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

57°F

14°C

Humidity 40%
Wind Speed W 10 G 16 mph
Barometer 30.31 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 5 Apr 2:15 pm CDT
Extended Forecast for

Marissa IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 58. Northwest wind 11 to 13 mph, with gusts as high as 20 mph.

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 39. Northwest wind around 6 mph becoming light and variable.

    Low: 39 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 63. West wind 6 to 9 mph becoming northwest in the morning.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 39. North wind 7 to 10 mph, with gusts as high as 21 mph.

    Low: 39 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 55. East wind around 9 mph.

    High: 55 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 58. Northwest wind 11 to 13 mph, with gusts as high as 20 mph.
Tonight
Clear, with a low around 39. Northwest wind around 6 mph becoming light and variable.
Monday
Sunny, with a high near 63. West wind 6 to 9 mph becoming northwest in the morning.
Monday Night
Mostly cloudy, with a low around 39. North wind 7 to 10 mph, with gusts as high as 21 mph.
Tuesday
Partly sunny, with a high near 55. East wind around 9 mph.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Mostly sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 71.
Thursday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 57.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 76.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
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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:
1:26 pm CDT Apr 5, 2026
Forecast Valid:
2pm CDT Apr 5, 2026-6pm CDT Apr 11, 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