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.

Partly Cloudy

15°F

-9°C

Humidity 65%
Wind Speed N 3 mph
Barometer 30.36 in
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Last update 29 Jan 10:35 pm CST
Extended Forecast for

2 Miles WSW Alton IL

  • Tonight

    Tonight: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 2. North wind 3 to 8 mph.

    Low: 2 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Friday

    Friday: A chance of flurries after 1pm. Partly sunny and cold, with a high near 18. North wind 5 to 10 mph.

    High: 18 °F

    Chance
    Flurries

  • Friday Night

    Friday Night: A chance of flurries before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 5. North wind around 10 mph, with gusts as high as 20 mph.

    Low: 5 °F

    Chance
    Flurries

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 19. Wind chill values as low as -10. Northwest wind 8 to 13 mph, with gusts as high as 21 mph.

    High: 19 °F

    Cold

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 1. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 1 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 34.

    High: 34 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 2. North wind 3 to 8 mph.
Friday
A chance of flurries after 1pm. Partly sunny and cold, with a high near 18. North wind 5 to 10 mph.
Friday Night
A chance of flurries before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 5. North wind around 10 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny and cold, with a high near 19. Wind chill values as low as -10. Northwest wind 8 to 13 mph, with gusts as high as 21 mph.
Saturday Night
Mostly clear, with a low around 1. Northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 29.
Sunday Night
Mostly cloudy, with a low around 18.
Monday
Partly sunny, with a high near 34.
Monday Night
Mostly cloudy, with a low around 19.
Tuesday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 35.
Tuesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 24.
Wednesday
A 20 percent chance of snow. Mostly cloudy, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 21.
Thursday
Partly sunny, with a high near 35.
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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:
10:01 pm CST Jan 29, 2026
Forecast Valid:
10pm CST Jan 29, 2026-6pm CST Feb 5, 2026
 
Forecast Discussion
 
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Additional Resources

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