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

80°F

27°C

Humidity 43%
Wind Speed SW 13 G 24 mph
Barometer 29.92 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 31 Mar 2:15 pm CDT
Extended Forecast for

Marissa IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 84. Southwest wind 16 to 18 mph, with gusts as high as 26 mph.

    High: 84 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. South wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 4pm, then a slight chance of showers after 4pm. Mostly cloudy, with a high near 79. South wind 6 to 10 mph. Chance of precipitation is 50%.

    High: 79 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 7pm, then a slight chance of showers after 1am. Mostly cloudy, with a low around 66. South wind 10 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    Low: 66 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A chance of rain, then rain likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Breezy, with a south wind 20 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 70%.

    High: 77 °F

    Breezy.
    Chance Rain
    then Rain
    Likely

  • Thursday Night

    Thursday Night: Rain likely and possibly a thunderstorm. Partly cloudy, with a low around 63. Breezy. Chance of precipitation is 70%.

    Low: 63 °F

    Rain Likely
    and Breezy

  • Friday

    Friday: Rain likely and possibly a thunderstorm before 10am, then rain likely between 10am and 1pm, then rain likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 80. Chance of precipitation is 60%.

    High: 80 °F

    Rain Likely

  • Friday Night

    Friday Night: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 1am. Low around 56. Chance of precipitation is 80%.

    Low: 56 °F

    Chance
    T-storms then
    Rain

  • Saturday

    Saturday: Rain and possibly a thunderstorm before 1pm, then a chance of rain and thunderstorms after 1pm. High near 66. Chance of precipitation is 80%.

    High: 66 °F

    Rain

Detailed Forecast

This Afternoon
Partly sunny, with a high near 84. Southwest wind 16 to 18 mph, with gusts as high as 26 mph.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. South wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Wednesday
A slight chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 4pm, then a slight chance of showers after 4pm. Mostly cloudy, with a high near 79. South wind 6 to 10 mph. Chance of precipitation is 50%.
Wednesday Night
A slight chance of showers before 7pm, then a slight chance of showers after 1am. Mostly cloudy, with a low around 66. South wind 10 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Thursday
A chance of rain, then rain likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Breezy, with a south wind 20 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 70%.
Thursday Night
Rain likely and possibly a thunderstorm. Partly cloudy, with a low around 63. Breezy. Chance of precipitation is 70%.
Friday
Rain likely and possibly a thunderstorm before 10am, then rain likely between 10am and 1pm, then rain likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 80. Chance of precipitation is 60%.
Friday Night
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 1am. Low around 56. Chance of precipitation is 80%.
Saturday
Rain and possibly a thunderstorm before 1pm, then a chance of rain and thunderstorms after 1pm. High near 66. Chance of precipitation is 80%.
Saturday Night
A 30 percent chance of rain, mainly before 1am. Mostly cloudy, with a low around 39.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Mostly clear, with a low around 33.
Monday
Sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marissa IL
 38.25°N 89.74°W (Elev. 459 ft)
Last Update:
1:30 pm CDT Mar 31, 2026
Forecast Valid:
2pm CDT Mar 31, 2026-6pm CDT Apr 6, 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