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.

Fair

16°F

-9°C

Humidity 79%
Wind Speed Calm
Barometer 30.20 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Last update 5 Dec 12:15 am CST
Extended Forecast for

Marissa IL

  • Overnight

    Overnight: Clear, with a low around 15. Calm wind.

    Low: 15 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 41. Calm wind becoming south 5 to 8 mph in the morning.

    High: 41 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 28. Southwest wind 3 to 8 mph.

    Low: 28 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Cloudy, then gradually becoming mostly sunny, with a high near 40. Light and variable wind.

    High: 40 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 29. East wind 3 to 5 mph.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: A 20 percent chance of rain before noon. Mostly cloudy, with a high near 40.

    High: 40 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 15. Calm wind.
Friday
Sunny, with a high near 41. Calm wind becoming south 5 to 8 mph in the morning.
Friday Night
Increasing clouds, with a low around 28. Southwest wind 3 to 8 mph.
Saturday
Cloudy, then gradually becoming mostly sunny, with a high near 40. Light and variable wind.
Saturday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 29. East wind 3 to 5 mph.
Sunday
A 20 percent chance of rain before noon. Mostly cloudy, with a high near 40.
Sunday Night
Mostly cloudy, with a low around 19.
Monday
Mostly sunny, with a high near 33.
Monday Night
Partly cloudy, with a low around 23.
Tuesday
Mostly sunny, with a high near 46.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 49.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Partly sunny, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marissa IL
 38.25°N 89.74°W (Elev. 459 ft)
Last Update:
8:26 pm CST Dec 4, 2025
Forecast Valid:
12am CST Dec 5, 2025-6pm CST Dec 11, 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