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.

Overcast

67°F

19°C

Humidity 87%
Wind Speed E 3 mph
Barometer 29.93 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 30 May 4:15 am CDT
Extended Forecast for

Jacksonville IL

  • Today

    Today: Mostly cloudy, with a high near 84. East wind 5 to 9 mph, with gusts as high as 15 mph.

    High: 84 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 61. East wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 61 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Mostly cloudy, with a high near 81. Southeast wind 7 to 9 mph, with gusts as high as 17 mph.

    High: 81 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 50 percent chance of showers after 1am. Partly cloudy, with a low around 61. East southeast wind 3 to 7 mph.

    Low: 61 °F

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 4pm. Mostly sunny, with a high near 85. Light and variable wind becoming north northeast around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 85 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of thunderstorms before 7pm. Mostly clear, with a low around 59. East northeast wind around 6 mph. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83. East northeast wind 6 to 8 mph.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 84. East wind 5 to 9 mph, with gusts as high as 15 mph.
Tonight
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 61. East wind 8 to 10 mph, with gusts as high as 18 mph.
Sunday
Mostly cloudy, with a high near 81. Southeast wind 7 to 9 mph, with gusts as high as 17 mph.
Sunday Night
A 50 percent chance of showers after 1am. Partly cloudy, with a low around 61. East southeast wind 3 to 7 mph.
Monday
A chance of showers, with thunderstorms also possible after 4pm. Mostly sunny, with a high near 85. Light and variable wind becoming north northeast around 5 mph in the afternoon. Chance of precipitation is 30%.
Monday Night
A chance of thunderstorms before 7pm. Mostly clear, with a low around 59. East northeast wind around 6 mph. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 83. East northeast wind 6 to 8 mph.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Mostly sunny, with a high near 84.
Thursday Night
Partly cloudy, with a low around 63.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 88.
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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:
4:11 am CDT May 30, 2026
Forecast Valid:
4am CDT May 30, 2026-6pm CDT Jun 5, 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