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

Jacksonville Municipal Airport (KIJX)

Lat: 39.77°NLon: 90.24°WElev: 614ft.

Fair

20°F

-7°C

Humidity 76%
Wind Speed S 8 mph
Barometer 30.20 in
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill10°F (-12°C)
Last update 5 Feb 5:55 am CST
Extended Forecast for

South Jacksonville IL

  • Today

    Today: Mostly cloudy, with a high near 37. South southwest wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 37 °F

    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 27. South southwest wind 6 to 9 mph becoming west northwest after midnight. Winds could gust as high as 17 mph.

    Low: 27 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 44. West wind 10 to 18 mph becoming north northwest in the afternoon. Winds could gust as high as 29 mph.

    High: 44 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 20. North northwest wind 6 to 13 mph, with gusts as high as 22 mph.

    Low: 20 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 33. Northeast wind around 7 mph becoming southeast in the afternoon.

    High: 33 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 24. South southeast wind 7 to 11 mph, with gusts as high as 20 mph.

    Low: 24 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 49. South southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 49 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 37. South southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Tonight
Partly cloudy, with a low around 27. South southwest wind 6 to 9 mph becoming west northwest after midnight. Winds could gust as high as 17 mph.
Friday
Partly sunny, with a high near 44. West wind 10 to 18 mph becoming north northwest in the afternoon. Winds could gust as high as 29 mph.
Friday Night
Partly cloudy, with a low around 20. North northwest wind 6 to 13 mph, with gusts as high as 22 mph.
Saturday
Mostly sunny, with a high near 33. Northeast wind around 7 mph becoming southeast in the afternoon.
Saturday Night
Mostly cloudy, with a low around 24. South southeast wind 7 to 11 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 49. South southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 28.
Monday
Sunny, with a high near 57.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Partly sunny, with a high near 59.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 37.
Wednesday
A chance of rain. Cloudy, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Jacksonville IL
 39.7°N 90.24°W (Elev. 650 ft)
Last Update:
5:36 am CST Feb 5, 2026
Forecast Valid:
6am CST Feb 5, 2026-6pm CST Feb 11, 2026
 
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Additional Resources

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Chance of Precipitation