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

72°F

22°C

Humidity 64%
Wind Speed SE 10 mph
Barometer 29.85 in (1010.3 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 21 Jun 7:54 am CDT
Extended Forecast for

4 Miles SW Elsberry MO

Flood Watch June 21, 08:08am until June 21, 07:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch June 21, 08:08am until June 21, 07:00pm

    NOW until 7:00pm Sun

    Flood Watch

  • Today

    High: 79 °F

    T-storms

  • Tonight

    Tonight: Showers and thunderstorms, mainly before midnight. Low around 60. Southwest wind 8 to 10 mph becoming north after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%.

    Low: 60 °F

    T-storms then
    Slight Chance
    T-storms

  • Monday

    Monday: Mostly cloudy, with a high near 75. North wind 7 to 9 mph, with gusts as high as 20 mph.

    High: 75 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 58. North wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 79. Light east wind.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 82.

    High: 82 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Today
Showers and thunderstorms. High near 79. South wind 8 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Tonight
Showers and thunderstorms, mainly before midnight. Low around 60. Southwest wind 8 to 10 mph becoming north after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%.
Monday
Mostly cloudy, with a high near 75. North wind 7 to 9 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 58. North wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 79. Light east wind.
Tuesday Night
Mostly clear, with a low around 61.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 63.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61. Chance of precipitation is 20%.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Elsberry MO
 39.15°N 90.86°W (Elev. 682 ft)
Last Update:
6:56 am CDT Jun 21, 2026
Forecast Valid:
8am CDT Jun 21, 2026-6pm CDT Jun 27, 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