Hazardous Weather Conditions

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

76°F

24°C

Humidity 69%
Wind Speed SW 12 mph
Barometer 29.84 in (1009.9 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 10 Mar 10:54 am CDT
Extended Forecast for

3 Miles WSW Greenfield IL

  • Today

    Today: Sunny, with a high near 83. Breezy, with a south wind 13 to 20 mph, with gusts as high as 29 mph.

    High: 83 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am.  Low around 48. South wind 14 to 16 mph, with gusts as high as 30 mph.  Chance of precipitation is 90%.

    Low: 48 °F

    Chance
    T-storms then
    T-storms

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm before 2pm, then a slight chance of rain between 2pm and 3pm.  Temperature falling to around 47 by 4pm. Breezy, with a northwest wind 15 to 23 mph, with gusts as high as 32 mph.  Chance of precipitation is 100%.

    High: 64 °F

    Breezy. Rain
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming clear, with a low around 29. Northwest wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 28 mph.

    Low: 29 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 54. Light and variable wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph.

    High: 54 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 42. Breezy.

    Low: 42 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Friday

    Friday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 83. Breezy, with a south wind 13 to 20 mph, with gusts as high as 29 mph.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am. Low around 48. South wind 14 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Wednesday
Rain and possibly a thunderstorm before 2pm, then a slight chance of rain between 2pm and 3pm. Temperature falling to around 47 by 4pm. Breezy, with a northwest wind 15 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 100%.
Wednesday Night
Mostly cloudy, then gradually becoming clear, with a low around 29. Northwest wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 28 mph.
Thursday
Sunny, with a high near 54. Light and variable wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 42. Breezy.
Friday
Mostly cloudy, with a high near 59.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
Partly sunny, with a high near 67.
Saturday Night
A 20 percent chance of rain after 1am. Partly cloudy, with a low around 44.
Sunday
Rain likely. Cloudy, with a high near 58. Breezy. Chance of precipitation is 70%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 19. Blustery. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 35.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Greenfield IL
 39.33°N 90.26°W (Elev. 551 ft)
10:51 am CDT Mar 10, 2026
11am CDT Mar 10, 2026-6pm CDT Mar 16, 2026
 
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Additional Resources

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Hourly Weather Forecast

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