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

60°F

16°C

Humidity 98%
Wind Speed S 9 mph
Barometer 29.78 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 26 Dec 4:55 am CST
Extended Forecast for

Marissa IL

  • Today

    Today: Sunny through mid morning, then becoming mostly cloudy, with a high near 70. South wind 6 to 10 mph becoming northwest in the afternoon.

    High: 70 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 47. Light and variable wind.

    Low: 47 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 68. Light southeast wind increasing to 5 to 10 mph in the morning.

    High: 68 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain. Cloudy, with a low around 63. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 63 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A chance of rain before 9am, then a chance of rain and thunderstorms between 9am and noon, then rain and possibly a thunderstorm after noon. High near 71. South wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.

    High: 71 °F

    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain likely before midnight, then a slight chance of rain and snow between midnight and 3am, then a slight chance of snow after 3am. Mostly cloudy, with a low around 23. Blustery. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Blustery.
    Rain Likely
    then Slight
    Chance
    Rain/Snow

  • Monday

    Monday: Mostly sunny, with a high near 29. Blustery.

    High: 29 °F

    Mostly Sunny
    and Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 19.

    Low: 19 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 37.

    High: 37 °F

    Sunny

Detailed Forecast

Today
Sunny through mid morning, then becoming mostly cloudy, with a high near 70. South wind 6 to 10 mph becoming northwest in the afternoon.
Tonight
Mostly cloudy, with a low around 47. Light and variable wind.
Saturday
Partly sunny, with a high near 68. Light southeast wind increasing to 5 to 10 mph in the morning.
Saturday Night
A 20 percent chance of rain. Cloudy, with a low around 63. South wind around 10 mph, with gusts as high as 20 mph.
Sunday
A chance of rain before 9am, then a chance of rain and thunderstorms between 9am and noon, then rain and possibly a thunderstorm after noon. High near 71. South wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Sunday Night
Rain likely before midnight, then a slight chance of rain and snow between midnight and 3am, then a slight chance of snow after 3am. Mostly cloudy, with a low around 23. Blustery. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Monday
Mostly sunny, with a high near 29. Blustery.
Monday Night
Mostly clear, with a low around 19.
Tuesday
Sunny, with a high near 37.
Tuesday Night
Mostly clear, with a low around 26.
Wednesday
Mostly sunny, with a high near 42.
Wednesday Night
Partly cloudy, with a low around 23.
New Year's Day
Partly sunny, with a high near 36.
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 89.77°W (Elev. 440 ft)
Last Update:
3:41 am CST Dec 26, 2025
Forecast Valid:
5am CST Dec 26, 2025-6pm CST Jan 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