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

59°F

15°C

Humidity 82%
Wind Speed N 5 mph
Barometer 29.89 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 18 Nov 4:50 pm CST
Extended Forecast for

4 Miles NNE Troy IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 46. North wind 3 to 5 mph.

    Low: 46 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 57. Light and variable wind.

    High: 57 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 48. Light southeast wind.

    Low: 48 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: Rain likely and possibly a thunderstorm before noon, then rain likely between noon and 3pm, then rain likely and possibly a thunderstorm after 3pm. Cloudy, with a high near 61. South wind 3 to 8 mph. Chance of precipitation is 70%.

    High: 61 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely and possibly a thunderstorm. Cloudy, with a low around 53. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 70%.

    Low: 53 °F

    Rain Likely

  • Friday

    Friday: Rain. High near 59. Chance of precipitation is 80%.

    High: 59 °F

    Rain

  • Friday Night

    Friday Night: A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain
    then Slight
    Chance Rain

  • Saturday

    Saturday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 46. North wind 3 to 5 mph.
Wednesday
Cloudy, with a high near 57. Light and variable wind.
Wednesday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 48. Light southeast wind.
Thursday
Rain likely and possibly a thunderstorm before noon, then rain likely between noon and 3pm, then rain likely and possibly a thunderstorm after 3pm. Cloudy, with a high near 61. South wind 3 to 8 mph. Chance of precipitation is 70%.
Thursday Night
Rain likely and possibly a thunderstorm. Cloudy, with a low around 53. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 70%.
Friday
Rain. High near 59. Chance of precipitation is 80%.
Friday Night
A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 46.
Saturday
Partly sunny, with a high near 58.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Sunny, with a high near 62.
Sunday Night
Partly cloudy, with a low around 43.
Monday
A 30 percent chance of rain. Partly sunny, with a high near 60.
Monday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 44.
Tuesday
A 40 percent chance of rain. Mostly cloudy, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Troy IL
 38.79°N 89.88°W (Elev. 551 ft)
Last Update:
4:56 pm CST Nov 18, 2025
Forecast Valid:
5pm CST Nov 18, 2025-6pm CST Nov 25, 2025
 
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