Areas of Excessive Rainfall and Extreme Heat; Monitoring Tropical Storm Erin

Heavy to excessive rainfall over the southern Appalachians may bring areas of flooding Tuesday. Hot to extremely hot temperatures are in place through Tuesday across much of the western U.S. and northern New England. Tropical Storm Erin is forecast to become a Major Hurricane by this weekend as it moves across the central Atlantic Ocean. Monitor future forecasts for any East Coast impacts. Read More >

Hazardous Weather Conditions

Current conditions at

Jacksonville Municipal Airport (KIJX)

Lat: 39.77°NLon: 90.24°WElev: 614ft.

Mostly Cloudy

71°F

22°C

Humidity 98%
Wind Speed W 3 mph
Barometer 29.98 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 12 Aug 6:30 am CDT
Extended Forecast for

5 Miles ENE South Jacksonville IL

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly between 3pm and 5pm.  Partly sunny, with a high near 86. South southeast wind 6 to 8 mph becoming west southwest in the afternoon.

    High: 86 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm.  Mostly cloudy, with a low around 68. West wind around 5 mph becoming calm  in the evening.

    Low: 68 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 82. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64. Light northeast wind.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 83. Calm wind.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67. Light east wind.

    Low: 67 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89. South wind around 6 mph.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Partly sunny, with a high near 86. South southeast wind 6 to 8 mph becoming west southwest in the afternoon.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 68. West wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 82. Calm wind becoming north northwest around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 64. Light northeast wind.
Thursday
Sunny, with a high near 83. Calm wind.
Thursday Night
Mostly clear, with a low around 67. Light east wind.
Friday
Sunny, with a high near 89. South wind around 6 mph.
Friday Night
Mostly clear, with a low around 73.
Saturday
Sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 74.
Sunday
Sunny, with a high near 92.
Sunday Night
Partly cloudy, with a low around 72.
Monday
Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ENE South Jacksonville IL
 39.72°N 90.15°W (Elev. 630 ft)
6:41 am CDT Aug 12, 2025
6am CDT Aug 12, 2025-6pm CDT Aug 18, 2025
 
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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