Heat and Fire Weather Concerns West; Heavy Rain and Thunderstorms from Plains to mid-Atlantic

Thunderstorms and locally heavy rainfall is expected from the Central Plains to the Ohio Valley, mid-Atlantic and across the Southeast. Severe weather from the Upper Midwest to Central Plains increases on Friday. Major to Extreme HeatRisk continues across the Southern Plains to the lower Mississippi Valley late this week. Fire weather concerns for the northern Rockies and northern Plains today. Read More >

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Overcast

77°F

25°C

Humidity 82%
Wind Speed Calm
Barometer 30.00 in (1015.3 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 10 Sep 2:54 pm CDT
Extended Forecast for

4 Miles WSW Godfrey IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms before 4pm.  Mostly cloudy, with a high near 78. Light northwest wind.

    High: 78 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Patchy fog after 3am.  Otherwise, mostly cloudy, with a low around 66. Light and variable wind.

    Low: 66 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: A slight chance of showers before 4pm, then a slight chance of showers after 5pm.  Patchy fog before 8am.  Otherwise, mostly cloudy, with a high near 84. Calm wind becoming southeast around 6 mph in the morning.  Chance of precipitation is 20%.

    High: 84 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: Mostly clear, then becoming mostly cloudy toward daybreak, with a low around 68. Southeast wind 3 to 6 mph.

    Low: 68 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 90. Light and variable wind becoming west 5 to 7 mph in the morning.

    High: 90 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 90. Chance of precipitation is 30%.

    High: 90 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms before 4pm. Mostly cloudy, with a high near 78. Light northwest wind.
Tonight
Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 66. Light and variable wind.
Friday
A slight chance of showers before 4pm, then a slight chance of showers after 5pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 84. Calm wind becoming southeast around 6 mph in the morning. Chance of precipitation is 20%.
Friday Night
Mostly clear, then becoming mostly cloudy toward daybreak, with a low around 68. Southeast wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 90. Light and variable wind becoming west 5 to 7 mph in the morning.
Saturday Night
Partly cloudy, with a low around 68.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 67.
Monday
Mostly sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 71.
Tuesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 92.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Godfrey IL
 38.95°N 90.25°W (Elev. 479 ft)
2:25 pm CDT Sep 10, 2026
3pm CDT Sep 10, 2026-6pm CDT Sep 17, 2026
 
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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