Upper Alton, Illinois Weather
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Click for Hazardous Weather Outlook for Upper Alton, Illinois
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Weather Forecast for Upper Alton, Illinois : Madison County
Issued: 10:22 pm CST Feb 4, 2025 Latitude: 38.9114366 Longitude: -90.1506643 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
10% chance of on Overnight 80% chance of thunderstorms on Wednesday 20% chance of rain on Thursday Mostly Sunny on Friday 70% chance of rain on Saturday Mostly Sunny on Sunday Partly Sunny on Monday 30% chance of snow on Tuesday
Low: 32°F High: 41°F High: 51°F High: 41°F High: 54°F High: 38°F High: 40°F High: 35°F
Low: 47 °F Low: 30°F Low: 35°F Low: 26°F Low: 23°F Low: 25°F  
Cloudy Thunderstorms Rain Mostly Sunny Rain Mostly Sunny Partly Sunny Snow
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Current Conditions at
ALTON - (KALN)
34°
Cloudy
as of 12:35 AM CST
Rel. Humidity: 74%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 30.31 in.
Flight Rule: VFR
Wind Data
7 MPH
040° Northeast
Cloud Level(s): Solid Overcast at 3200ft
Current Conditions at
ST CHARLES - (KSET)
34°
Feels like 26°F
Cloudy
as of 11:54 PM CST
Rel. Humidity: 69%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.32 in.
Flight Rule: VFR
Wind Data
9 MPH
060° Northeast
Cloud Level(s): Solid Overcast at 3400ft
Current Conditions at
ST LOUIS - (KSTL)
36°
Feels like 27°F
Cloudy
as of 11:51 PM CST
Rel. Humidity: 64%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.31 in.
Flight Rule: VFR
Wind Data
13 MPH
050° Northeast
Cloud Level(s): Solid Overcast at 3400ft
Current Conditions at
EAST ST LOUIS - (KCPS)
37°
Feels like 29°F
Cloudy
as of 11:53 PM CST
Rel. Humidity: 64%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 30.30 in.
Flight Rule: VFR
Wind Data
13 MPH
070° East
Cloud Level(s): Solid Overcast at 3500ft
10% chance of Overnight Overnight... A slight chance of drizzle after 4am. Cloudy, with a low around 32. Northeast wind around 9 mph.
80% chance of thunderstorms Wednesday Wednesday... Drizzle likely before noon, then rain between noon and 3pm, then rain and possibly a thunderstorm after 3pm. High near 41. East wind 8 to 10 mph. Chance of precipitation is 80%.
80% chance of thunderstorms Wednesday Night Wednesday Night... Rain and possibly a thunderstorm before 9pm, then rain likely. Patchy fog before midnight. Temperature rising to around 47 by 2am. Southeast wind 6 to 9 mph becoming west after midnight. Chance of precipitation is 80%.
20% chance of rain Thursday Thursday... A 20 percent chance of rain before noon. Partly sunny, with a high near 51. Northwest wind 7 to 10 mph.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 30. Northwest wind 5 to 7 mph.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 41.
80% chance of rain Friday Night Friday Night... Rain, mainly after midnight. Low around 35. Chance of precipitation is 80%.
70% chance of rain Saturday Saturday... Rain likely, mainly before noon. Mostly cloudy, with a high near 54. Chance of precipitation is 70%.
Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 26.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 38.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 23.
Partly Sunny on Monday Monday... Partly sunny, with a high near 40.
30% chance of snow Monday Night Monday Night... A 30 percent chance of snow. Mostly cloudy, with a low around 25.
30% chance of snow Tuesday Tuesday... A 30 percent chance of snow. Partly sunny, with a high near 35.
Current Radar Image


Sun Almanac for Upper Alton, Illinois
Sunrise: 07:02 AM
Sunset: 5:27 PM
Civil Sunrise:06:35 AM
Civil Sunset: 5:55 PM
Nautical Sunrise: 06:03 AM
Nautical Sunset: 6:26 PM
Astro Sunrise: 05:32 AM
Astro Sunset: 6:57 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.