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

27°F

-3°C

Humidity 64%
Wind Speed S 8 mph
Barometer 30.20 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 1 Feb 7:50 pm CST
Extended Forecast for

3 Miles SSE Troy IL

  • Tonight

    Tonight: A chance of snow before 11pm, then a chance of flurries between 11pm and midnight. Cloudy, with a low around 17. South wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 30%.

    Low: 17 °F

    Chance Snow
    then Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 37. Calm wind becoming northwest around 5 mph.

    High: 37 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25. Light and variable wind.

    Low: 25 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of snow. Mostly cloudy, with a high near 33. Light and variable wind becoming north 5 to 9 mph in the morning.

    High: 33 °F

    Slight Chance
    Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 18. North wind around 6 mph becoming calm in the evening.

    Low: 18 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 14.

    Low: 14 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of snow before 11pm, then a chance of flurries between 11pm and midnight. Cloudy, with a low around 17. South wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 30%.
Monday
Mostly cloudy, with a high near 37. Calm wind becoming northwest around 5 mph.
Monday Night
Mostly cloudy, with a low around 25. Light and variable wind.
Tuesday
A 20 percent chance of snow. Mostly cloudy, with a high near 33. Light and variable wind becoming north 5 to 9 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 18. North wind around 6 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 29.
Wednesday Night
Mostly clear, with a low around 14.
Thursday
Mostly sunny, with a high near 39.
Thursday Night
Partly cloudy, with a low around 30.
Friday
Mostly sunny, with a high near 45.
Friday Night
Partly cloudy, with a low around 21.
Saturday
Sunny, with a high near 35.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
Mostly sunny, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Troy IL
 38.68°N 89.86°W (Elev. 486 ft)
Last Update:
6:46 pm CST Feb 1, 2026
Forecast Valid:
8pm CST Feb 1, 2026-6pm CST Feb 8, 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