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.

Overcast

43°F

6°C

Humidity 86%
Wind Speed NW 5 mph
Barometer 30.08 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 8 Mar 2:35 am CDT
Extended Forecast for

Marissa IL

  • Overnight

    Overnight: Partly cloudy, with a low around 38. West wind around 5 mph becoming calm.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 65. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 45. South wind 6 to 8 mph.

    Low: 45 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 74. South wind 7 to 15 mph, with gusts as high as 23 mph.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61. South wind 9 to 14 mph, with gusts as high as 23 mph.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Rain likely, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.

    High: 78 °F

    Slight Chance
    Rain then
    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 57. Chance of precipitation is 90%.

    Low: 57 °F

    Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm before noon, then rain likely. High near 67. Breezy. Chance of precipitation is 100%.

    High: 67 °F

    Rain then
    Rain Likely
    and Breezy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before midnight. Partly cloudy, with a low around 33. Breezy.

    Low: 33 °F

    Slight Chance
    Rain and
    Breezy then
    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 38. West wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 65. Calm wind becoming southwest 5 to 8 mph in the morning.
Sunday Night
Clear, with a low around 45. South wind 6 to 8 mph.
Monday
Sunny, with a high near 74. South wind 7 to 15 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 61. South wind 9 to 14 mph, with gusts as high as 23 mph.
Tuesday
Rain likely, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 57. Chance of precipitation is 90%.
Wednesday
Rain and possibly a thunderstorm before noon, then rain likely. High near 67. Breezy. Chance of precipitation is 100%.
Wednesday Night
A 20 percent chance of rain before midnight. Partly cloudy, with a low around 33. Breezy.
Thursday
Sunny, with a high near 52.
Thursday Night
Mostly cloudy, with a low around 43.
Friday
Partly sunny, with a high near 67.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Partly sunny, with a high near 55.
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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:
12:26 am CST Mar 8, 2026
Forecast Valid:
1am CST Mar 8, 2026-6pm CDT Mar 14, 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