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.

Fair

45°F

7°C

Humidity 52%
Wind Speed NE 7 mph
Barometer 30.26 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 19 Apr 11:15 pm CDT
Extended Forecast for

Jacksonville IL

Frost Advisory April 20, 01:00am until April 20, 08:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 35. Northeast wind 5 to 7 mph, with gusts as high as 17 mph.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 65. Light and variable wind becoming south southeast 5 to 8 mph in the morning.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 49. South southeast wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78. Southwest wind 10 to 17 mph, with gusts as high as 26 mph.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 57. Southwest wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 57 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 79. West southwest wind around 9 mph, with gusts as high as 15 mph.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. South wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 82. Breezy.

    High: 82 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 59. Chance of precipitation is 80%.

    Low: 59 °F

    Chance
    T-storms then
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 35. Northeast wind 5 to 7 mph, with gusts as high as 17 mph.
Monday
Sunny, with a high near 65. Light and variable wind becoming south southeast 5 to 8 mph in the morning.
Monday Night
Mostly clear, with a low around 49. South southeast wind 8 to 11 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 78. Southwest wind 10 to 17 mph, with gusts as high as 26 mph.
Tuesday Night
Partly cloudy, with a low around 57. Southwest wind 10 to 13 mph, with gusts as high as 22 mph.
Wednesday
Sunny, with a high near 79. West southwest wind around 9 mph, with gusts as high as 15 mph.
Wednesday Night
Mostly clear, with a low around 58. South wind 7 to 10 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 82. Breezy.
Thursday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 59. Chance of precipitation is 80%.
Friday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 46.
Sunday
Partly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Jacksonville IL
 39.73°N 90.24°W (Elev. 607 ft)
Last Update:
10:36 pm CDT Apr 19, 2026
Forecast Valid:
11pm CDT Apr 19, 2026-6pm CDT Apr 26, 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