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

24°F

-4°C

Humidity 29%
Wind Speed W 9 mph
Barometer 30.42 in
Dewpoint -4°F (-20°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 19 Jan 2:55 pm CST
Extended Forecast for

Marissa IL

  • Tonight

    Tonight: Mostly clear, with a low around 12. Light and variable wind.

    Low: 12 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 37. Light south wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 21 mph.

    High: 37 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 30. South wind 11 to 16 mph, with gusts as high as 28 mph.

    Low: 30 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 46. West wind 6 to 14 mph, with gusts as high as 23 mph.

    High: 46 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 24. West wind 5 to 7 mph becoming northwest after midnight.

    Low: 24 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 13.

    Low: 13 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy and cold, with a high near 20.

    High: 20 °F

    Cold

  • Friday Night

    Friday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 3.

    Low: 3 °F

    Chance Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 12. Light and variable wind.
Tuesday
Sunny, with a high near 37. Light south wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Tuesday Night
Increasing clouds, with a low around 30. South wind 11 to 16 mph, with gusts as high as 28 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 46. West wind 6 to 14 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly clear, with a low around 24. West wind 5 to 7 mph becoming northwest after midnight.
Thursday
Mostly sunny, with a high near 37.
Thursday Night
Mostly cloudy, with a low around 13.
Friday
Mostly cloudy and cold, with a high near 20.
Friday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 3.
Saturday
A 30 percent chance of snow. Mostly cloudy and cold, with a high near 13.
Saturday Night
A 30 percent chance of snow. Partly cloudy, with a low around 5.
Sunday
Mostly sunny, with a high near 22.
Sunday Night
Mostly clear, with a low around 9.
Monday
Sunny, with a high near 33.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marissa IL
 38.25°N 89.74°W (Elev. 459 ft)
Last Update:
2:51 pm CST Jan 19, 2026
Forecast Valid:
3pm CST Jan 19, 2026-6pm CST Jan 26, 2026
 
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