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

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Overcast and Breezy

56°F

13°C

Humidity 90%
Wind Speed W 25 G 33 mph
Barometer 29.90 in (1012.2 mb)
Dewpoint 53°F (12°C)
Visibility 7.00 mi
Last update 7 Mar 10:54 am CST
Extended Forecast for

5 Miles NE Troy MO

  • Today

    Today: Cloudy, with a temperature falling to around 46 by 4pm. West wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 61 °F⇓

    Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 35. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 35 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 66. Light southwest wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 20 mph.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 46. Southwest wind around 6 mph.

    Low: 46 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 78. Southwest wind 6 to 10 mph, with gusts as high as 24 mph.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain after midnight. Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear
    then Chance
    Rain

  • Tuesday

    Tuesday: A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after noon. Partly sunny, with a high near 80. Chance of precipitation is 70%.

    High: 80 °F

    Chance Rain
    then Rain
    Likely

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 48. Chance of precipitation is 90%.

    Low: 48 °F

    Rain

  • Wednesday

    Wednesday: Rain likely and possibly a thunderstorm before noon, then a chance of rain. Cloudy, with a high near 61. Chance of precipitation is 70%.

    High: 61 °F

    Rain Likely
    then Chance
    Rain

Detailed Forecast

Today
Cloudy, with a temperature falling to around 46 by 4pm. West wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 30 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 35. Northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Sunny, with a high near 66. Light southwest wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Clear, with a low around 46. Southwest wind around 6 mph.
Monday
Sunny, with a high near 78. Southwest wind 6 to 10 mph, with gusts as high as 24 mph.
Monday Night
A 30 percent chance of rain after midnight. Mostly clear, with a low around 58.
Tuesday
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after noon. Partly sunny, with a high near 80. Chance of precipitation is 70%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 48. Chance of precipitation is 90%.
Wednesday
Rain likely and possibly a thunderstorm before noon, then a chance of rain. Cloudy, with a high near 61. Chance of precipitation is 70%.
Wednesday Night
Partly cloudy, with a low around 33.
Thursday
Mostly sunny, with a high near 55.
Thursday Night
Mostly cloudy, with a low around 41.
Friday
Mostly cloudy, with a high near 66.
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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 am CST Mar 7, 2026
Forecast Valid:
10am CST Mar 7, 2026-6pm CDT Mar 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation