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.

Fair

4°F

-16°C

Humidity 81%
Wind Speed Calm
Barometer 30.34 in
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Last update 30 Jan 3:55 am CST
Extended Forecast for

2 Miles WSW Alton IL

  • Today

    Today: A chance of flurries after 1pm. Partly sunny and cold, with a high near 18. North wind 5 to 11 mph.

    High: 18 °F

    Chance
    Flurries

  • Tonight

    Tonight: A chance of flurries before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 5. North wind around 11 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 7 to 13 mph, with gusts as high as 20 mph.

    High: 19 °F

    Cold

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 2. Northwest wind around 6 mph becoming calm in the evening.

    Low: 2 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 30. Calm wind becoming south 5 to 8 mph in the morning.

    High: 30 °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 36.

    High: 36 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain and snow after noon. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.

    High: 38 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

Detailed Forecast

Today
A chance of flurries after 1pm. Partly sunny and cold, with a high near 18. North wind 5 to 11 mph.
Tonight
A chance of flurries before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 5. North wind around 11 mph.
Saturday
Mostly sunny and cold, with a high near 19. Wind chill values as low as -10. Northwest wind 7 to 13 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 2. Northwest wind around 6 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 30. Calm wind becoming south 5 to 8 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 18.
Monday
Partly sunny, with a high near 36.
Monday Night
Mostly cloudy, with a low around 22.
Tuesday
A chance of rain and snow after noon. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.
Tuesday Night
A chance of rain before midnight, then a slight chance of snow. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Wednesday
Cloudy, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 20.
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:
3:16 am CST Jan 30, 2026
Forecast Valid:
4am CST Jan 30, 2026-6pm CST Feb 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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