No Watches or Warnings for Alton
Issued: 4:56 pm CST Dec 21, 2025 Latitude: 38.8906038 Longitude: -90.1842764 View on Google Maps
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Current Conditions at
ALTON - (KALN)
30°
Clear
as of 6:50 PM CST
Rel. Humidity: 68%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.45 in.
Flight Rule: VFR
Cloud Level(s): Clear
Current Conditions at
ST CHARLES - (KSET)
Clear
as of 6:54 PM CST
Rel. Humidity: 80%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.43 in.
Flight Rule: VFR
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
34°
Mostly Cloudy
as of 6:51 PM CST
Rel. Humidity: 55%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.44 in.
Flight Rule: VFR
Cloud Level(s): Broken at 25000ft
Current Conditions at
EAST ST LOUIS - (KCPS)
28°
Clear
as of 6:53 PM CST
Rel. Humidity: 68%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.44 in.
Flight Rule: VFR
Cloud Level(s): Clear
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Tonight... Partly cloudy, with a low around 28. Southeast wind around 7 mph. |
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Monday... Increasing clouds, with a high near 54. South wind 6 to 10 mph. |
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Monday Night... Mostly cloudy, then gradually becoming mostly clear, with a low around 43. South wind 5 to 9 mph. |
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Tuesday... Sunny, with a high near 63. West wind around 6 mph becoming light and variable in the afternoon. |
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Tuesday Night... Partly cloudy, with a low around 47. Light and variable wind becoming southeast around 6 mph after midnight. |
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Wednesday... Mostly cloudy, with a high near 71. |
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Wednesday Night... Partly cloudy, with a low around 57. |
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Christmas Day... Partly sunny, with a high near 75. |
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Thursday Night... Mostly cloudy, with a low around 54. |
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Friday... Sunny, with a high near 66. |
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Friday Night... Mostly cloudy, with a low around 45. |
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Saturday... Mostly cloudy, with a high near 61. |
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Saturday Night... A 20 percent chance of rain. Mostly cloudy, with a low around 31. |
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Sunday... Mostly sunny, with a high near 42. |
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Current Radar Image
Sun Almanac for Alton, Illinois
Sunrise: 07:16 AM
Sunset: 4:42 PM
Civil Sunrise:06:46 AM
Civil Sunset: 5:12 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 5:46 PM
Astro Sunrise: 05:40 AM
Astro Sunset: 6:18 PM
Illinois' Current Temperatures
Illinois' Satellite Image
Illinois' Current Wind Direction
| National Summary |
of upper and lower values of current conditions amongst 6853 locations
in the contiguous United States |
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High
Temp |
81° |
Keathley C 875, Louisiana
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Low
Temp |
-2° |
Crane Lake, Minnesota
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Wind
Speed |
43mph |
Salida Mountain, Colorado
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Wind
Gust |
59mph |
Rawlins, Wyoming
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Wind
Chill |
-9° |
Robertson Field, North Dakota
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High
Pressure |
30.53Hg |
Cincinnati/Lunk, Ohio
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Low
Pressure |
29.31Hg |
Charlie, Montana
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| # Locations Reporting Snow |
28 |
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| # Locations Reporting Rain |
55 |
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| # Locations Reporting Thunderstorms / Lightning |
1 |
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| # Locations Reporting Fog |
8 |
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| Average Temperature in the Contiguous USA |
43° |
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National Weather Service for official information.
