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

37°F

3°C

Humidity 45%
Wind Speed NW 24 G 38 mph
Barometer 29.97 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 14 Jan 1:50 pm CST
Extended Forecast for

2 Miles WNW Alton IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 38. Breezy, with a northwest wind 20 to 23 mph, with gusts as high as 37 mph.

    High: 38 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Clear, with a low around 18. Northwest wind 8 to 17 mph, with gusts as high as 26 mph.

    Low: 18 °F

    Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 34. Northwest wind around 8 mph becoming south in the afternoon.

    High: 34 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: A 50 percent chance of snow. Cloudy, then gradually becoming partly cloudy, with a low around 28. South wind 7 to 10 mph becoming west after midnight.

    Low: 28 °F

    Chance Snow

  • Friday

    Friday: Partly sunny, with a high near 44. West wind 10 to 17 mph, with gusts as high as 26 mph.

    High: 44 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of snow showers. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Slight Chance
    Snow Showers

  • Saturday

    Saturday: Partly sunny, with a high near 24.

    High: 24 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 9.

    Low: 9 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 25.

    High: 25 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 38. Breezy, with a northwest wind 20 to 23 mph, with gusts as high as 37 mph.
Tonight
Clear, with a low around 18. Northwest wind 8 to 17 mph, with gusts as high as 26 mph.
Thursday
Increasing clouds, with a high near 34. Northwest wind around 8 mph becoming south in the afternoon.
Thursday Night
A 50 percent chance of snow. Cloudy, then gradually becoming partly cloudy, with a low around 28. South wind 7 to 10 mph becoming west after midnight.
Friday
Partly sunny, with a high near 44. West wind 10 to 17 mph, with gusts as high as 26 mph.
Friday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 20.
Saturday
Partly sunny, with a high near 24.
Saturday Night
Partly cloudy, with a low around 9.
Sunday
Mostly sunny, with a high near 25.
Sunday Night
Partly cloudy, with a low around 15.
M.L.King Day
Mostly sunny, with a high near 25.
Monday Night
Mostly clear, with a low around 10.
Tuesday
Sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Alton IL
 38.91°N 90.19°W (Elev. 538 ft)
Last Update:
2:21 pm CST Jan 14, 2026
Forecast Valid:
2pm CST Jan 14, 2026-6pm CST Jan 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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