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

Hazardous Weather Conditions

Current conditions at

Jacksonville Municipal Airport (KIJX)

Lat: 39.77°NLon: 90.24°WElev: 614ft.

Partly Cloudy

66°F

19°C

Humidity 31%
Wind Speed S 10 G 18 mph
Barometer 30.06 in
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 29 Mar 4:35 pm CDT
Extended Forecast for

Jacksonville IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. South wind 10 to 13 mph, with gusts as high as 23 mph.

    Low: 55 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 83. Southwest wind 11 to 16 mph, with gusts as high as 25 mph.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 64. South southwest wind 11 to 16 mph, with gusts as high as 28 mph.

    Low: 64 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers, then showers and thunderstorms likely after 1pm. Partly sunny, with a high near 83. Breezy, with a south southwest wind 17 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Breezy.
    Chance
    Showers then
    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 48. West southwest wind 11 to 13 mph becoming north after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 48 °F

    T-storms

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 1pm. Cloudy, with a high near 57. East northeast wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 57 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers. Low around 45. East northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

    Low: 45 °F

    Showers

  • Thursday

    Thursday: Showers. High near 60. Chance of precipitation is 80%.

    High: 60 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.

    Low: 44 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 55. South wind 10 to 13 mph, with gusts as high as 23 mph.
Monday
Sunny, with a high near 83. Southwest wind 11 to 16 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 64. South southwest wind 11 to 16 mph, with gusts as high as 28 mph.
Tuesday
A chance of showers, then showers and thunderstorms likely after 1pm. Partly sunny, with a high near 83. Breezy, with a south southwest wind 17 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm. Low around 48. West southwest wind 11 to 13 mph becoming north after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers likely, with thunderstorms also possible after 1pm. Cloudy, with a high near 57. East northeast wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Showers. Low around 45. East northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Thursday
Showers. High near 60. Chance of precipitation is 80%.
Thursday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Friday
A 40 percent chance of showers after 1pm. Partly sunny, with a high near 70.
Friday Night
A chance of showers. Mostly cloudy, with a low around 54.
Saturday
Showers likely. Mostly cloudy, with a high near 68.
Saturday Night
Showers likely. Mostly cloudy, with a low around 43.
Sunday
A chance of showers. Partly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
Jacksonville IL
 39.73°N 90.24°W (Elev. 607 ft)
Last Update:
2:51 pm CDT Mar 29, 2026
Forecast Valid:
5pm CDT Mar 29, 2026-6pm CDT Apr 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation