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 60%
Wind Speed S 5 mph
Barometer 30.32 in
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 23 Feb 10:55 pm CST
Extended Forecast for

Chambersburg IL

  • Tonight

    Tonight: Partly cloudy, with a low around 19. Calm wind becoming south 5 to 9 mph after midnight.

    Low: 19 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 54. South wind 10 to 18 mph becoming southwest in the afternoon. Winds could gust as high as 29 mph.

    High: 54 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Cloudy, then gradually becoming partly cloudy, with a low around 28. Southwest wind 5 to 10 mph becoming north after midnight.

    Low: 28 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47. Light and variable wind becoming north around 6 mph in the morning.

    High: 47 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain before 9pm, then rain and snow likely between 9pm and 3am, then rain likely after 3am. Mostly cloudy, with a low around 30. Northeast wind 5 to 7 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: A 20 percent chance of rain before noon. Mostly sunny, with a high near 46.

    High: 46 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 19. Calm wind becoming south 5 to 9 mph after midnight.
Tuesday
Mostly cloudy, with a high near 54. South wind 10 to 18 mph becoming southwest in the afternoon. Winds could gust as high as 29 mph.
Tuesday Night
Cloudy, then gradually becoming partly cloudy, with a low around 28. Southwest wind 5 to 10 mph becoming north after midnight.
Wednesday
Mostly sunny, with a high near 47. Light and variable wind becoming north around 6 mph in the morning.
Wednesday Night
A chance of rain before 9pm, then rain and snow likely between 9pm and 3am, then rain likely after 3am. Mostly cloudy, with a low around 30. Northeast wind 5 to 7 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
A 20 percent chance of rain before noon. Mostly sunny, with a high near 46.
Thursday Night
Mostly clear, with a low around 30.
Friday
Sunny, with a high near 64.
Friday Night
Mostly clear, with a low around 36.
Saturday
Sunny, with a high near 58.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 42. Chance of precipitation is 40%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 25. Chance of precipitation is 40%.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 41. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chambersburg IL
 39.83°N 90.67°W (Elev. 463 ft)
Last Update:
9:11 pm CST Feb 23, 2026
Forecast Valid:
11pm CST Feb 23, 2026-6pm CST Mar 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation