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.

Partly Cloudy

82°F

28°C

Humidity 59%
Wind Speed S 18 G 25 mph
Barometer 29.88 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 17 Apr 1:55 pm CDT
Extended Forecast for

Marissa IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. South wind around 16 mph, with gusts as high as 24 mph.

    High: 84 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2am. Low around 49. South wind around 14 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%.

    Low: 49 °F

    T-storms
    Likely then
    T-storms

  • Saturday

    Saturday: Showers likely, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 60. Northwest wind 14 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.

    High: 60 °F

    Showers
    Likely then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. Northwest wind 5 to 11 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 65. West wind 5 to 11 mph, with gusts as high as 20 mph.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. South wind around 16 mph, with gusts as high as 24 mph.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2am. Low around 49. South wind around 14 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%.
Saturday
Showers likely, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 60. Northwest wind 14 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Saturday Night
Mostly clear, with a low around 39. Northwest wind 5 to 11 mph becoming west after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 65. West wind 5 to 11 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 43.
Monday
Sunny, with a high near 71.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
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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:
1:16 pm CDT Apr 17, 2026
Forecast Valid:
2pm CDT Apr 17, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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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