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

67°F

19°C

Humidity 43%
Wind Speed NW 10 mph
Barometer 29.85 in
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 17 May 7:55 pm CDT
Extended Forecast for

Jacksonville IL

  • Tonight

    Tonight: Mostly clear, with a low around 50. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 77. North wind 5 to 7 mph becoming calm.

    High: 77 °F

    Sunny

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm between 1am and 4am, then showers and thunderstorms likely after 4am. Increasing clouds, with a low around 58. East wind 6 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 58 °F

    Partly Cloudy
    then T-storms
    Likely

  • Monday

    Monday: Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm. High near 73. East wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 73 °F

    T-storms then
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 62. East southeast wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 62 °F

    T-storms then
    Showers

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 1pm. High near 74. Southeast wind around 14 mph becoming west in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    High: 74 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 52. Northwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 52 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 40 percent chance of showers. Mostly cloudy, with a high near 60.

    High: 60 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 50. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
Sunny, with a high near 77. North wind 5 to 7 mph becoming calm.
Sunday Night
Showers likely and possibly a thunderstorm between 1am and 4am, then showers and thunderstorms likely after 4am. Increasing clouds, with a low around 58. East wind 6 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm. High near 73. East wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and possibly a thunderstorm. Low around 62. East southeast wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Tuesday
Showers, with thunderstorms also possible after 1pm. High near 74. Southeast wind around 14 mph becoming west in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Tuesday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 52. Northwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Sunny, with a high near 67.
Thursday Night
Mostly clear, with a low around 47.
Friday
Mostly sunny, with a high near 71.
Friday Night
A chance of showers. Mostly cloudy, with a low around 54.
Saturday
A chance of showers. Partly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Jacksonville IL
 39.73°N 90.24°W (Elev. 607 ft)
Last Update:
6:13 pm CDT May 17, 2025
Forecast Valid:
8pm CDT May 17, 2025-6pm CDT May 24, 2025
 
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