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

40°F

4°C

Humidity 66%
Wind Speed Calm
Barometer 30.18 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 18 Apr 11:35 pm CDT
Extended Forecast for

4 Miles WSW Palmyra IL

  • Tonight

    Tonight: Areas of frost after 4am. Otherwise, clear, with a low around 34. West wind around 6 mph.

    Low: 34 °F

    Areas Frost

  • Sunday

    Sunday: Areas of frost before 8am. Otherwise, sunny, with a high near 62. Breezy, with a west wind 6 to 11 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 62 °F

    Areas Frost
    then Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 33. Northeast wind 5 to 10 mph.

    Low: 33 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 64. East wind 5 to 8 mph becoming south in the afternoon.

    High: 64 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46. Southeast wind 8 to 10 mph.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 54.

    Low: 54 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Tonight
Areas of frost after 4am. Otherwise, clear, with a low around 34. West wind around 6 mph.
Sunday
Areas of frost before 8am. Otherwise, sunny, with a high near 62. Breezy, with a west wind 6 to 11 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 31 mph.
Sunday Night
Mostly clear, with a low around 33. Northeast wind 5 to 10 mph.
Monday
Sunny, with a high near 64. East wind 5 to 8 mph becoming south in the afternoon.
Monday Night
Mostly clear, with a low around 46. Southeast wind 8 to 10 mph.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. Chance of precipitation is 70%.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 44.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Palmyra IL
 39.41°N 90.05°W (Elev. 617 ft)
Last Update:
10:46 pm CDT Apr 18, 2026
Forecast Valid:
11pm CDT Apr 18, 2026-6pm CDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation