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

81°F

27°C

Humidity 77%
Wind Speed S 3 mph
Barometer 30.06 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 17 Aug 12:15 am CDT
Extended Forecast for

3 Miles SW Nashville IL

Heat Advisory August 17, 12:32am until August 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 17, 12:32am until August 18, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Overnight

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 106. Calm wind.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 97. Heat index values as high as 109. Calm wind.

    High: 97 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 72.

    Low: 72 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.

    High: 86 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 75. Calm wind.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 106. Calm wind.
Sunday Night
A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 75. Calm wind.
Monday
Sunny and hot, with a high near 97. Heat index values as high as 109. Calm wind.
Monday Night
Mostly clear, with a low around 75. Calm wind.
Tuesday
Sunny and hot, with a high near 98.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 72.
Wednesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Wednesday Night
Partly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 65.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Nashville IL
 38.31°N 89.42°W (Elev. 499 ft)
Last Update:
5:56 pm CDT Aug 16, 2025
Forecast Valid:
12am CDT Aug 17, 2025-6pm CDT Aug 23, 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