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Heavy Snow in the Sierra Nevada; Heavy Rainfall in Texas Sunday

Heavy snow is expected in the Sierra Nevada mountain ranges into Saturday causing hazardous travel conditions. Winter Storm Warnings have been issued. Thunderstorms and moderate to heavy rainfall are expected across portions of eastern Texas into Louisiana on Sunday. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

27°F

-3°C

Humidity 90%
Wind Speed Calm
Barometer 30.40 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 15 Nov 4:55 am CST
Extended Forecast for

East Alton IL

  • Today

    Today: Patchy fog between 8am and 9am. Otherwise, mostly sunny, with a high near 54. Calm wind.

    High: 54 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 30. Light southeast wind.

    Low: 30 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 56. Calm wind becoming south around 5 mph in the morning.

    High: 56 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 32. Southeast wind around 5 mph becoming calm in the evening.

    Low: 32 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 59. Calm wind becoming south around 6 mph in the morning.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 35.

    Low: 35 °F

    Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog between 8am and 9am. Otherwise, mostly sunny, with a high near 54. Calm wind.
Tonight
Mostly clear, with a low around 30. Light southeast wind.
Monday
Sunny, with a high near 56. Calm wind becoming south around 5 mph in the morning.
Monday Night
Mostly clear, with a low around 32. Southeast wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 59. Calm wind becoming south around 6 mph in the morning.
Tuesday Night
Clear, with a low around 35.
Wednesday
Mostly sunny, with a high near 63.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 69.
Friday Night
Partly cloudy, with a low around 49.
Saturday
A 30 percent chance of rain. Mostly sunny, with a high near 71.
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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:
4:36 am CST Nov 15, 2026
Forecast Valid:
5am CST Nov 15, 2026-6pm CST Nov 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation