Upper Alton, Illinois Weather
No Watches or Warnings for Upper Alton
Issued: 12:21 pm CST Dec 17, 2025 Latitude: 38.9114366 Longitude: -90.1506643 View on Google Maps
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Current Conditions at
ALTON - (KALN)
54°
Clear
as of 12:50 PM CST
Rel. Humidity: 50%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Cloud Level(s): Clear
Current Conditions at
ST CHARLES - (KSET)
52°
Clear
as of 12:54 PM CST
Rel. Humidity: 53%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
54°
Mostly Cloudy
as of 12:51 PM CST
Rel. Humidity: 50%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
5 MPH
150° Southeast
Cloud Level(s): Broken at 25000ft
Current Conditions at
EAST ST LOUIS - (KCPS)
55°
Clear
as of 12:53 PM CST
Rel. Humidity: 47%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Cloud Level(s): Clear
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This Afternoon... Sunny, with a high near 54. Southeast wind 3 to 7 mph. |
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Tonight... Isolated showers after 5am. Increasing clouds, with a temperature falling to near 45 by 8pm, then rising to around 52 during the remainder of the night. South wind 8 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 20%. |
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Thursday... Showers, mainly before 2pm. Temperature rising to near 54 by 8am, then falling to around 44 during the remainder of the day. South wind 14 to 18 mph becoming west in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. |
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Thursday Night... Partly cloudy, with a low around 23. Breezy, with a west wind 11 to 20 mph, with gusts as high as 30 mph. |
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Friday... Sunny, with a high near 38. West wind 7 to 10 mph becoming south in the afternoon. |
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Friday Night... Partly cloudy, with a low around 31. |
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Saturday... Partly sunny, with a high near 54. |
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Saturday Night... Partly cloudy, with a low around 26. |
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Sunday... Mostly sunny, with a high near 42. |
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Sunday Night... Mostly cloudy, with a low around 29. |
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Monday... Partly sunny, with a high near 46. |
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Monday Night... Mostly cloudy, with a low around 40. |
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Tuesday... A 20 percent chance of rain. Partly sunny, with a high near 58. |
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Current Radar Image
Sun Almanac for Upper Alton, Illinois
Sunrise: 07:14 AM
Sunset: 4:40 PM
Civil Sunrise:06:44 AM
Civil Sunset: 5:10 PM
Nautical Sunrise: 06:10 AM
Nautical Sunset: 5:44 PM
Astro Sunrise: 05:38 AM
Astro Sunset: 6:16 PM
Illinois' Current Temperatures
Illinois' Satellite Image
Illinois' Current Wind Direction
| National Summary |
of upper and lower values of current conditions amongst 6623 locations
in the contiguous United States |
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High
Temp |
81° |
Ft Myers Sw Airportt, Florida
and 5 other locations
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Low
Temp |
14° |
Solon Springs, Wisconsin
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Wind
Speed |
61mph |
Cutbank, Montana
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Wind
Gust |
83mph |
Cutbank, Montana
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Wind
Chill |
12° |
Salida Mountain, Colorado
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High
Pressure |
30.28Hg |
North Bend, Oregon
and 3 other locations
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Low
Pressure |
28.96Hg |
Malta, Montana
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| # Locations Reporting Snow |
3 |
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| # Locations Reporting Rain |
39 |
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| # Locations Reporting Fog |
5 |
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| Average Temperature in the Contiguous USA |
52° |
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National Weather Service for official information.
