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 with Haze

68°F

20°C

Humidity 78%
Wind Speed NE 10 mph
Barometer 30.21 in (1022.4 mb)
Dewpoint 61°F (16°C)
Visibility 5.00 mi
Last update 1 Aug 1:54 am CDT
Extended Forecast for

4 Miles NNE Saint Charles MO

  • Overnight

    Overnight: Areas of smoke. Partly cloudy, with a low around 60. Northeast wind around 7 mph.

    Low: 60 °F

    Areas Smoke

  • Friday

    Friday: Areas of smoke before 8am. Mostly sunny, with a high near 81. Northeast wind 7 to 11 mph.

    High: 81 °F

    Areas Smoke
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59. Northeast wind 6 to 10 mph.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79. Northeast wind 6 to 9 mph.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59. Northeast wind 5 to 7 mph becoming calm after midnight.

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83.

    High: 83 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 20%.

    Low: 67 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Areas of smoke. Partly cloudy, with a low around 60. Northeast wind around 7 mph.
Friday
Areas of smoke before 8am. Mostly sunny, with a high near 81. Northeast wind 7 to 11 mph.
Friday Night
Mostly clear, with a low around 59. Northeast wind 6 to 10 mph.
Saturday
Sunny, with a high near 79. Northeast wind 6 to 9 mph.
Saturday Night
Mostly clear, with a low around 59. Northeast wind 5 to 7 mph becoming calm after midnight.
Sunday
Sunny, with a high near 81.
Sunday Night
Mostly cloudy, with a low around 65.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 20%.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 69.
Wednesday
Mostly sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 70.
Thursday
Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Saint Charles MO
 38.85°N 90.51°W (Elev. 436 ft)
Last Update:
1:36 am CDT Aug 1, 2025
Forecast Valid:
2am CDT Aug 1, 2025-6pm CDT Aug 7, 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