Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

A Few Clouds

57°F

14°C

Humidity 94%
Wind Speed Vrbl 3 mph
Barometer 30.16 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 3 Aug 6:50 am CDT
Extended Forecast for

Troy ILSimilar City Names

  • Today

    Today: Increasing clouds, with a high near 81. Northeast wind 5 to 8 mph.

    High: 81 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 65. Northeast wind 3 to 6 mph.

    Low: 65 °F

    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm.  Mostly cloudy, with a high near 81. East wind 5 to 8 mph.

    High: 81 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 67. East wind around 6 mph becoming calm  in the evening.

    Low: 67 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 83. Calm wind becoming east around 6 mph in the afternoon.

    High: 83 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 81. Northeast wind 5 to 8 mph.
Tonight
Mostly cloudy, with a low around 65. Northeast wind 3 to 6 mph.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81. East wind 5 to 8 mph.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67. East wind around 6 mph becoming calm in the evening.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 83. Calm wind becoming east around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 67.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Sunny, with a high near 87.
Thursday Night
Mostly clear, with a low around 70.
Friday
Sunny, with a high near 90.
Friday Night
Mostly clear, with a low around 72.
Saturday
Sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
Troy ILSimilar City Names
 38.72°N 89.89°W (Elev. 551 ft)
5:26 am CDT Aug 3, 2025
6am CDT Aug 3, 2025-6pm CDT Aug 9, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database