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

56°F

13°C

Humidity 80%
Wind Speed SW 15 G 20 mph
Barometer 29.55 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 18 Feb 5:35 am CST
Extended Forecast for

South Jacksonville IL

  • Today

    Today: Sunny, with a high near 67. West southwest wind 8 to 17 mph, with gusts as high as 28 mph.

    High: 67 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 46. Southwest wind 5 to 7 mph becoming south southeast after midnight.

    Low: 46 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 68. Southeast wind 8 to 16 mph becoming southwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 50%.

    High: 68 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 33. Breezy, with a west wind 13 to 21 mph, with gusts as high as 30 mph.

    Low: 33 °F

    Mostly Clear
    then Partly
    Cloudy and
    Breezy

  • Friday

    Friday: Sunny, with a high near 44. West wind 9 to 18 mph, with gusts as high as 29 mph.

    High: 44 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 25. North wind around 7 mph.

    Low: 25 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of snow. Partly sunny, with a high near 38. Northwest wind 7 to 11 mph, with gusts as high as 18 mph.

    High: 38 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow before midnight. Partly cloudy, with a low around 20.

    Low: 20 °F

    Chance Snow
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 33.

    High: 33 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 67. West southwest wind 8 to 17 mph, with gusts as high as 28 mph.
Tonight
Increasing clouds, with a low around 46. Southwest wind 5 to 7 mph becoming south southeast after midnight.
Thursday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 68. Southeast wind 8 to 16 mph becoming southwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 50%.
Thursday Night
Mostly clear, with a low around 33. Breezy, with a west wind 13 to 21 mph, with gusts as high as 30 mph.
Friday
Sunny, with a high near 44. West wind 9 to 18 mph, with gusts as high as 29 mph.
Friday Night
Mostly clear, with a low around 25. North wind around 7 mph.
Saturday
A 30 percent chance of snow. Partly sunny, with a high near 38. Northwest wind 7 to 11 mph, with gusts as high as 18 mph.
Saturday Night
A 30 percent chance of snow before midnight. Partly cloudy, with a low around 20.
Sunday
Sunny, with a high near 33.
Sunday Night
Mostly clear, with a low around 16.
Monday
Sunny, with a high near 34.
Monday Night
Mostly clear, with a low around 17.
Tuesday
Mostly sunny, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Jacksonville IL
 39.7°N 90.24°W (Elev. 650 ft)
Last Update:
5:36 am CST Feb 18, 2026
Forecast Valid:
5am CST Feb 18, 2026-6pm CST Feb 24, 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