National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Jacksonville Municipal Airport (KIJX)

Lat: 39.77°NLon: 90.24°WElev: 614ft.

Overcast

68°F

20°C

Humidity 100%
Wind Speed Calm
Barometer 29.93 in
Dewpoint 68°F (20°C)
Visibility 0.25 mi
Last update 27 Jun 7:35 am CDT
Extended Forecast for

Palmyra IL

Heat Advisory June 28, 12:00pm until July 3, 12:00am
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A 20 percent chance of showers before 11am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 83. Calm wind.

    High: 83 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Partly
    Sunny

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after midnight. Increasing clouds, with a low around 68. Calm wind becoming southeast around 5 mph after midnight.

    Low: 68 °F

    Chance
    T-storms

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 93. Heat index values as high as 103. South wind 6 to 11 mph.

    High: 93 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73. South wind 7 to 10 mph.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 95. South wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 95 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 74.

    Low: 74 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of showers before 11am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 83. Calm wind.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after midnight. Increasing clouds, with a low around 68. Calm wind becoming southeast around 5 mph after midnight.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 93. Heat index values as high as 103. South wind 6 to 11 mph.
Sunday Night
Mostly clear, with a low around 73. South wind 7 to 10 mph.
Monday
Sunny, with a high near 95. South wind 7 to 11 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 74.
Tuesday
Sunny, with a high near 96.
Tuesday Night
Clear, with a low around 74.
Wednesday
Sunny, with a high near 96.
Wednesday Night
Mostly clear, with a low around 74.
Thursday
Sunny, with a high near 95.
Thursday Night
Mostly clear, with a low around 73.
Friday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Palmyra IL
 39.41°N 90°W (Elev. 659 ft)
Last Update:
6:26 am CDT Jun 27, 2026
Forecast Valid:
7am CDT Jun 27, 2026-6pm CDT Jul 3, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation