National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Sparta Community-Hunter Field Airport (KSAR)

Lat: 38.15°NLon: 89.7°WElev: 528ft.

Fair

94°F

34°C

Humidity 48%
Wind Speed S 7 mph
Barometer 30.11 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 16 Aug 11:35 am CDT
Extended Forecast for

Walsh IL

Heat Advisory August 16, 12:03pm until August 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 16, 12:03pm until August 18, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • This Afternoon

    High: 98 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 75. Southeast wind 3 to 5 mph.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Scattered showers and thunderstorms, mainly after 5pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 107. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 98 °F

    Sunny then
    Scattered
    T-storms

  • Sunday Night

    Sunday Night: Scattered showers and thunderstorms before 7pm. Mostly clear, with a low around 76. Calm wind. Chance of precipitation is 30%.

    Low: 76 °F

    Scattered
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 99. Light south wind.

    High: 99 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 73. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 98. Heat index values as high as 105. South wind around 5 mph.
Tonight
Mostly clear, with a low around 75. Southeast wind 3 to 5 mph.
Sunday
Scattered showers and thunderstorms, mainly after 5pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 107. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 30%.
Sunday Night
Scattered showers and thunderstorms before 7pm. Mostly clear, with a low around 76. Calm wind. Chance of precipitation is 30%.
Monday
Sunny and hot, with a high near 99. Light south wind.
Monday Night
Mostly clear, with a low around 76.
Tuesday
Sunny and hot, with a high near 99.
Tuesday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 66.
Friday
Sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Walsh IL
 38.1°N 89.86°W (Elev. 499 ft)
Last Update:
10:36 am CDT Aug 16, 2025
Forecast Valid:
12pm CDT Aug 16, 2025-6pm CDT Aug 22, 2025
 
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