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.

Mostly Cloudy

60°F

16°C

Humidity 89%
Wind Speed S 12 mph
Barometer 29.63 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 19 Feb 10:15 am CST
Extended Forecast for

Marissa IL

  • Today

    Today: A 40 percent chance of rain and thunderstorms, mainly before 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 69. South wind 9 to 15 mph, with gusts as high as 25 mph.

    High: 69 °F

    Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 37. West wind 10 to 17 mph, with gusts as high as 29 mph.

    Low: 37 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 50. West wind 11 to 16 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 50 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 30. Calm wind becoming north around 6 mph after midnight.

    Low: 30 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of rain after noon. Mostly sunny, with a high near 46. North wind 6 to 10 mph.

    High: 46 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 38. Breezy.

    High: 38 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 20.

    Low: 20 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 36.

    High: 36 °F

    Sunny

Detailed Forecast

Today
A 40 percent chance of rain and thunderstorms, mainly before 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 69. South wind 9 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 37. West wind 10 to 17 mph, with gusts as high as 29 mph.
Friday
Sunny, with a high near 50. West wind 11 to 16 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph.
Friday Night
Partly cloudy, with a low around 30. Calm wind becoming north around 6 mph after midnight.
Saturday
A 20 percent chance of rain after noon. Mostly sunny, with a high near 46. North wind 6 to 10 mph.
Saturday Night
Mostly clear, with a low around 25.
Sunday
Sunny, with a high near 38. Breezy.
Sunday Night
Mostly clear, with a low around 20.
Monday
Sunny, with a high near 36.
Monday Night
Mostly clear, with a low around 19.
Tuesday
Mostly sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Mostly cloudy, with a high near 59.
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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:
9:41 am CST Feb 19, 2026
Forecast Valid:
10am CST Feb 19, 2026-6pm CST Feb 25, 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