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

49°F

9°C

Humidity 50%
Wind Speed NW 8 G 17 mph
Barometer 30.33 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 5 Apr 10:55 am CDT
Extended Forecast for

Marissa IL

  • Today

    Today: Sunny, with a high near 58. Northwest wind 11 to 13 mph, with gusts as high as 21 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 38. North wind 7 to 10 mph, with gusts as high as 21 mph.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 53. East wind around 9 mph.

    High: 53 °F

    Partly Sunny

  • Tuesday Night

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

    Low: 40 °F

    Mostly 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 53.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 58. Northwest wind 11 to 13 mph, with gusts as high as 21 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 38. North wind 7 to 10 mph, with gusts as high as 21 mph.
Tuesday
Partly sunny, with a high near 53. East wind around 9 mph.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Mostly sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 74.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 55.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 75.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 76.
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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:
9:51 am CDT Apr 5, 2026
Forecast Valid:
11am 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