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

61°F

16°C

Humidity 94%
Wind Speed Calm
Barometer 30.11 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 6 Oct 6:50 am CDT
Extended Forecast for

3 Miles S Troy IL

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 84. Light southeast wind increasing to 5 to 9 mph in the morning.

    High: 84 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 66. Southeast wind 3 to 7 mph.

    Low: 66 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Mostly cloudy, with a high near 76. Light northwest wind becoming north 8 to 13 mph in the morning. Chance of precipitation is 30%.

    High: 76 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 51. North wind 7 to 11 mph.

    Low: 51 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 74. Northeast wind 7 to 11 mph.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 45.

    Low: 45 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 84. Light southeast wind increasing to 5 to 9 mph in the morning.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 66. Southeast wind 3 to 7 mph.
Tuesday
A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Mostly cloudy, with a high near 76. Light northwest wind becoming north 8 to 13 mph in the morning. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 51. North wind 7 to 11 mph.
Wednesday
Sunny, with a high near 74. Northeast wind 7 to 11 mph.
Wednesday Night
Clear, with a low around 45.
Thursday
Sunny, with a high near 74.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Troy IL
 38.7°N 89.89°W (Elev. 551 ft)
Last Update:
5:36 am CDT Oct 6, 2025
Forecast Valid:
6am CDT Oct 6, 2025-6pm CDT Oct 12, 2025
 
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