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

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Partly Cloudy and Breezy

45°F

7°C

Humidity 37%
Wind Speed NW 21 G 35 mph
Barometer 30.17 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 26 Nov 12:45 pm CST
Extended Forecast for

2 Miles WSW Alton IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 44. Breezy, with a west wind 16 to 22 mph, with gusts as high as 39 mph.

    High: 44 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 28. West wind 7 to 16 mph, with gusts as high as 24 mph.

    Low: 28 °F

    Partly Cloudy

  • Thanksgiving Day

    Thanksgiving Day: Sunny, with a high near 41. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 41 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 22. Northwest wind 5 to 7 mph becoming calm after midnight.

    Low: 22 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 39. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 39 °F

    Sunny

  • Friday Night

    Friday Night: A 50 percent chance of snow after midnight. Cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Snow before noon, then rain, possibly mixed with snow. High near 40. Chance of precipitation is 90%.

    High: 40 °F

    Snow then
    Rain/Snow

  • Saturday Night

    Saturday Night: Rain likely, mainly before midnight. Cloudy, with a low around 26. Chance of precipitation is 60%.

    Low: 26 °F

    Rain Likely
    then Slight
    Chance Rain

  • Sunday

    Sunday: Mostly cloudy, with a high near 32.

    High: 32 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 44. Breezy, with a west wind 16 to 22 mph, with gusts as high as 39 mph.
Tonight
Partly cloudy, with a low around 28. West wind 7 to 16 mph, with gusts as high as 24 mph.
Thanksgiving Day
Sunny, with a high near 41. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Thursday Night
Clear, with a low around 22. Northwest wind 5 to 7 mph becoming calm after midnight.
Friday
Sunny, with a high near 39. Calm wind becoming southeast around 5 mph in the afternoon.
Friday Night
A 50 percent chance of snow after midnight. Cloudy, with a low around 29.
Saturday
Snow before noon, then rain, possibly mixed with snow. High near 40. Chance of precipitation is 90%.
Saturday Night
Rain likely, mainly before midnight. Cloudy, with a low around 26. Chance of precipitation is 60%.
Sunday
Mostly cloudy, with a high near 32.
Sunday Night
Mostly cloudy, with a low around 17.
Monday
A 30 percent chance of snow. Mostly cloudy, with a high near 28.
Monday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 17.
Tuesday
Mostly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Alton IL
 38.88°N 90.19°W (Elev. 407 ft)
Last Update:
1:20 pm CST Nov 26, 2025
Forecast Valid:
1pm CST Nov 26, 2025-6pm CST Dec 2, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation