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

48°F

9°C

Humidity 86%
Wind Speed E 9 mph
Barometer 29.94 in
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 26 Apr 2:55 am CDT
Extended Forecast for

Jacksonville IL

  • Overnight

    Overnight: Partly cloudy, with a low around 49. East wind around 7 mph, with gusts as high as 15 mph.

    Low: 49 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 78. Southeast wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 78 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 60. Southeast wind 10 to 15 mph, with gusts as high as 26 mph.

    Low: 60 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Monday

    Monday: Showers and possibly a thunderstorm, mainly before 1pm, then showers and thunderstorms after 1pm. High near 80. Breezy, with a south wind 17 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 80 °F

    Breezy.
    Showers then
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 49. South southwest wind 10 to 18 mph becoming west after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 50%.

    Low: 49 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 67. West wind around 9 mph, with gusts as high as 16 mph.

    High: 67 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers before 1am. Partly cloudy, with a low around 45. North northwest wind 6 to 9 mph, with gusts as high as 16 mph.

    Low: 45 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 49. East wind around 7 mph, with gusts as high as 15 mph.
Sunday
Mostly sunny, with a high near 78. Southeast wind 8 to 10 mph, with gusts as high as 18 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 60. Southeast wind 10 to 15 mph, with gusts as high as 26 mph.
Monday
Showers and possibly a thunderstorm, mainly before 1pm, then showers and thunderstorms after 1pm. High near 80. Breezy, with a south wind 17 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Monday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 49. South southwest wind 10 to 18 mph becoming west after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 50%.
Tuesday
Mostly sunny, with a high near 67. West wind around 9 mph, with gusts as high as 16 mph.
Tuesday Night
A 30 percent chance of showers before 1am. Partly cloudy, with a low around 45. North northwest wind 6 to 9 mph, with gusts as high as 16 mph.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 66.
Thursday Night
Mostly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 67.
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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:
3:01 am CDT Apr 26, 2026
Forecast Valid:
3am CDT Apr 26, 2026-6pm CDT May 2, 2026
 
Forecast Discussion
 
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Additional Resources

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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