Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast

57°F

14°C

Humidity 72%
Wind Speed W 10 mph
Barometer 29.80 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 4 Nov 12:50 pm CST
Extended Forecast for

Troy IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 59. West wind 7 to 11 mph.

    High: 59 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 44. Southwest wind 3 to 6 mph.

    Low: 44 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Increasing clouds, with a high near 62. West wind 6 to 11 mph.

    High: 62 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Isolated showers between 9pm and 10pm.  Increasing clouds, with a low around 45. Northwest wind 3 to 7 mph.  Chance of precipitation is 20%.

    Low: 45 °F

    Isolated
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 54. North wind 7 to 11 mph.

    High: 54 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 59. West wind 7 to 11 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 44. Southwest wind 3 to 6 mph.
Thursday
Increasing clouds, with a high near 62. West wind 6 to 11 mph.
Thursday Night
Isolated showers between 9pm and 10pm. Increasing clouds, with a low around 45. Northwest wind 3 to 7 mph. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 54. North wind 7 to 11 mph.
Friday Night
Mostly clear, with a low around 33.
Saturday
Sunny, with a high near 53.
Saturday Night
Mostly clear, with a low around 32.
Sunday
Sunny, with a high near 58.
Sunday Night
Clear, with a low around 35.
Monday
Sunny, with a high near 63.
Monday Night
Clear, with a low around 40.
Tuesday
Sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
Troy IL
 38.72°N 89.89°W (Elev. 551 ft)
12:26 pm CST Nov 4, 2026
1pm CST Nov 4, 2026-6pm CST Nov 10, 2026
 
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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