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.

Mostly Cloudy

19°F

-7°C

Humidity 62%
Wind Speed N 13 G 17 mph
Barometer 30.50 in
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 23 Feb 3:55 am CST
Extended Forecast for

Marissa IL

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 32. Northwest wind 6 to 15 mph, with gusts as high as 23 mph.

    High: 32 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 19. Calm wind becoming south 5 to 9 mph after midnight.

    Low: 19 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 49. Breezy, with a south wind 13 to 22 mph, with gusts as high as 32 mph.

    High: 49 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35. South wind 11 to 16 mph becoming west 5 to 10 mph after midnight. Winds could gust as high as 24 mph.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 52. Northwest wind around 6 mph becoming southeast in the afternoon.

    High: 52 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain, then rain likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.

    Low: 38 °F

    Slight Chance
    Rain then
    Rain Likely

  • Thursday

    Thursday: A 50 percent chance of rain before noon. Partly sunny, with a high near 48.

    High: 48 °F

    Chance Rain
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 32. Northwest wind 6 to 15 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 19. Calm wind becoming south 5 to 9 mph after midnight.
Tuesday
Partly sunny, with a high near 49. Breezy, with a south wind 13 to 22 mph, with gusts as high as 32 mph.
Tuesday Night
Mostly cloudy, with a low around 35. South wind 11 to 16 mph becoming west 5 to 10 mph after midnight. Winds could gust as high as 24 mph.
Wednesday
Mostly sunny, with a high near 52. Northwest wind around 6 mph becoming southeast in the afternoon.
Wednesday Night
A slight chance of rain, then rain likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Thursday
A 50 percent chance of rain before noon. Partly sunny, with a high near 48.
Thursday Night
Mostly clear, with a low around 29.
Friday
Sunny, with a high near 59.
Friday Night
Clear, with a low around 39.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 35.
Sunday
A 30 percent chance of rain. Partly sunny, with a high near 50.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marissa IL
 38.25°N 89.74°W (Elev. 459 ft)
Last Update:
12:25 am CST Feb 23, 2026
Forecast Valid:
4am CST Feb 23, 2026-6pm CST Mar 1, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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