National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

39°F

4°C

Humidity 67%
Wind Speed NW 8 mph
Barometer 30.28 in (1025.2 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 11 Mar 11:54 pm CDT
Extended Forecast for

5 Miles NE Troy MO

  • Overnight

    Overnight: Clear, with a low around 30. Northwest wind 5 to 9 mph becoming light.

    Low: 30 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 55. Calm wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44. South wind 10 to 18 mph, with gusts as high as 33 mph.

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 59. West wind 8 to 13 mph, with gusts as high as 28 mph.

    High: 59 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 35. Light and variable wind.

    Low: 35 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 60.

    High: 60 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Rain and possibly a thunderstorm. High near 64. Breezy. Chance of precipitation is 80%.

    High: 64 °F

    Rain and
    Breezy

  • Sunday Night

    Sunday Night: A chance of rain and snow before 1am. Mostly cloudy, with a low around 22. Blustery. Chance of precipitation is 30%.

    Low: 22 °F

    Chance
    Rain/Snow and
    Blustery

Detailed Forecast

Overnight
Clear, with a low around 30. Northwest wind 5 to 9 mph becoming light.
Thursday
Sunny, with a high near 55. Calm wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 44. South wind 10 to 18 mph, with gusts as high as 33 mph.
Friday
Mostly sunny, with a high near 59. West wind 8 to 13 mph, with gusts as high as 28 mph.
Friday Night
Mostly cloudy, with a low around 35. Light and variable wind.
Saturday
Mostly cloudy, with a high near 60.
Saturday Night
A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 50.
Sunday
Rain and possibly a thunderstorm. High near 64. Breezy. Chance of precipitation is 80%.
Sunday Night
A chance of rain and snow before 1am. Mostly cloudy, with a low around 22. Blustery. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 35.
Monday Night
Mostly clear, with a low around 17.
Tuesday
Partly sunny, with a high near 43.
Tuesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NE Troy MO
 39.01°N 90.93°W (Elev. 499 ft)
Last Update:
10:31 pm CDT Mar 11, 2026
Forecast Valid:
12am CDT Mar 12, 2026-6pm CDT Mar 18, 2026
 
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