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

19°F

-7°C

Humidity 83%
Wind Speed N 3 mph
Barometer 30.16 in
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 9 Feb 5:15 am CST
Extended Forecast for

Jacksonville IL

  • Today

    Today: Mostly sunny, with a high near 49. Light and variable wind becoming south 5 to 7 mph in the morning.

    High: 49 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 40. South southeast wind 8 to 11 mph becoming west after midnight. Winds could gust as high as 21 mph.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 52. North northwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 52 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 28. North northwest wind around 7 mph, with gusts as high as 15 mph.

    Low: 28 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47. North northwest wind 3 to 6 mph.

    High: 47 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 30. Calm wind becoming east southeast around 5 mph after midnight.

    Low: 30 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of rain after noon. Cloudy, with a high near 42. East southeast wind 5 to 7 mph.

    High: 42 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A chance of rain and snow. Cloudy, with a low around 29. Chance of precipitation is 40%.

    Low: 29 °F

    Chance
    Rain/Snow

  • Friday

    Friday: Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 49. Light and variable wind becoming south 5 to 7 mph in the morning.
Tonight
Mostly clear, with a low around 40. South southeast wind 8 to 11 mph becoming west after midnight. Winds could gust as high as 21 mph.
Tuesday
Sunny, with a high near 52. North northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 28. North northwest wind around 7 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 47. North northwest wind 3 to 6 mph.
Wednesday Night
Mostly cloudy, with a low around 30. Calm wind becoming east southeast around 5 mph after midnight.
Thursday
A 30 percent chance of rain after noon. Cloudy, with a high near 42. East southeast wind 5 to 7 mph.
Thursday Night
A chance of rain and snow. Cloudy, with a low around 29. Chance of precipitation is 40%.
Friday
Mostly cloudy, with a high near 41.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 29.
Saturday
A chance of rain. Mostly cloudy, with a high near 43.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 30.
Sunday
Sunny, with a high near 44.
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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:
3:17 am CST Feb 9, 2026
Forecast Valid:
5am CST Feb 9, 2026-6pm CST Feb 15, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation