.347% |
| 03:00 06:00 | | Overcast. | 19°F (-7°C) | 5 mph (8 km/h) | 64% | 0.349% |
| 06:00 09:00 | | Overcast. | 21°F (-6°C) | 4 mph (6 km/h) | 53% | 0.351% |
| 09:00 12:00 | | Overcast. | 25°F (-4°C) | 5 mph (7 km/h) | 42% | 0.353% |
| 12:00 15:00 | | Overcast. | 27°F (-3°C) | 4 mph (6 km/h) | 41% | 0.354% |
| 15:00 18:00 | | Overcast. | 25°F (-4°C) | 4 mph (7 km/h) | 57% | 0.356% |
| 18:00 21:00 | | Overcast. | 25°F (-4°C) | 4 mph (7 km/h) | 59% | 0.357% |
| 21:00 00:00 | | Overcast. | 25°F (-4°C) | 7 mph (11 km/h) | 56% | 0.358% |
| Monday, January 6 | sunrise: 07:19 sunset: 16:52 |
| Low around 15°F (-10°C), high around 25°F (-4°C). Chance of snow all night and all morning (until 12 pm) and again late in the afternoon (between 3 pm and 6 pm). Estimated precipitation: 0.41 in (10.4375 mm). Mostly cloudy skies. Wind: 11 mph (17 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Chance of light snow. Precipitation: 0.02 in (0.4375 mm). | 24°F (-4°C) | 9 mph (14 km/h) | 58% | 0.359% |
| 03:00 06:00 | | Chance of snow. Precipitation: 0.07 in (1.6875 mm). | 24°F (-5°C) | 9 mph (15 km/h) | 65% | 0.36% |
| 06:00 09:00 | | Chance of snow. Precipitation: 0.14 in (3.5 mm). | 21°F (-6°C) | 6 mph (10 km/h) | 92% | 0.362% |
| 09:00 12:00 | | Chance of snow. Precipitation: 0.16 in (4 mm). | 21°F (-6°C) | 10 mph (16 km/h) | 90% | 0.363% |
| 12:00 15:00 | | Overcast. Precipitation: 0.02 in (0.625 mm). | 23°F (-5°C) | 11 mph (17 km/h) | 83% | 0.365% |
| 15:00 18:00 | | Chance of light snow. Precipitation: 0.01 in (0.1875 mm). | 21°F (-6°C) | 9 mph (15 km/h) | 95% | 0.366% |
| 18:00 21:00 | | Mostly cloudy. | 18°F (-8°C) | 8 mph (13 km/h) | 95% | 0.368% |
| 21:00 00:00 | | Partly cloudy. | 15°F (-10°C) | 6 mph (9 km/h) | 97% | 0.369% |
| Tuesday, January 7 | sunrise: 07:19 sunset: 16:53 |
| Low around 13°F (-10°C), high around 27°F (-3°C). Chance of light snow early in the afternoon (between 12 pm and 3 pm). Estimated precipitation: 0.01 in (0.25 mm). Partly cloudy skies. Wind: 11 mph (18 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Partly cloudy. | 15°F (-10°C) | 7 mph (11 km/h) | 97% | 0.371% |
| 03:00 06:00 | | Clear. | 15°F (-9°C) | 7 mph (11 km/h) | 96% | 0.372% |
| 06:00 09:00 | | Mostly cloudy. | 19°F (-7°C) | 7 mph (11 km/h) | 94% | 0.374% |
| 09:00 12:00 | | Overcast. | 26°F (-3°C) | 10 mph (16 km/h) | 87% | 0.375% |
| 12:00 15:00 | | Chance of light snow. Precipitation: 0.01 in (0.1875 mm). | 27°F (-3°C) | 10 mph (16 km/h) | 88% | 0.377% |
| 15:00 18:00 | | Mostly clear. | 23°F (-5°C) | 10 mph (15 km/h) | 93% | 0.378% |
| 18:00 21:00 | | Overcast. | 21°F (-6°C) | 11 mph (18 km/h) | 95% | 0.379% |
| 21:00 00:00 | | Clear. Precipitation: 0 in (0.0625 mm). | 15°F (-10°C) | 8 mph (13 km/h) | 96% | 0.381% |
| Wednesday, January 8 | sunrise: 07:19 sunset: 16:54 |
| Low around 5°F (-15°C), high around 20°F (-7°C). Estimated precipitation: 0 in (0.0625 mm). More sun than clouds. Wind: 11 mph (18 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Clear. | 10°F (-12°C) | 8 mph (12 km/h) | 92% | 0.382% |
| 03:00 06:00 | | Times of clear skies and clouds. | 9°F (-13°C) | 7 mph (12 km/h) | 96% | 0.383% |
| 06:00 09:00 | | Sunny. | 12°F (-11°C) | 10 mph (16 km/h) | 91% | 0.385% |
| 09:00 12:00 | | Overcast. | 18°F (-8°C) | 11 mph (18 km/h) | 77% | 0.386% |
| 12:00 15:00 | | Overcast. | 20°F (-7°C) | 11 mph (18 km/h) | 82% | 0.388% |
| 15:00 18:00 | | Mostly cloudy. Precipitation: 0 in (0.0625 mm). | 15°F (-9°C) | 9 mph (15 km/h) | 88% | 0.389% |
| 18:00 21:00 | | Clear. | 9°F (-13°C) | 8 mph (13 km/h) | 91% | 0.391% |
| 21:00 00:00 | | Clear. | 5°F (-15°C) | 8 mph (12 km/h) | 91% | 0.392% |
| Thursday, January 9 | sunrise: 07:19 sunset: 16:55 |
| Low around 1°F (-17°C), high around 12°F (-11°C). More clouds than sun. Wind: 13 mph (20 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Clear. | 4°F (-16°C) | 9 mph (15 km/h) | 91% | 0.394% |
| 03:00 06:00 | | Clear. | 3°F (-16°C) | 9 mph (15 km/h) | 90% | 0.396% |
| 06:00 09:00 | | Sunny. | 4°F (-15°C) | 11 mph (17 km/h) | 85% | 0.397% |
| 09:00 12:00 | | Overcast. | 10°F (-12°C) | 13 mph (20 km/h) | 74% | 0.399% |
| 12:00 15:00 | | Overcast. | 12°F (-11°C) | 12 mph (19 km/h) | 75% | 0.401% |
| 15:00 18:00 | | Overcast. | 9°F (-13°C) | 10 mph (17 km/h) | 85% | 0.402% |
| 18:00 21:00 | | Clear. | 5°F (-15°C) | 8 mph (13 km/h) | 89% | 0.404% |
| 21:00 00:00 | | Clear. | 2°F (-17°C) | 8 mph (13 km/h) | 92% | 0.405% |
| Friday, January 10 | sunrise: 07:19 sunset: 16:56 |
| Low around -0°F (-18°C), high around 13°F (-11°C). More clouds than sun. Wind: 9 mph (14 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Clear. | 1°F (-17°C) | 8 mph (12 km/h) | 92% | 0.407% |
| 03:00 06:00 | | Clear. | 0°F (-18°C) | 8 mph (12 km/h) | 93% | 0.409% |
| 06:00 09:00 | | Sunny. | 4°F (-16°C) | 8 mph (13 km/h) | 85% | 0.41% |
| 09:00 12:00 | | Overcast. | 10°F (-12°C) | 9 mph (14 km/h) | 73% | 0.412% |
| 12:00 15:00 | | Overcast. | 13°F (-11°C) | 8 mph (13 km/h) | 74% | 0.413% |
| 15:00 18:00 | | Overcast. | 5°F (-15°C) | 4 mph (7 km/h) | 94% | 0.415% |
| 18:00 21:00 | | Clear. | 4°F (-16°C) | 6 mph (9 km/h) | 93% | 0.416% |
| 21:00 00:00 | | Clear. | 1°F (-17°C) | 6 mph (9 km/h) | 94% | 0.417% |
| Saturday, January 11 | sunrise: 07:18 sunset: 16:57 |
| Low around -5°F (-21°C), high around 13°F (-11°C). Chance of light snow late at night (after 9 pm). Estimated precipitation: 0.01 in (0.3125 mm). Partly cloudy skies. Wind: 13 mph (21 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Clear. | -1°F (-19°C) | 6 mph (9 km/h) | 95% | 0.419% |
| 03:00 06:00 | | Clear. | -3°F (-20°C) | 5 mph (9 km/h) | 96% | 0.42% |
| 06:00 09:00 | | Sunny. | 1°F (-17°C) | 6 mph (10 km/h) | 92% | 0.422% |
| 09:00 12:00 | | Considerable cloudiness. | 10°F (-12°C) | 7 mph (12 km/h) | 80% | 0.423% |
| 12:00 15:00 | | A few passing clouds. | 13°F (-11°C) | 8 mph (13 km/h) | 78% | 0.424% |
| 15:00 18:00 | | Overcast. | 9°F (-13°C) | 10 mph (17 km/h) | 92% | 0.425% |
| 18:00 21:00 | | Overcast. | 12°F (-11°C) | 13 mph (20 km/h) | 93% | 0.426% |
| 21:00 00:00 | | Chance of light snow. Precipitation: 0.01 in (0.3125 mm). | 12°F (-11°C) | 13 mph (21 km/h) | 95% | 0.427% |
| Sunday, January 12 | sunrise: 07:18 sunset: 16:58 |
| Low around 13°F (-11°C), high around 33°F (1°C). Chance of snow all night and all morning (until 12 pm). Estimated precipitation: 0.35 in (8.9375 mm). Overcast skies. Wind: 15 mph (23 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Chance of snow. Precipitation: 0.06 in (1.5625 mm). | 15°F (-9°C) | 15 mph (23 km/h) | 94% | 0.428% |
| 03:00 06:00 | | Chance of snow. Precipitation: 0.1 in (2.5625 mm). | 18°F (-8°C) | 14 mph (23 km/h) | 95% | 0.428% |
| 06:00 09:00 | | Chance of snow. Precipitation: 0.12 in (3.125 mm). | 21°F (-6°C) | 12 mph (19 km/h) | 96% | 0.429% |
| 09:00 12:00 | | Chance of snow. Precipitation: 0.05 in (1.1875 mm). | 28°F (-2°C) | 11 mph (18 km/h) | 95% | 0.43% |
| 12:00 15:00 | | Overcast. Precipitation: 0.01 in (0.25 mm). | 32°F (0°C) | 11 mph (18 km/h) | 94% | 0.435% |
| 15:00 18:00 | | Mostly cloudy. | 33°F (1°C) | 11 mph (18 km/h) | 91% | 0.435% |
| 18:00 21:00 | | Overcast. | 26°F (-4°C) | 7 mph (12 km/h) | 97% | 0.435% |
| 21:00 00:00 | | Times of clear skies and clouds. Precipitation: 0.01 in (0.25 mm). | 23°F (-5°C) | 7 mph (11 km/h) | 97% | 0.436% |
| Monday, January 13 | sunrise: 07:18 sunset: 16:59 |
| Low around 13°F (-11°C), high around 28°F (-2°C). Chance of light snow early in the afternoon (between 12 pm and 3 pm). Estimated precipitation: 0.02 in (0.5 mm). Mostly cloudy skies. Wind: 17 mph (27 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Mostly cloudy. Precipitation: 0.01 in (0.25 mm). | 28°F (-2°C) | 13 mph (21 km/h) | 92% | 0.436% |
| 03:00 06:00 | | Considerable cloudiness. | 18°F (-8°C) | 14 mph (23 km/h) | 89% | 0.437% |
| 06:00 09:00 | | Mostly cloudy. | 16°F (-9°C) | 14 mph (23 km/h) | 90% | 0.437% |
| 09:00 12:00 | | Overcast. Precipitation: 0 in (0.0625 mm). | 17°F (-8°C) | 17 mph (27 km/h) | 86% | 0.437% |
| 12:00 15:00 | | Chance of light snow. Precipitation: 0 in (0.125 mm). | 19°F (-7°C) | 14 mph (23 km/h) | 90% | 0.438% |
| 15:00 18:00 | | Considerable cloudiness. | 17°F (-8°C) | 12 mph (19 km/h) | 92% | 0.438% |
| 18:00 21:00 | | Overcast. Precipitation: 0 in (0.0625 mm). | 17°F (-8°C) | 12 mph (19 km/h) | 94% | 0.438% |
| 21:00 00:00 | | Mostly cloudy. | 13°F (-11°C) | 9 mph (15 km/h) | 96% | 0.439% |
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 ST (since Sunday, 3 November 2024, 01:00 AM local time). During ST, the timezone abbreviation is CST and the offset to Universal Time (UTC, GMT or Zulu) is -6:00 hours.
Alton/St. Louis will exit standard time (entering DST) on Sunday, 9 March 2025, at 02:00 AM local time, when clocks will be turned forward 1 hour to Sunday, 9 March 2025, 03:00 AM local daylight time. During DST, the timezone abbreviation is CDT and the offset to UTC will be -5:00 hours.
Weather and Temperature in Illinois