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.

Mostly Cloudy

74°F

23°C

Humidity 100%
Wind Speed Calm
Barometer 29.92 in
Dewpoint 74°F (23°C)
Visibility 5.00 mi
Last update 26 Jul 4:15 am CDT
Extended Forecast for

Hettick IL

Extreme Heat Warning July 26, 11:00am until July 27, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly before 11am. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 94. Heat index values as high as 114. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 94 °F

    Chance
    T-storms and
    Patchy Fog
    then Partly
    Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 75. Light and variable wind.

    Low: 75 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 95. Heat index values as high as 112. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 95 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. Southwest wind 5 to 8 mph becoming west after midnight.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 90. Northwest wind 5 to 9 mph.

    High: 90 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly before 11am. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 94. Heat index values as high as 114. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 75. Light and variable wind.
Monday
Sunny, with a high near 95. Heat index values as high as 112. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Monday Night
Mostly clear, with a low around 75. Southwest wind 5 to 8 mph becoming west after midnight.
Tuesday
Mostly sunny, with a high near 90. Northwest wind 5 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Clear, with a low around 63.
Thursday
Sunny, with a high near 87.
Thursday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 65.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 65.
Saturday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 86.
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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:
4:31 am CDT Jul 26, 2026
Forecast Valid:
4am CDT Jul 26, 2026-6pm CDT Aug 1, 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