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Weather in Alton/St. Louis, Illinois

Current Conditions (Tuesday, January 7, 2025 at 01:55 America/Chicago time)

Temperature: 23°F (-5°C)
Skies: overcast
Humidity: 77%
Wind: From the NW at 3 mph (5 km/h)
Pressure: 1030
Dew Point: 18°F (-8°C)

Forecast Overview

Tue Jan 7
23°F 7°F
-5°C -14°C
Partly cloudy skies.

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Wed Jan 8
21°F 3°F
-6°C -16°C
Mostly sunny.

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Thu Jan 9
27°F -0°F
-3°C -18°C
More sun than clouds.

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Fri Jan 10
32°F 18°F
-0°C -8°C
Chance of snow until 6 pm.

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Sat Jan 11
27°F 7°F
-3°C -14°C
Times of sun and clouds.

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Sun Jan 12
34°F 12°F
1°C -11°C
Chance of snow most of the day.

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Mon Jan 13
28°F 9°F
-2°C -13°C
Chance of light snow in the afternoon.

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Tue Jan 14
19°F 5°F
-7°C -15°C
Sunny skies.

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Wed Jan 15
30°F 1°F
-1°C -17°C
Times of sun and clouds.

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Detailed Forecast

Tuesday, January 7

sunrise: 07:19 sunset: 16:53

Low around 7°F (-14°C), high around 23°F (-5°C).
Partly cloudy skies.
Wind: 7 mph (12 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
00:00 03:00		Clear.	9°F (-13°C)	6 mph (10 km/h)	94%	0.324%
03:00 06:00		Overcast.	7°F (-14°C)	6 mph (9 km/h)	95%	0.325%
06:00 09:00		Overcast.	14°F (-10°C)	6 mph (9 km/h)	87%	0.326%
09:00 12:00		Overcast.	22°F (-6°C)	7 mph (10 km/h)	79%	0.328%
12:00 15:00		Sunny.	23°F (-5°C)	7 mph (12 km/h)	82%	0.329%
15:00 18:00		Clear.	11°F (-11°C)	5 mph (8 km/h)	94%	0.331%
18:00 21:00		Mostly clear, with a few passing clouds.	9°F (-13°C)	6 mph (10 km/h)	95%	0.332%
21:00 00:00		A few passing clouds.	7°F (-14°C)	6 mph (9 km/h)	97%	0.334%

Wednesday, January 8

sunrise: 07:19 sunset: 16:54

Low around 2°F (-16°C), high around 22°F (-6°C).
Mostly sunny.
Wind: 9 mph (14 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
00:00 03:00		A few passing clouds.	4°F (-16°C)	6 mph (9 km/h)	97%	0.335%
03:00 06:00		A few passing clouds.	3°F (-16°C)	5 mph (9 km/h)	97%	0.337%
06:00 09:00		Sunny.	11°F (-12°C)	7 mph (12 km/h)	85%	0.339%
09:00 12:00		Sunny.	20°F (-7°C)	9 mph (14 km/h)	75%	0.34%
12:00 15:00		Sunny.	22°F (-6°C)	8 mph (13 km/h)	78%	0.342%
15:00 18:00		Clear.	9°F (-13°C)	5 mph (7 km/h)	94%	0.343%
18:00 21:00		Mostly clear, with a few passing clouds.	6°F (-15°C)	4 mph (7 km/h)	95%	0.345%
21:00 00:00		Times of clear skies and clouds.	2°F (-16°C)	4 mph (7 km/h)	98%	0.347%

Thursday, January 9

sunrise: 07:19 sunset: 16:55

Low around 0°F (-18°C), high around 26°F (-3°C).
More sun than clouds.
Wind: 10 mph (16 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
00:00 03:00		Partly cloudy.	1°F (-17°C)	3 mph (6 km/h)	98%	0.349%
03:00 06:00		Partly cloudy.	1°F (-17°C)	3 mph (5 km/h)	99%	0.35%
06:00 09:00		Sunny.	11°F (-12°C)	7 mph (11 km/h)	93%	0.352%
09:00 12:00		Sunny.	23°F (-5°C)	10 mph (16 km/h)	84%	0.354%
12:00 15:00		Considerable cloudiness.	26°F (-3°C)	8 mph (13 km/h)	85%	0.356%
15:00 18:00		Clear.	22°F (-6°C)	7 mph (11 km/h)	94%	0.357%
18:00 21:00		Overcast.	20°F (-6°C)	8 mph (14 km/h)	93%	0.359%
21:00 00:00		Overcast.	24°F (-5°C)	7 mph (12 km/h)	91%	0.36%

Friday, January 10

sunrise: 07:19 sunset: 16:56

Low around 17°F (-8°C), high around 32°F (-0°C).
Chance of snow until 6 pm. Estimated precipitation: 0.34 in (8.6875 mm).
Mostly cloudy skies.
Wind: 10 mph (16 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
00:00 03:00		Chance of light snow. Precipitation: 0.02 in (0.5625 mm).	25°F (-4°C)	5 mph (9 km/h)	97%	0.362%
03:00 06:00		Overcast. Precipitation: 0.03 in (0.875 mm).	26°F (-3°C)	7 mph (11 km/h)	97%	0.363%
06:00 09:00		Chance of snow. Precipitation: 0.05 in (1.25 mm).	28°F (-2°C)	7 mph (11 km/h)	98%	0.364%
09:00 12:00		Chance of snow. Precipitation: 0.06 in (1.5 mm).	31°F (-1°C)	9 mph (14 km/h)	98%	0.365%
12:00 15:00		Chance of snow. Precipitation: 0.09 in (2.3125 mm).	32°F (-0°C)	4 mph (6 km/h)	99%	0.369%
15:00 18:00		Chance of snow. Precipitation: 0.07 in (1.75 mm).	29°F (-2°C)	9 mph (15 km/h)	97%	0.37%
18:00 21:00		Overcast. Precipitation: 0.01 in (0.375 mm).	26°F (-3°C)	10 mph (16 km/h)	94%	0.371%
21:00 00:00		Clear. Precipitation: 0 in (0.0625 mm).	17°F (-8°C)	8 mph (13 km/h)	97%	0.372%

Saturday, January 11

sunrise: 07:18 sunset: 16:57

Low around 7°F (-14°C), high around 26°F (-3°C).
Times of sun and clouds.
Wind: 10 mph (16 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
00:00 03:00		Clear.	13°F (-11°C)	8 mph (13 km/h)	95%	0.373%
03:00 06:00		Clear.	9°F (-13°C)	8 mph (13 km/h)	92%	0.374%
06:00 09:00		Sunny.	13°F (-11°C)	7 mph (12 km/h)	92%	0.375%
09:00 12:00		Considerable cloudiness.	23°F (-5°C)	10 mph (16 km/h)	84%	0.376%
12:00 15:00		More sun than clouds.	26°F (-3°C)	8 mph (13 km/h)	86%	0.377%
15:00 18:00		Clear.	17°F (-9°C)	3 mph (5 km/h)	95%	0.378%
18:00 21:00		Overcast.	13°F (-11°C)	3 mph (5 km/h)	97%	0.379%
21:00 00:00		Mostly cloudy.	16°F (-9°C)	4 mph (6 km/h)	97%	0.38%

Sunday, January 12

sunrise: 07:18 sunset: 16:58

Low around 12°F (-11°C), high around 34°F (1°C).
Chance of snow during the morning (between 6 am and 12 pm) and again during late afternoon and evening (between 3 pm and 9 pm). Estimated precipitation: 0.11 in (2.8125 mm).
Overcast skies.
Wind: 13 mph (21 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
00:00 03:00		Partly cloudy.	15°F (-9°C)	6 mph (9 km/h)	97%	0.381%
03:00 06:00		Overcast.	17°F (-8°C)	6 mph (10 km/h)	96%	0.382%
06:00 09:00		Chance of light snow. Precipitation: 0.01 in (0.375 mm).	29°F (-2°C)	9 mph (15 km/h)	98%	0.383%
09:00 12:00		Chance of snow. Precipitation: 0.06 in (1.4375 mm).	32°F (-0°C)	10 mph (16 km/h)	100%	0.391%
12:00 15:00		Overcast. Precipitation: 0.02 in (0.5625 mm).	33°F (1°C)	8 mph (13 km/h)	100%	0.402%
15:00 18:00		Chance of light snow. Precipitation: 0 in (0.125 mm).	33°F (0°C)	10 mph (16 km/h)	99%	0.408%
18:00 21:00		Chance of light snow. Precipitation: 0.01 in (0.1875 mm).	30°F (-1°C)	13 mph (20 km/h)	93%	0.409%
21:00 00:00		Partly cloudy. Precipitation: 0 in (0.125 mm).	25°F (-4°C)	13 mph (21 km/h)	93%	0.409%

Monday, January 13

sunrise: 07:18 sunset: 16:59

Low around 8°F (-13°C), high around 28°F (-2°C).
Chance of light snow early in the afternoon (between 12 pm and 3 pm). Estimated precipitation: 0 in (0.125 mm).
More sun than clouds.
Wind: 11 mph (18 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
00:00 03:00		Partly cloudy.	17°F (-8°C)	9 mph (14 km/h)	95%	0.409%
03:00 06:00		Clear.	13°F (-10°C)	7 mph (12 km/h)	96%	0.409%
06:00 09:00		Sunny.	17°F (-8°C)	7 mph (11 km/h)	94%	0.41%
09:00 12:00		Overcast.	26°F (-3°C)	11 mph (18 km/h)	87%	0.41%
12:00 15:00		Chance of light snow. Precipitation: 0 in (0.125 mm).	27°F (-3°C)	11 mph (17 km/h)	92%	0.41%
15:00 18:00		Clear.	19°F (-7°C)	6 mph (10 km/h)	94%	0.411%
18:00 21:00		Clear.	15°F (-10°C)	8 mph (13 km/h)	91%	0.411%
21:00 00:00		Clear.	8°F (-13°C)	7 mph (11 km/h)	93%	0.412%

Tuesday, January 14

sunrise: 07:18 sunset: 17:00

Low around 4°F (-15°C), high around 20°F (-7°C).
Sunny skies.
Wind: 11 mph (18 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
00:00 03:00		Clear.	5°F (-15°C)	6 mph (10 km/h)	94%	0.413%
03:00 06:00		Clear.	5°F (-15°C)	7 mph (12 km/h)	93%	0.414%
06:00 09:00		Sunny.	10°F (-12°C)	8 mph (14 km/h)	90%	0.415%
09:00 12:00		Sunny.	17°F (-8°C)	11 mph (18 km/h)	80%	0.416%
12:00 15:00		Sunny.	19°F (-7°C)	10 mph (15 km/h)	82%	0.417%
15:00 18:00		Clear.	11°F (-12°C)	6 mph (9 km/h)	94%	0.418%
18:00 21:00		Clear.	10°F (-12°C)	7 mph (11 km/h)	93%	0.419%
21:00 00:00		Clear.	8°F (-14°C)	7 mph (11 km/h)	95%	0.42%

Wednesday, January 15

sunrise: 07:17 sunset: 17:01

Low around 2°F (-17°C), high around 30°F (-1°C).
Times of sun and clouds.
Wind: 8 mph (12 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
00:00 03:00		Mostly clear.	6°F (-14°C)	6 mph (10 km/h)	96%	0.421%
03:00 06:00		Mostly clear, with a few passing clouds.	4°F (-16°C)	6 mph (9 km/h)	96%	0.422%
06:00 09:00		Sunny.	10°F (-12°C)	5 mph (8 km/h)	88%	0.424%
09:00 12:00		Sunny.	19°F (-7°C)	6 mph (9 km/h)	81%	0.425%
12:00 15:00		More clouds than sun.	25°F (-4°C)	7 mph (11 km/h)	88%	0.426%
15:00 18:00		Overcast.	28°F (-2°C)	8 mph (12 km/h)	96%	0.427%
18:00 21:00		Mostly clear, with a few passing clouds.	25°F (-4°C)	7 mph (12 km/h)	97%	0.428%
21:00 00:00		Clear.	26°F (-3°C)	7 mph (12 km/h)	96%	0.429%

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.