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

82°F

28°C

Humidity 74%
Wind Speed SE 6 mph
Barometer 30.08 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 18 Aug 8:15 am CDT
Extended Forecast for

3 Miles SW Okawville IL

Heat Advisory August 18, 08:25am until August 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 18, 08:25am until August 18, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Today

    High: 94 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 73. Light southeast wind.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Heat index values as high as 105. Light and variable wind.

    High: 93 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 73. Light north wind. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 88. Light north wind increasing to 5 to 9 mph in the morning.

    High: 88 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 94. Heat index values as high as 105. South wind 3 to 6 mph.
Tonight
Mostly clear, with a low around 73. Light southeast wind.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Heat index values as high as 105. Light and variable wind.
Tuesday Night
A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 73. Light north wind. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 88. Light north wind increasing to 5 to 9 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 66.
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 65.
Saturday
Sunny, with a high near 87.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Sunny, with a high near 82.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Okawville IL
 38.4°N 89.59°W (Elev. 472 ft)
Last Update:
7:29 am CDT Aug 18, 2025
Forecast Valid:
8am CDT Aug 18, 2025-6pm CDT Aug 24, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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