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.

Thunderstorm in Vicinity

73°F

23°C

Humidity 100%
Wind Speed E 13 mph
Barometer 29.99 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 14 Aug 6:15 am CDT
Extended Forecast for

Lynnville IL

Heat Advisory August 14, 06:40am until August 16, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 14, 06:40am until August 16, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • Today

    High: 92 °F

    Chance
    T-storms then
    Partly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 3am. Partly cloudy, with a low around 74. East wind 5 to 8 mph.

    Low: 74 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms before 11am, then a chance of showers between 11am and noon. Partly sunny, with a high near 93. Heat index values as high as 107. Southwest wind 7 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 40%.

    High: 93 °F

    Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 74. West southwest wind 3 to 7 mph.

    Low: 74 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 90. West northwest wind 3 to 8 mph.

    High: 90 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 69. North wind 5 to 8 mph.

    Low: 69 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 83. North wind 5 to 7 mph.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly before 7am. Partly sunny, with a high near 92. Heat index values as high as 107. Southeast wind 5 to 7 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 3am. Partly cloudy, with a low around 74. East wind 5 to 8 mph.
Saturday
A chance of showers and thunderstorms before 11am, then a chance of showers between 11am and noon. Partly sunny, with a high near 93. Heat index values as high as 107. Southwest wind 7 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 74. West southwest wind 3 to 7 mph.
Sunday
Partly sunny, with a high near 90. West northwest wind 3 to 8 mph.
Sunday Night
Partly cloudy, with a low around 69. North wind 5 to 8 mph.
Monday
Mostly sunny, with a high near 83. North wind 5 to 7 mph.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Partly sunny, with a high near 89.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lynnville IL
 39.69°N 90.36°W (Elev. 604 ft)
Last Update:
6:36 am CDT Aug 14, 2026
Forecast Valid:
6am CDT Aug 14, 2026-6pm CDT Aug 20, 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