Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

82°F

28°C

Humidity 37%
Wind Speed W 9 mph
Barometer 29.93 in (1013.2 mb)
Dewpoint 53°F (12°C)
Visibility 9.00 mi
Heat Index81°F (27°C)
Last update 7 Oct 11:54 am CDT
Extended Forecast for

2 Miles NNE Grafton IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 88. West wind 8 to 11 mph.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 57. Northwest wind 5 to 7 mph becoming calm  after midnight.

    Low: 57 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 83. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59. Light and variable wind becoming southeast around 6 mph in the evening.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 88. South wind 6 to 10 mph.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am.  Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers before 1pm.  Mostly sunny, with a high near 82.

    High: 82 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 88. West wind 8 to 11 mph.
Tonight
Clear, with a low around 57. Northwest wind 5 to 7 mph becoming calm after midnight.
Thursday
Sunny, with a high near 83. Calm wind becoming northeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 59. Light and variable wind becoming southeast around 6 mph in the evening.
Friday
Sunny, with a high near 88. South wind 6 to 10 mph.
Friday Night
Clear, with a low around 60.
Saturday
Sunny, with a high near 88.
Saturday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 60.
Sunday
A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 58.
Columbus Day
Mostly sunny, with a high near 85.
Monday Night
A 20 percent chance of showers. Mostly clear, with a low around 60.
Tuesday
A 30 percent chance of showers. Sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Grafton IL
 39°N 90.41°W (Elev. 682 ft)
11:26 am CDT Oct 7, 2026
12pm CDT Oct 7, 2026-6pm CDT Oct 13, 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