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.

Overcast and Breezy

36°F

2°C

Humidity 65%
Wind Speed NW 21 G 32 mph
Barometer 29.85 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 10 Dec 12:50 pm CST
Extended Forecast for

2 Miles WSW Alton IL

  • This Afternoon

    This Afternoon: Cloudy, with a high near 44. Breezy, with a northwest wind 14 to 21 mph, with gusts as high as 32 mph.

    High: 44 °F

    Cloudy and
    Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 25. Northwest wind 6 to 13 mph, with gusts as high as 21 mph.

    Low: 25 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after 4pm. Mostly cloudy, with a high near 34. Light and variable wind becoming southeast 5 to 8 mph in the morning.

    High: 34 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 31. Southeast wind around 8 mph becoming west after midnight.

    Low: 31 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 39. Northwest wind 8 to 14 mph, with gusts as high as 21 mph.

    High: 39 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 31.

    High: 31 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 7.

    Low: 7 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 22.

    High: 22 °F

    Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 44. Breezy, with a northwest wind 14 to 21 mph, with gusts as high as 32 mph.
Tonight
Mostly cloudy, with a low around 25. Northwest wind 6 to 13 mph, with gusts as high as 21 mph.
Thursday
A 20 percent chance of snow after 4pm. Mostly cloudy, with a high near 34. Light and variable wind becoming southeast 5 to 8 mph in the morning.
Thursday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 31. Southeast wind around 8 mph becoming west after midnight.
Friday
Partly sunny, with a high near 39. Northwest wind 8 to 14 mph, with gusts as high as 21 mph.
Friday Night
Mostly cloudy, with a low around 20.
Saturday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 31.
Saturday Night
Mostly cloudy, with a low around 7.
Sunday
Sunny, with a high near 22.
Sunday Night
Mostly clear, with a low around 11.
Monday
Mostly sunny, with a high near 37.
Monday Night
Mostly cloudy, with a low around 27.
Tuesday
Partly sunny, with a high near 45.
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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:
10:26 am CST Dec 10, 2025
Forecast Valid:
1pm CST Dec 10, 2025-6pm CST Dec 16, 2025
 
Forecast Discussion
 
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Additional Resources

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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