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

79°F

26°C

Humidity 74%
Wind Speed Vrbl 5 mph
Barometer 30.17 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 5 Aug 7:50 pm CDT
Extended Forecast for

Troy ILSimilar City Names

  • Tonight

    Tonight: A 20 percent chance of showers before 8pm. Patchy fog after 4am. Otherwise, increasing clouds, with a low around 67. Light east wind.

    Low: 67 °F

    Slight Chance
    Showers then
    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 87. Light southeast wind.

    High: 87 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Clear during the early evening, then becoming mostly cloudy, with a low around 69. Light southeast wind.

    Low: 69 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 90. Calm wind becoming south around 6 mph in the afternoon.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 71. Southeast wind 3 to 6 mph.

    Low: 71 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers before 8pm. Patchy fog after 4am. Otherwise, increasing clouds, with a low around 67. Light east wind.
Wednesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 87. Light southeast wind.
Wednesday Night
Clear during the early evening, then becoming mostly cloudy, with a low around 69. Light southeast wind.
Thursday
Sunny, with a high near 90. Calm wind becoming south around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 71. Southeast wind 3 to 6 mph.
Friday
Sunny, with a high near 90.
Friday Night
Mostly clear, with a low around 72.
Saturday
Sunny, with a high near 91.
Saturday Night
Mostly clear, with a low around 73.
Sunday
Sunny, with a high near 91.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly 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)
Last Update:
5:41 pm CDT Aug 5, 2025
Forecast Valid:
7pm CDT Aug 5, 2025-6pm CDT Aug 12, 2025
 
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