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

23°F

-5°C

Humidity 55%
Wind Speed SW 3 mph
Barometer 30.40 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Last update 23 Feb 7:35 pm CST
Extended Forecast for

Alexander IL

  • Tonight

    Tonight: Increasing clouds, with a low around 17. Light and variable wind becoming south 8 to 13 mph after midnight. Winds could gust as high as 18 mph.

    Low: 17 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 51. Breezy, with a south wind 15 to 24 mph, with gusts as high as 39 mph.

    High: 51 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 27. Southwest wind 9 to 14 mph becoming northwest after midnight. Winds could gust as high as 23 mph.

    Low: 27 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 46. Northwest wind 6 to 9 mph becoming north northeast in the afternoon. Winds could gust as high as 15 mph.

    High: 46 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Rain likely before 3am, then snow likely. Mostly cloudy, with a low around 30. East northeast wind 6 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Chance Rain
    then
    Rain/Snow
    Likely

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 45. East northeast wind 8 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 16 mph.

    High: 45 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. North northwest wind 6 to 8 mph becoming south in the evening. Winds could gust as high as 15 mph.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 17. Light and variable wind becoming south 8 to 13 mph after midnight. Winds could gust as high as 18 mph.
Tuesday
Mostly cloudy, with a high near 51. Breezy, with a south wind 15 to 24 mph, with gusts as high as 39 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 27. Southwest wind 9 to 14 mph becoming northwest after midnight. Winds could gust as high as 23 mph.
Wednesday
Mostly sunny, with a high near 46. Northwest wind 6 to 9 mph becoming north northeast in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night
Rain likely before 3am, then snow likely. Mostly cloudy, with a low around 30. East northeast wind 6 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 45. East northeast wind 8 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 16 mph.
Thursday Night
Mostly clear, with a low around 29. North northwest wind 6 to 8 mph becoming south in the evening. Winds could gust as high as 15 mph.
Friday
Sunny, with a high near 61.
Friday Night
Mostly clear, with a low around 37.
Saturday
Sunny, with a high near 58.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 42.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 26.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alexander IL
 39.72°N 90.04°W (Elev. 650 ft)
Last Update:
7:32 pm CST Feb 23, 2026
Forecast Valid:
7pm CST Feb 23, 2026-6pm CST Mar 2, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation