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Current conditions at

Jacksonville Municipal Airport (KIJX)

Lat: 39.77°NLon: 90.24°WElev: 614ft.

Fair

85°F

29°C

Humidity 38%
Wind Speed SW 5 mph
Barometer 29.93 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 11 Oct 3:35 pm CDT
Extended Forecast for

Jacksonville IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 84. South southwest wind around 5 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 65. South wind 5 to 7 mph, with gusts as high as 15 mph.

    Low: 65 °F

    Increasing
    Clouds

  • Columbus Day

    Columbus Day: Sunny, with a high near 91. Southwest wind 8 to 14 mph, with gusts as high as 22 mph.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 72. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 72 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92. West southwest wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 92 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Increasing clouds, with a low around 68. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers. High near 79. Calm wind becoming west around 5 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 79 °F

    Showers

  • Wednesday Night

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

    Low: 60 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 1pm, then showers likely. High near 73. Chance of precipitation is 80%.

    High: 73 °F

    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 84. South southwest wind around 5 mph.
Tonight
Increasing clouds, with a low around 65. South wind 5 to 7 mph, with gusts as high as 15 mph.
Columbus Day
Sunny, with a high near 91. Southwest wind 8 to 14 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 72. Southwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 92. West southwest wind 8 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Increasing clouds, with a low around 68. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers. High near 79. Calm wind becoming west around 5 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Thursday
Showers and possibly a thunderstorm before 1pm, then showers likely. High near 73. Chance of precipitation is 80%.
Thursday Night
A 50 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 51.
Friday
Partly sunny, with a high near 63. Breezy.
Friday Night
Partly cloudy, with a low around 37.
Saturday
Sunny, with a high near 59.
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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:
3:36 pm CDT Oct 11, 2026
Forecast Valid:
3pm CDT Oct 11, 2026-6pm CDT Oct 17, 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