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.

Mostly Cloudy

21°F

-6°C

Humidity 47%
Wind Speed W 12 G 18 mph
Barometer 30.27 in
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Wind Chill9°F (-13°C)
Last update 17 Jan 5:55 pm CST
Extended Forecast for

Marissa IL

  • Tonight

    Tonight: A chance of flurries before 11pm. Mostly cloudy, then gradually becoming clear, with a low around 12. West wind 5 to 14 mph, with gusts as high as 22 mph.

    Low: 12 °F

    Chance
    Flurries

  • Sunday

    Sunday: A chance of flurries after noon. Increasing clouds, with a high near 32. South wind 5 to 14 mph, with gusts as high as 23 mph.

    High: 32 °F

    Chance
    Flurries

  • Sunday Night

    Sunday Night: A chance of flurries before 9pm. Partly cloudy, with a low around 14. Southwest wind 11 to 18 mph becoming northwest after midnight. Winds could gust as high as 26 mph.

    Low: 14 °F

    Chance
    Flurries

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 21. Northwest wind 7 to 17 mph, with gusts as high as 25 mph.

    High: 21 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 10. Northwest wind around 5 mph becoming calm.

    Low: 10 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 36.

    High: 36 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of flurries before 11pm. Mostly cloudy, then gradually becoming clear, with a low around 12. West wind 5 to 14 mph, with gusts as high as 22 mph.
Sunday
A chance of flurries after noon. Increasing clouds, with a high near 32. South wind 5 to 14 mph, with gusts as high as 23 mph.
Sunday Night
A chance of flurries before 9pm. Partly cloudy, with a low around 14. Southwest wind 11 to 18 mph becoming northwest after midnight. Winds could gust as high as 26 mph.
M.L.King Day
Mostly sunny, with a high near 21. Northwest wind 7 to 17 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 10. Northwest wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 36.
Tuesday Night
Partly cloudy, with a low around 28.
Wednesday
Mostly sunny, with a high near 45.
Wednesday Night
Partly cloudy, with a low around 22.
Thursday
Sunny, with a high near 37.
Thursday Night
Partly cloudy, with a low around 24.
Friday
Mostly sunny, with a high near 44.
Friday Night
A chance of rain or freezing rain. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 33. Chance of precipitation is 40%.
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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:
5:01 pm CST Jan 17, 2026
Forecast Valid:
6pm CST Jan 17, 2026-6pm CST Jan 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation