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.

Partly Cloudy

79°F

26°C

Humidity 79%
Wind Speed W 5 mph
Barometer 29.99 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 25 Jun 9:50 am CDT
Extended Forecast for

4 Miles SE Troy IL

Flood Watch June 25, 01:00pm until June 26, 07:00am
Click here for hazard details and duration
Flood Watch

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 85. West wind around 6 mph becoming calm in the morning.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Some of the storms could produce heavy rainfall. Low around 69. Calm wind becoming southeast around 5 mph after midnight. Chance of precipitation is 80%.

    Low: 69 °F

    Heavy Rain
    then Showers

  • Friday

    Friday: Showers and possibly a thunderstorm before noon, then showers and thunderstorms likely, mainly after 2pm. High near 82. South wind 7 to 10 mph. Chance of precipitation is 80%.

    High: 82 °F

    Showers then
    T-storms
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7pm. Increasing clouds, with a low around 69. Southwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 70%.

    Low: 69 °F

    Showers
    Likely

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 87 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 73.

    Low: 73 °F

    Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 85. West wind around 6 mph becoming calm in the morning.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Some of the storms could produce heavy rainfall. Low around 69. Calm wind becoming southeast around 5 mph after midnight. Chance of precipitation is 80%.
Friday
Showers and possibly a thunderstorm before noon, then showers and thunderstorms likely, mainly after 2pm. High near 82. South wind 7 to 10 mph. Chance of precipitation is 80%.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7pm. Increasing clouds, with a low around 69. Southwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 70%.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 73.
Sunday
Sunny, with a high near 94.
Sunday Night
Mostly clear, with a low around 75.
Monday
Sunny, with a high near 95.
Monday Night
Clear, with a low around 76.
Tuesday
Sunny, with a high near 96.
Tuesday Night
Clear, with a low around 76.
Wednesday
Sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Troy IL
 38.68°N 89.86°W (Elev. 486 ft)
Last Update:
10:26 am CDT Jun 25, 2026
Forecast Valid:
10am CDT Jun 25, 2026-6pm CDT Jul 1, 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