National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

31°F

-1°C

Humidity 53%
Wind Speed W 15 G 23 mph
Barometer 30.26 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 11 Jan 1:15 am CST
Extended Forecast for

East Alton IL

  • Overnight

    Overnight: A chance of flurries before 5am. Mostly clear, with a low around 26. Northwest wind 14 to 16 mph, with gusts as high as 28 mph.

    Low: 26 °F

    Chance
    Flurries

  • Sunday

    Sunday: Sunny, with a high near 38. Northwest wind 7 to 15 mph, with gusts as high as 26 mph.

    High: 38 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 26. West wind 5 to 7 mph becoming south after midnight.

    Low: 26 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 51. Southwest wind 6 to 9 mph.

    High: 51 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 36. Southwest wind 3 to 7 mph.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 43.

    High: 43 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of flurries before 5am. Mostly clear, with a low around 26. Northwest wind 14 to 16 mph, with gusts as high as 28 mph.
Sunday
Sunny, with a high near 38. Northwest wind 7 to 15 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 26. West wind 5 to 7 mph becoming south after midnight.
Monday
Sunny, with a high near 51. Southwest wind 6 to 9 mph.
Monday Night
Partly cloudy, with a low around 36. Southwest wind 3 to 7 mph.
Tuesday
Partly sunny, with a high near 59.
Tuesday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 38.
Wednesday
Mostly cloudy, with a high near 43.
Wednesday Night
Partly cloudy, with a low around 19.
Thursday
Mostly sunny, with a high near 37.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
Mostly cloudy, with a high near 42.
Friday Night
Mostly cloudy, with a low around 23.
Saturday
Mostly cloudy, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
East Alton IL
 38.88°N 90.11°W (Elev. 436 ft)
Last Update:
12:36 am CST Jan 11, 2026
Forecast Valid:
1am CST Jan 11, 2026-6pm CST Jan 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation