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Hazardous Weather Conditions

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Mostly Cloudy

28°C

83°F

Humidity 59%
Wind Speed S 24 km/h
Barometer 29.64 in
Dewpoint 19°C (67°F)
Visibility 16 km
Heat Index30°C (86°F)
Last update 4 Jun 6:54 pm CDT
Extended Forecast for

Grafton IL

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly after 2am. Mostly cloudy, with a low around 21. South wind 10 to 16 km/h. Chance of precipitation is 70%.

    Low: 21 °C

    Chance
    T-storms then
    T-storms
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 28. Northwest wind 11 to 16 km/h.

    High: 28 °C

    Chance
    T-storms then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 18. West wind around 11 km/h.

    Low: 18 °C

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 28. Northwest wind 10 to 15 km/h increasing to 18 to 23 km/h in the afternoon. Winds could gust as high as 39 km/h.

    High: 28 °C

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 16. Northwest wind 10 to 16 km/h.

    Low: 16 °C

    Clear

  • Friday

    Friday: Sunny, with a high near 27.

    High: 27 °C

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 17.

    Low: 17 °C

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 27. Chance of precipitation is 20%.

    High: 27 °C

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 17.

    Low: 17 °C

    Partly Cloudy

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly after 2am. Mostly cloudy, with a low around 21. South wind 10 to 16 km/h. Chance of precipitation is 70%.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 28. Northwest wind 11 to 16 km/h.
Wednesday Night
Mostly clear, with a low around 18. West wind around 11 km/h.
Thursday
Sunny, with a high near 28. Northwest wind 10 to 15 km/h increasing to 18 to 23 km/h in the afternoon. Winds could gust as high as 39 km/h.
Thursday Night
Clear, with a low around 16. Northwest wind 10 to 16 km/h.
Friday
Sunny, with a high near 27.
Friday Night
Mostly clear, with a low around 17.
Saturday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 27. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 17.
Sunday
Sunny, with a high near 27.
Sunday Night
Mostly clear, with a low around 16.
Monday
Sunny, with a high near 26.
Monday Night
Mostly clear, with a low around 15.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 27.
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Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Grafton IL
 38.98°N 90.44°W (Elev. 515 m)
Last Update:
5:52 pm CDT Jun 4, 2024
Forecast Valid:
7pm CDT Jun 4, 2024-6pm CDT Jun 11, 2024
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation