Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast

68°F

20°C

Humidity 94%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 66°F (19°C)
Visibility 7.00 mi
Last update 15 Oct 1:35 am CDT
Extended Forecast for

Troy IL

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 5am.  Mostly cloudy, with a low around 67. Light east wind.

    Low: 67 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms before 9am, then showers likely and possibly a thunderstorm between 9am and 1pm, then a chance of showers and thunderstorms after 1pm.  Patchy fog between 10am and 11am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 81. East wind 5 to 11 mph becoming southwest in the afternoon.  Chance of precipitation is 70%.

    High: 81 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 2am, then isolated showers between 2am and 3am.  Increasing clouds, with a low around 48. Southwest wind 11 to 18 mph becoming northwest after midnight. Winds could gust as high as 26 mph.  Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely

  • Friday

    Friday: Increasing clouds, with a high near 57. Breezy, with a northwest wind 20 to 22 mph, with gusts as high as 29 mph.

    High: 57 °F

    Increasing
    Clouds and
    Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 39. North wind 10 to 18 mph.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 37.

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 67. Light east wind.
Thursday
A chance of showers and thunderstorms before 9am, then showers likely and possibly a thunderstorm between 9am and 1pm, then a chance of showers and thunderstorms after 1pm. Patchy fog between 10am and 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 81. East wind 5 to 11 mph becoming southwest in the afternoon. Chance of precipitation is 70%.
Thursday Night
Showers and thunderstorms likely before 2am, then isolated showers between 2am and 3am. Increasing clouds, with a low around 48. Southwest wind 11 to 18 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 60%.
Friday
Increasing clouds, with a high near 57. Breezy, with a northwest wind 20 to 22 mph, with gusts as high as 29 mph.
Friday Night
Mostly cloudy, with a low around 39. North wind 10 to 18 mph.
Saturday
Sunny, with a high near 60.
Saturday Night
Clear, with a low around 37.
Sunday
Sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 40.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Troy IL
 38.72°N 89.89°W (Elev. 551 ft)
1:26 am CDT Oct 15, 2026
1am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
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Additional Resources

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