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

Sparta Community-Hunter Field Airport (KSAR)

Lat: 38.15°NLon: 89.7°WElev: 528ft.

Overcast

70°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 15 Oct 1:55 am CDT
Extended Forecast for

Percy IL

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms. Cloudy, then gradually becoming mostly sunny, with a high near 86. Light and variable wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph.

    High: 86 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Scattered showers and thunderstorms, then showers likely after 11pm. Increasing clouds, with a low around 48. Southwest wind 7 to 16 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%.

    Low: 48 °F

    Showers
    Likely

  • Friday

    Friday: Partly sunny, with a high near 58. Breezy, with a northwest wind 16 to 21 mph, with gusts as high as 29 mph.

    High: 58 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38. Northwest wind 10 to 14 mph, with gusts as high as 21 mph.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 35.

    Low: 35 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Calm wind.
Thursday
A 50 percent chance of showers and thunderstorms. Cloudy, then gradually becoming mostly sunny, with a high near 86. Light and variable wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Scattered showers and thunderstorms, then showers likely after 11pm. Increasing clouds, with a low around 48. Southwest wind 7 to 16 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%.
Friday
Partly sunny, with a high near 58. Breezy, with a northwest wind 16 to 21 mph, with gusts as high as 29 mph.
Friday Night
Mostly cloudy, with a low around 38. Northwest wind 10 to 14 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 60.
Saturday Night
Clear, with a low around 35.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 37.
Monday
Mostly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Percy IL
 38°N 89.61°W (Elev. 459 ft)
Last Update:
1:26 am CDT Oct 15, 2026
Forecast Valid:
2am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
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