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.

Fair

89°F

32°C

Humidity 68%
Wind Speed S 13 G 20 mph
Barometer 29.90 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 29 Jun 5:35 pm CDT
Extended Forecast for

Hettick IL

Heat Advisory June 29, 05:57pm until July 3, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 29, 05:57pm until July 3, 10:00pm

    NOW until 10:00pm Fri

    Heat Advisory

  • Tonight

    Low: 74 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 96. Heat index values as high as 106. Southwest wind 6 to 11 mph.

    High: 96 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 74. South wind 5 to 7 mph.

    Low: 74 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Heat index values as high as 105. Southwest wind 5 to 8 mph.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 75. South wind 3 to 8 mph.

    Low: 75 °F

    Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.

    Low: 74 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.

    High: 93 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 74. South wind 6 to 11 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 96. Heat index values as high as 106. Southwest wind 6 to 11 mph.
Tuesday Night
Clear, with a low around 74. South wind 5 to 7 mph.
Wednesday
Sunny, with a high near 96. Heat index values as high as 105. Southwest wind 5 to 8 mph.
Wednesday Night
Clear, with a low around 75. South wind 3 to 8 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Friday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Friday Night
Partly cloudy, with a low around 72.
Independence Day
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hettick IL
 39.34°N 90.03°W (Elev. 551 ft)
Last Update:
4:46 pm CDT Jun 29, 2026
Forecast Valid:
5pm CDT Jun 29, 2026-6pm CDT Jul 6, 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