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.

Mostly Cloudy

70°F

21°C

Humidity 71%
Wind Speed E 10 mph
Barometer 29.87 in (1010.9 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 21 Jun 6:54 am CDT
Extended Forecast for

3 Miles SW Godfrey IL

Flood Watch until June 22, 01:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until June 22, 01:00am

    NOW until 1:00am Mon

    Flood Watch

  • Today

    High: 83 °F

    Chance
    T-storms then
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 1am. Low around 62. Southwest wind 8 to 11 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%.

    Low: 62 °F

    T-storms then
    Chance
    T-storms

  • Monday

    Monday: Mostly cloudy, with a high near 76. North wind around 11 mph.

    High: 76 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 60. Northeast wind 3 to 8 mph.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 81. Northeast wind 3 to 5 mph.

    High: 81 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 83.

    High: 83 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

Detailed Forecast

Today
Showers and thunderstorms. High near 83. Southeast wind 7 to 15 mph becoming south in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 80%.
Tonight
Showers and thunderstorms, mainly before 1am. Low around 62. Southwest wind 8 to 11 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%.
Monday
Mostly cloudy, with a high near 76. North wind around 11 mph.
Monday Night
Partly cloudy, with a low around 60. Northeast wind 3 to 8 mph.
Tuesday
Mostly sunny, with a high near 81. Northeast wind 3 to 5 mph.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 20%.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Godfrey IL
 38.93°N 90.22°W (Elev. 597 ft)
Last Update:
6:56 am CDT Jun 21, 2026
Forecast Valid:
7am 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