Record Heat for the Intermountain West and Northern Plains; Heavy Rainfall and Severe Weather Threats

Record setting heat is expected over the next several days from the Intermountain West through the northern Plains. Furthermore, fire weather concerns increase with dry and breezy conditions. Meanwhile, heavy rainfall and severe thunderstorm threats for the Ohio/Tennessee Valleys, central Appalachians and Southeast today. The threat shifts to central Gulf Coast and across central Texas this week. Read More >

Current conditions at

Jacksonville Municipal Airport (KIJX)

Lat: 39.77°NLon: 90.24°WElev: 614ft.

Fair

66°F

19°C

Humidity 100%
Wind Speed Calm
Barometer 30.18 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 12 Jul 11:35 pm CDT
Extended Forecast for

South Jacksonville IL

  • Tonight

    Tonight: Clear, with a low around 64. Light north northeast wind.

    Low: 64 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 87. Northeast wind 3 to 8 mph.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 66. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 66 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 69. Calm wind.

    Low: 69 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90. Calm wind.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 70. Calm wind.

    Low: 70 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 64. Light north northeast wind.
Monday
Sunny, with a high near 87. Northeast wind 3 to 8 mph.
Monday Night
Clear, with a low around 66. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 89. Calm wind becoming northeast around 5 mph in the afternoon.
Tuesday Night
Clear, with a low around 69. Calm wind.
Wednesday
Sunny, with a high near 90. Calm wind.
Wednesday Night
Clear, with a low around 70. Calm wind.
Thursday
Sunny, with a high near 91.
Thursday Night
Mostly clear, with a low around 71.
Friday
Sunny, with a high near 90.
Friday Night
Mostly clear, with a low around 72.
Saturday
Sunny, with a high near 90.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
South Jacksonville IL
 39.7°N 90.24°W (Elev. 650 ft)
10:36 pm CDT Jul 12, 2026
11pm CDT Jul 12, 2026-6pm CDT Jul 19, 2026
 
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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