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

78°F

26°C

Humidity 34%
Wind Speed S 9 mph
Barometer 29.84 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 21 Mar 12:55 pm CDT
Extended Forecast for

Jacksonville IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 84. South southwest wind around 10 mph, with gusts as high as 15 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. South southwest wind 7 to 13 mph, with gusts as high as 23 mph.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 80. Breezy, with a southwest wind 10 to 20 mph becoming north in the afternoon. Winds could gust as high as 30 mph.

    High: 80 °F

    Mostly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 35. Breezy, with a north wind 10 to 20 mph, with gusts as high as 31 mph.

    Low: 35 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Clear

  • Monday

    Monday: Mostly sunny, with a high near 55. North northeast wind 7 to 9 mph, with gusts as high as 16 mph.

    High: 55 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38. East southeast wind around 7 mph, with gusts as high as 15 mph.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 61. South wind 7 to 9 mph, with gusts as high as 16 mph.

    High: 61 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 68.

    High: 68 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 84. South southwest wind around 10 mph, with gusts as high as 15 mph.
Tonight
Mostly clear, with a low around 63. South southwest wind 7 to 13 mph, with gusts as high as 23 mph.
Sunday
Partly sunny, with a high near 80. Breezy, with a southwest wind 10 to 20 mph becoming north in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 35. Breezy, with a north wind 10 to 20 mph, with gusts as high as 31 mph.
Monday
Mostly sunny, with a high near 55. North northeast wind 7 to 9 mph, with gusts as high as 16 mph.
Monday Night
Mostly cloudy, with a low around 38. East southeast wind around 7 mph, with gusts as high as 15 mph.
Tuesday
Partly sunny, with a high near 61. South wind 7 to 9 mph, with gusts as high as 16 mph.
Tuesday Night
Mostly cloudy, with a low around 42.
Wednesday
Mostly cloudy, with a high near 68.
Wednesday Night
Mostly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
A chance of rain. Partly cloudy, with a low around 39.
Friday
Partly sunny, with a high near 53.
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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:
12:36 pm CDT Mar 21, 2026
Forecast Valid:
1pm CDT Mar 21, 2026-6pm CDT Mar 27, 2026
 
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Additional Resources

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