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.

A Few Clouds

52°F

11°C

Humidity 62%
Wind Speed Vrbl 5 mph
Barometer 30.12 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 9 Jan 3:50 pm CST
Extended Forecast for

Troy ILSimilar City Names

  • Tonight

    Tonight: A 20 percent chance of rain after 3am. Mostly cloudy, with a low around 38. Northeast wind around 6 mph becoming calm.

    Low: 38 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: A chance of rain before 9am, then a chance of sprinkles after 5pm. Cloudy through mid morning, then gradual clearing, with a high near 46. Northwest wind 8 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 46 °F

    Chance Rain
    then Sunny

  • Saturday Night

    Saturday Night: A chance of sprinkles and flurries before 11pm, then a chance of flurries between 11pm and midnight. Partly cloudy, with a low around 25. Northwest wind 9 to 15 mph, with gusts as high as 31 mph.

    Low: 25 °F

    Chance
    Sprinkles/Flurries
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 37. Northwest wind 7 to 17 mph, with gusts as high as 25 mph.

    High: 37 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 25. Light and variable wind becoming southwest 5 to 7 mph after midnight.

    Low: 25 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of rain after 3am. Mostly cloudy, with a low around 38. Northeast wind around 6 mph becoming calm.
Saturday
A chance of rain before 9am, then a chance of sprinkles after 5pm. Cloudy through mid morning, then gradual clearing, with a high near 46. Northwest wind 8 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Saturday Night
A chance of sprinkles and flurries before 11pm, then a chance of flurries between 11pm and midnight. Partly cloudy, with a low around 25. Northwest wind 9 to 15 mph, with gusts as high as 31 mph.
Sunday
Sunny, with a high near 37. Northwest wind 7 to 17 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 25. Light and variable wind becoming southwest 5 to 7 mph after midnight.
Monday
Sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 35.
Tuesday
Partly sunny, with a high near 56.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 43.
Wednesday Night
Mostly cloudy, with a low around 22.
Thursday
Mostly sunny, with a high near 35.
Thursday Night
Partly cloudy, with a low around 25.
Friday
Mostly cloudy, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Troy ILSimilar City Names
 38.72°N 89.89°W (Elev. 551 ft)
Last Update:
3:16 pm CST Jan 9, 2026
Forecast Valid:
4pm CST Jan 9, 2026-6pm CST Jan 16, 2026
 
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Additional Resources

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Chance of Precipitation