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.

Fair

51°F

11°C

Humidity 77%
Wind Speed E 10 mph
Barometer 29.60 in (1002.3 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 15 Mar 2:54 am CDT
Extended Forecast for

7 Miles NNE Troy MO

Wind Advisory March 15, 10:00am until March 16, 12:00pm
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: Mostly cloudy, with a low around 54. South wind 11 to 13 mph, with gusts as high as 26 mph.

    Low: 54 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain and thunderstorms likely, then rain and possibly a thunderstorm after 2pm. Temperature rising to near 65 by noon, then falling to around 51 during the remainder of the day. South wind 15 to 18 mph becoming west in the afternoon. Winds could gust as high as 43 mph. Chance of precipitation is 90%.

    High: 65 °F⇓

    Chance
    T-storms then
    Rain

  • Sunday Night

    Sunday Night: A chance of rain before 9pm, then a chance of snow. Mostly cloudy, with a low around 18. Blustery, with a northwest wind 22 to 26 mph, with gusts as high as 49 mph. Chance of precipitation is 40%.

    Low: 18 °F

    Blustery.
    Chance
    Rain/Snow
    then Chance
    Snow

  • Monday

    Monday: A 20 percent chance of snow before 1pm. Partly sunny, with a high near 29. Blustery, with a northwest wind 17 to 23 mph, with gusts as high as 47 mph.

    High: 29 °F

    Slight Chance
    Snow and
    Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 12. Northwest wind 8 to 15 mph, with gusts as high as 29 mph.

    Low: 12 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow before 1am, then a chance of rain and snow between 1am and 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.

    Low: 30 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 54. South wind 11 to 13 mph, with gusts as high as 26 mph.
Sunday
Rain and thunderstorms likely, then rain and possibly a thunderstorm after 2pm. Temperature rising to near 65 by noon, then falling to around 51 during the remainder of the day. South wind 15 to 18 mph becoming west in the afternoon. Winds could gust as high as 43 mph. Chance of precipitation is 90%.
Sunday Night
A chance of rain before 9pm, then a chance of snow. Mostly cloudy, with a low around 18. Blustery, with a northwest wind 22 to 26 mph, with gusts as high as 49 mph. Chance of precipitation is 40%.
Monday
A 20 percent chance of snow before 1pm. Partly sunny, with a high near 29. Blustery, with a northwest wind 17 to 23 mph, with gusts as high as 47 mph.
Monday Night
Mostly clear, with a low around 12. Northwest wind 8 to 15 mph, with gusts as high as 29 mph.
Tuesday
Mostly sunny, with a high near 38.
Tuesday Night
A chance of snow before 1am, then a chance of rain and snow between 1am and 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 63.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Sunny, with a high near 71.
Thursday Night
Mostly clear, with a low around 44.
Friday
Mostly sunny, with a high near 76.
Friday Night
Mostly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NNE Troy MO
 39.06°N 90.9°W (Elev. 738 ft)
Last Update:
2:11 am CDT Mar 15, 2026
Forecast Valid:
3am CDT Mar 15, 2026-6pm CDT Mar 21, 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