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

80°F

27°C

Humidity 36%
Wind Speed W 3 mph
Barometer 29.91 in
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 16 Apr 4:35 pm CDT
Extended Forecast for

Marissa IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80. Southwest wind around 6 mph.

    High: 80 °F

    Slight Chance
    T-storms

  • Tonight

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

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of 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

    Slight Chance
    T-storms then
    Mostly Sunny

  • Friday Night

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

    Low: 51 °F

    Chance
    T-storms then
    Showers

  • 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.

    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

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80. Southwest wind around 6 mph.
Tonight
Mostly clear, with a low around 59. South wind 3 to 5 mph.
Friday
A slight chance of 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
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. 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.
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
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ABOUT THIS FORECAST

 
Point Forecast:
Marissa IL
 38.25°N 89.74°W (Elev. 459 ft)
Last Update:
2:41 pm CDT Apr 16, 2026
Forecast Valid:
5pm 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