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

22°F

-6°C

Humidity 57%
Wind Speed S 5 mph
Barometer 30.34 in
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 23 Feb 10:15 pm CST
Extended Forecast for

Jacksonville IL

  • Tonight

    Tonight: Partly cloudy, with a low around 18. Light south southwest wind becoming south 6 to 11 mph after midnight. Winds could gust as high as 18 mph.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 52. Breezy, with a south wind 13 to 20 mph, with gusts as high as 31 mph.

    High: 52 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 28. Southwest wind 6 to 11 mph becoming north northwest after midnight. Winds could gust as high as 21 mph.

    Low: 28 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 46. North northwest wind around 6 mph.

    High: 46 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain before midnight, then rain and snow likely between midnight and 3am, then snow likely after 3am. Mostly cloudy, with a low around 31. East northeast wind 5 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Chance Rain
    then
    Rain/Snow
    Likely

  • Thursday

    Thursday: Partly sunny, with a high near 45. East northeast wind 7 to 9 mph becoming north northwest in the afternoon. Winds could gust as high as 15 mph.

    High: 45 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. North northwest wind 5 to 7 mph becoming south in the evening.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 18. Light south southwest wind becoming south 6 to 11 mph after midnight. Winds could gust as high as 18 mph.
Tuesday
Mostly cloudy, with a high near 52. Breezy, with a south wind 13 to 20 mph, with gusts as high as 31 mph.
Tuesday Night
Mostly cloudy, with a low around 28. Southwest wind 6 to 11 mph becoming north northwest after midnight. Winds could gust as high as 21 mph.
Wednesday
Mostly sunny, with a high near 46. North northwest wind around 6 mph.
Wednesday Night
A chance of rain before midnight, then rain and snow likely between midnight and 3am, then snow likely after 3am. Mostly cloudy, with a low around 31. East northeast wind 5 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday
Partly sunny, with a high near 45. East northeast wind 7 to 9 mph becoming north northwest in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Mostly clear, with a low around 29. North northwest wind 5 to 7 mph becoming south in the evening.
Friday
Sunny, with a high near 61.
Friday Night
Mostly clear, with a low around 37.
Saturday
Sunny, with a high near 58.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 42.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 26.
Monday
A chance of rain. Mostly cloudy, with a high near 41.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Jacksonville IL
 39.73°N 90.24°W (Elev. 607 ft)
Last Update:
10:21 pm CST Feb 23, 2026
Forecast Valid:
10pm CST Feb 23, 2026-6pm CST Mar 2, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation