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

77°F

25°C

Humidity 98%
Wind Speed SE 3 mph
Barometer 30.00 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 18 Aug 1:50 am CDT
Extended Forecast for

2 Miles NW Arenzville IL

Heat Advisory August 18, 02:24am until August 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 18, 02:24am until August 18, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Overnight

    Low: 72 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 92. Heat index values as high as 103. South wind 7 to 9 mph, with gusts as high as 15 mph.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. Light south wind. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 7am. Mostly sunny, with a high near 90. Heat index values as high as 100. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 40%.

    High: 90 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 70. Light north wind.

    Low: 70 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. North northeast wind 5 to 9 mph.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64. North northeast wind 5 to 8 mph.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

Overnight
Partly cloudy, with a low around 72. Light southeast wind.
Monday
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 92. Heat index values as high as 103. South wind 7 to 9 mph, with gusts as high as 15 mph.
Monday Night
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. Light south wind. Chance of precipitation is 30%.
Tuesday
A chance of showers, with thunderstorms also possible after 7am. Mostly sunny, with a high near 90. Heat index values as high as 100. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 40%.
Tuesday Night
Partly cloudy, with a low around 70. Light north wind.
Wednesday
Mostly sunny, with a high near 84. North northeast wind 5 to 9 mph.
Wednesday Night
Mostly clear, with a low around 64. North northeast wind 5 to 8 mph.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
Clear, with a low around 63.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 64.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Arenzville IL
 39.91°N 90.4°W (Elev. 459 ft)
Last Update:
1:40 am CDT Aug 18, 2025
Forecast Valid:
2am CDT Aug 18, 2025-6pm CDT Aug 24, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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