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.

Partly Cloudy

32°F

0°C

Humidity 34%
Wind Speed SW 12 mph
Barometer 30.29 in
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 20 Jan 1:15 pm CST
Extended Forecast for

Winchester IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 34. South wind 8 to 14 mph, with gusts as high as 21 mph.

    High: 34 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. South southeast wind 8 to 14 mph becoming west southwest after midnight. Winds could gust as high as 24 mph.

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 40. West wind 10 to 13 mph, with gusts as high as 22 mph.

    High: 40 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 19. Southwest wind 5 to 10 mph becoming northwest in the evening. Winds could gust as high as 21 mph.

    Low: 19 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 32. Northwest wind 3 to 6 mph.

    High: 32 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 2. Light north northwest wind becoming north 9 to 14 mph in the evening. Winds could gust as high as 23 mph.

    Low: 2 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy and cold, with a high near 7. North wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 7 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -2.

    Low: -2 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of snow after noon. Cloudy, with a high near 12.

    High: 12 °F

    Cloudy then
    Chance Snow

Detailed Forecast

This Afternoon
Partly sunny, with a high near 34. South wind 8 to 14 mph, with gusts as high as 21 mph.
Tonight
Mostly cloudy, with a low around 27. South southeast wind 8 to 14 mph becoming west southwest after midnight. Winds could gust as high as 24 mph.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 40. West wind 10 to 13 mph, with gusts as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 19. Southwest wind 5 to 10 mph becoming northwest in the evening. Winds could gust as high as 21 mph.
Thursday
Partly sunny, with a high near 32. Northwest wind 3 to 6 mph.
Thursday Night
Mostly cloudy, with a low around 2. Light north northwest wind becoming north 9 to 14 mph in the evening. Winds could gust as high as 23 mph.
Friday
Mostly cloudy and cold, with a high near 7. North wind 11 to 14 mph, with gusts as high as 23 mph.
Friday Night
Mostly cloudy, with a low around -2.
Saturday
A 30 percent chance of snow after noon. Cloudy, with a high near 12.
Saturday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 4.
Sunday
Partly sunny, with a high near 19.
Sunday Night
Partly cloudy, with a low around 2.
Monday
Mostly sunny, with a high near 23.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winchester IL
 39.62°N 90.44°W (Elev. 499 ft)
Last Update:
1:11 pm CST Jan 20, 2026
Forecast Valid:
1pm CST Jan 20, 2026-6pm CST Jan 26, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation