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

21°F

-6°C

Humidity 80%
Wind Speed W 3 mph
Barometer 30.15 in
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 21 Feb 4:35 am CST
Extended Forecast for

Jacksonville IL

  • Today

    Today: A chance of flurries between 8am and 11am. Cloudy, then gradual clearing during the afternoon, with a high near 37. Northwest wind 7 to 15 mph, with gusts as high as 21 mph.

    High: 37 °F

    Chance
    Flurries

  • Tonight

    Tonight: Partly cloudy, with a low around 18. Wind chill values between 4 and 14. Northwest wind 11 to 17 mph, with gusts as high as 28 mph.

    Low: 18 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 30. Wind chill values between 2 and 12. Blustery, with a northwest wind 17 to 22 mph, with gusts as high as 31 mph.

    High: 30 °F

    Mostly Sunny
    and Blustery

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 13. Wind chill values between -1 and 9. Northwest wind 15 to 18 mph, with gusts as high as 28 mph.

    Low: 13 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 32. Northwest wind 7 to 14 mph, with gusts as high as 23 mph.

    High: 32 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 17. Calm wind becoming south 5 to 8 mph after midnight. Winds could gust as high as 15 mph.

    Low: 17 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 50. South southwest wind 9 to 15 mph, with gusts as high as 24 mph.

    High: 50 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

Detailed Forecast

Today
A chance of flurries between 8am and 11am. Cloudy, then gradual clearing during the afternoon, with a high near 37. Northwest wind 7 to 15 mph, with gusts as high as 21 mph.
Tonight
Partly cloudy, with a low around 18. Wind chill values between 4 and 14. Northwest wind 11 to 17 mph, with gusts as high as 28 mph.
Sunday
Mostly sunny, with a high near 30. Wind chill values between 2 and 12. Blustery, with a northwest wind 17 to 22 mph, with gusts as high as 31 mph.
Sunday Night
Partly cloudy, with a low around 13. Wind chill values between -1 and 9. Northwest wind 15 to 18 mph, with gusts as high as 28 mph.
Monday
Sunny, with a high near 32. Northwest wind 7 to 14 mph, with gusts as high as 23 mph.
Monday Night
Increasing clouds, with a low around 17. Calm wind becoming south 5 to 8 mph after midnight. Winds could gust as high as 15 mph.
Tuesday
Partly sunny, with a high near 50. South southwest wind 9 to 15 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
Partly sunny, with a high near 57.
Wednesday Night
A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 49.
Thursday Night
Mostly clear, with a low around 29.
Friday
Sunny, with a high near 60.
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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:
3:36 am CST Feb 21, 2026
Forecast Valid:
4am CST Feb 21, 2026-6pm CST Feb 27, 2026
 
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Additional Resources

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