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.

Fair

36°F

2°C

Humidity 70%
Wind Speed NW 6 mph
Barometer 29.73 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 25 Feb 6:50 am CST
Extended Forecast for

2 Miles S Troy IL

  • Today

    Today: Mostly cloudy, with a high near 51. Light and variable wind becoming north around 5 mph.

    High: 51 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 50 percent chance of rain, mainly after 9pm. Mostly cloudy, with a low around 34. Northeast wind 3 to 6 mph.

    Low: 34 °F

    Chance Rain

  • Thursday

    Thursday: Partly sunny, then gradually becoming sunny, with a high near 52. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 52 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34. Calm wind becoming south around 5 mph after midnight.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 67. Southwest wind 5 to 11 mph.

    High: 67 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain. Partly cloudy, with a low around 32.

    Low: 32 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 46. Chance of precipitation is 40%.

    High: 46 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Today
Mostly cloudy, with a high near 51. Light and variable wind becoming north around 5 mph.
Tonight
A 50 percent chance of rain, mainly after 9pm. Mostly cloudy, with a low around 34. Northeast wind 3 to 6 mph.
Thursday
Partly sunny, then gradually becoming sunny, with a high near 52. Calm wind becoming west 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 34. Calm wind becoming south around 5 mph after midnight.
Friday
Sunny, with a high near 67. Southwest wind 5 to 11 mph.
Friday Night
Mostly clear, with a low around 41.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
A 20 percent chance of rain. Partly cloudy, with a low around 32.
Sunday
A chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 46. Chance of precipitation is 40%.
Sunday Night
Rain and snow likely, mainly before midnight. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.
Monday
A 30 percent chance of rain. Mostly cloudy, with a high near 42.
Monday Night
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 30.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Troy IL
 38.7°N 89.89°W (Elev. 551 ft)
Last Update:
5:26 am CST Feb 25, 2026
Forecast Valid:
7am CST Feb 25, 2026-6pm CST Mar 3, 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