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.

Rain

61°F

16°C

Humidity 100%
Wind Speed W 5 mph
Barometer 29.98 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 4 Apr 7:55 am CDT
Extended Forecast for

Marissa IL

  • Today

    Today: Showers and possibly a thunderstorm before 2pm, then a slight chance of showers between 2pm and 3pm. Temperature falling to around 55 by 3pm. West wind 13 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.

    High: 64 °F⇓

    Showers then
    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 39. Northwest wind 7 to 13 mph, with gusts as high as 21 mph.

    Low: 39 °F

    Gradual
    Clearing

  • Sunday

    Sunday: Sunny, with a high near 57. Northwest wind 7 to 11 mph.

    High: 57 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 39. Northwest wind around 6 mph becoming calm.

    Low: 39 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 62. Northwest wind 6 to 10 mph.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm before 2pm, then a slight chance of showers between 2pm and 3pm. Temperature falling to around 55 by 3pm. West wind 13 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 39. Northwest wind 7 to 13 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 57. Northwest wind 7 to 11 mph.
Sunday Night
Clear, with a low around 39. Northwest wind around 6 mph becoming calm.
Monday
Sunny, with a high near 62. Northwest wind 6 to 10 mph.
Monday Night
Partly cloudy, with a low around 37.
Tuesday
Partly sunny, with a high near 53.
Tuesday Night
Partly cloudy, with a low around 39.
Wednesday
Mostly sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
Sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 54.
Friday
A 20 percent chance of showers and thunderstorms. Mostly 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:
7:56 am CDT Apr 4, 2026
Forecast Valid:
8am CDT Apr 4, 2026-6pm CDT Apr 10, 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