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

72°F

22°C

Humidity 54%
Wind Speed S 6 mph
Barometer 29.93 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 16 Apr 7:15 pm CDT
Extended Forecast for

Marissa IL

  • Tonight

    Tonight: Mostly clear, with a low around 59. South wind 3 to 5 mph.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: Isolated showers and thunderstorms between 8am and 10am. Mostly sunny, with a high near 83. South wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 83 °F

    Isolated
    T-storms then
    Mostly Sunny

  • Friday Night

    Friday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 51. South wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 100%.

    Low: 51 °F

    Scattered
    T-storms then
    T-storms

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Partly sunny, with a steady temperature around 56. West wind 14 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    High: 56 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38. Northwest wind 6 to 13 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 41.

    Low: 41 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 59. South wind 3 to 5 mph.
Friday
Isolated showers and thunderstorms between 8am and 10am. Mostly sunny, with a high near 83. South wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Friday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 51. South wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 100%.
Saturday
Showers likely and possibly a thunderstorm. Partly sunny, with a steady temperature around 56. West wind 14 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Saturday Night
Mostly clear, with a low around 38. Northwest wind 6 to 13 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 65.
Sunday Night
Clear, with a low around 41.
Monday
Sunny, with a high near 71.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 78.
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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:
7:06 pm CDT Apr 16, 2026
Forecast Valid:
7pm CDT Apr 16, 2026-6pm CDT Apr 23, 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