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

36°F

2°C

Humidity 77%
Wind Speed W 5 mph
Barometer 30.35 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 12 Mar 8:35 am CDT
Extended Forecast for

Marissa IL

  • Today

    Today: Sunny, with a high near 54. West wind 3 to 8 mph.

    High: 54 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 43. Breezy, with a south wind 9 to 14 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 36 mph.

    Low: 43 °F

    Mostly Clear
    then Partly
    Cloudy and
    Breezy

  • Friday

    Friday: Mostly sunny, with a high near 62. Southwest wind 14 to 17 mph becoming west in the afternoon. Winds could gust as high as 30 mph.

    High: 62 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 37. Northwest wind around 6 mph becoming light and variable.

    Low: 37 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 63. Southeast wind 6 to 10 mph.

    High: 63 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 1pm. High near 67. Breezy. Chance of precipitation is 80%.

    High: 67 °F

    Breezy.
    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain likely, possibly mixed with snow, mainly before 1am. Some thunder is also possible. Mostly cloudy, with a low around 24. Breezy. Chance of precipitation is 60%.

    Low: 24 °F

    Rain/Snow
    Likely and
    Breezy

  • Monday

    Monday: Mostly sunny, with a high near 34. Breezy.

    High: 34 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

Today
Sunny, with a high near 54. West wind 3 to 8 mph.
Tonight
Mostly clear, with a low around 43. Breezy, with a south wind 9 to 14 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 36 mph.
Friday
Mostly sunny, with a high near 62. Southwest wind 14 to 17 mph becoming west in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Partly cloudy, with a low around 37. Northwest wind around 6 mph becoming light and variable.
Saturday
Partly sunny, with a high near 63. Southeast wind 6 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 54.
Sunday
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 1pm. High near 67. Breezy. Chance of precipitation is 80%.
Sunday Night
Rain likely, possibly mixed with snow, mainly before 1am. Some thunder is also possible. Mostly cloudy, with a low around 24. Breezy. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 34. Breezy.
Monday Night
Mostly clear, with a low around 16.
Tuesday
Partly sunny, with a high near 40.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Partly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marissa IL
 38.25°N 89.77°W (Elev. 440 ft)
Last Update:
5:56 am CDT Mar 12, 2026
Forecast Valid:
8am CDT Mar 12, 2026-6pm CDT Mar 18, 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