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

62°F

17°C

Humidity 65%
Wind Speed E 8 mph
Barometer 30.04 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 22 May 2:15 am CDT
Extended Forecast for

Jacksonville IL

  • Overnight

    Overnight: Cloudy, with a low around 56. East wind around 8 mph, with gusts as high as 16 mph.

    Low: 56 °F

    Cloudy

  • Friday

    Friday: Cloudy, with a high near 68. East northeast wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 68 °F

    Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of showers before 3am. Cloudy, with a low around 56. East northeast wind 5 to 7 mph becoming calm in the evening.

    Low: 56 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 78. Light and variable wind.

    High: 78 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Showers likely, mainly after 1am. Increasing clouds, with a low around 58. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 58 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: A 50 percent chance of showers. Cloudy, then gradually becoming mostly sunny, with a high near 80. Light and variable wind.

    High: 80 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Partly Cloudy

  • Memorial Day

    Memorial Day: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Cloudy, with a low around 56. East wind around 8 mph, with gusts as high as 16 mph.
Friday
Cloudy, with a high near 68. East northeast wind 9 to 11 mph, with gusts as high as 18 mph.
Friday Night
A 20 percent chance of showers before 3am. Cloudy, with a low around 56. East northeast wind 5 to 7 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 78. Light and variable wind.
Saturday Night
Showers likely, mainly after 1am. Increasing clouds, with a low around 58. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A 50 percent chance of showers. Cloudy, then gradually becoming mostly sunny, with a high near 80. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 57. Calm wind.
Memorial Day
Mostly sunny, with a high near 83.
Monday Night
Mostly cloudy, with a low around 60.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 63.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 84.
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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:
2:16 am CDT May 22, 2026
Forecast Valid:
2am CDT May 22, 2026-6pm CDT May 28, 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