National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Areas of Hazardous Weather This Weekend

A series of cold fronts from North Pacific storms will bring periods of gusty winds, low elevation rainfall, and high elevation snow to the Pacific Northwest this weekend into next week. Heavy to excessive rainfall may produce areas of flooding over southern Texas this weekend. Read More >

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

39°F

4°C

Humidity 86%
Wind Speed Calm
Barometer 30.20 in (1022.8 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 7 Nov 7:54 pm CST
Extended Forecast for

4 Miles WNW Grafton IL

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, clear, with a low around 36. Calm wind becoming southwest around 5 mph after midnight.

    Low: 36 °F

    Clear then
    Patchy Fog

  • Sunday

    Sunday: Areas of fog before 8am. Otherwise, sunny, with a high near 61. Southwest wind 5 to 10 mph becoming west in the afternoon.

    High: 61 °F

    Areas Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40. Northwest wind around 6 mph becoming calm in the evening.

    Low: 40 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 65. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 46. Southwest wind 3 to 6 mph.

    Low: 46 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: A 30 percent chance of rain after noon. Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, clear, with a low around 36. Calm wind becoming southwest around 5 mph after midnight.
Sunday
Areas of fog before 8am. Otherwise, sunny, with a high near 61. Southwest wind 5 to 10 mph becoming west in the afternoon.
Sunday Night
Mostly clear, with a low around 40. Northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 65. Calm wind becoming southwest around 6 mph in the afternoon.
Monday Night
Clear, with a low around 46. Southwest wind 3 to 6 mph.
Tuesday
Sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 47.
Veterans Day
A 30 percent chance of rain after noon. Partly sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 53.
Thursday Night
Partly cloudy, with a low around 35.
Friday
Sunny, with a high near 51.
Friday Night
Mostly clear, with a low around 35.
Saturday
Sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Grafton IL
 38.98°N 90.5°W (Elev. 620 ft)
Last Update:
4:56 pm CST Nov 7, 2026
Forecast Valid:
8pm CST Nov 7, 2026-6pm CST Nov 14, 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