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.

Fog/Mist

51°F

11°C

Humidity 100%
Wind Speed N 5 mph
Barometer 29.98 in
Dewpoint 51°F (11°C)
Visibility 4.00 mi
Wind Chill49°F (9°C)
Last update 22 Nov 12:55 am CST
Extended Forecast for

Marissa IL

  • Overnight

    Overnight: Patchy drizzle and fog. Cloudy, with a low around 47. North wind around 7 mph.

    Low: 47 °F

    Patchy
    Drizzle and
    Patchy Fog

  • Saturday

    Saturday: Patchy drizzle before 9am. Patchy fog before 8am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 56. North wind 5 to 8 mph becoming west in the afternoon.

    High: 56 °F

    Patchy
    Drizzle and
    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41. West wind 3 to 5 mph.

    Low: 41 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 62. Northwest wind around 6 mph becoming calm in the morning.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 42. Calm wind becoming southeast around 5 mph after midnight.

    Low: 42 °F

    Partly Cloudy

  • Monday

    Monday: Rain likely, mainly after noon. Cloudy, with a high near 58. Chance of precipitation is 70%.

    High: 58 °F

    Chance Rain
    then Rain
    Likely

  • Monday Night

    Monday Night: Rain, mainly before midnight. Low around 51. Chance of precipitation is 90%.

    Low: 51 °F

    Rain then
    Chance Rain

  • Tuesday

    Tuesday: A 20 percent chance of rain before noon. Partly sunny, with a high near 63.

    High: 63 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy drizzle and fog. Cloudy, with a low around 47. North wind around 7 mph.
Saturday
Patchy drizzle before 9am. Patchy fog before 8am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 56. North wind 5 to 8 mph becoming west in the afternoon.
Saturday Night
Mostly clear, with a low around 41. West wind 3 to 5 mph.
Sunday
Sunny, with a high near 62. Northwest wind around 6 mph becoming calm in the morning.
Sunday Night
Partly cloudy, with a low around 42. Calm wind becoming southeast around 5 mph after midnight.
Monday
Rain likely, mainly after noon. Cloudy, with a high near 58. Chance of precipitation is 70%.
Monday Night
Rain, mainly before midnight. Low around 51. Chance of precipitation is 90%.
Tuesday
A 20 percent chance of rain before noon. Partly sunny, with a high near 63.
Tuesday Night
Partly cloudy, with a low around 35.
Wednesday
Mostly sunny, with a high near 49.
Wednesday Night
Partly cloudy, with a low around 29.
Thanksgiving Day
Mostly sunny, with a high near 48.
Thursday Night
Mostly cloudy, with a low around 30.
Friday
A 20 percent chance of rain. Mostly sunny, with a high near 46.
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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:
11:26 pm CST Nov 21, 2025
Forecast Valid:
1am CST Nov 22, 2025-6pm CST Nov 28, 2025
 
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