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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Lenzburg IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 29. South wind around 11 mph, with gusts as high as 23 mph.

    Low: 29 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 45. West wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 45 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 24. Southwest wind 5 to 8 mph becoming northwest after midnight.

    Low: 24 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 38. North wind 3 to 5 mph.

    High: 38 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 13. Light north wind increasing to 8 to 13 mph after midnight. Winds could gust as high as 21 mph.

    Low: 13 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy and cold, with a high near 17.

    High: 17 °F

    Cold

  • Friday Night

    Friday Night: A 20 percent chance of snow after midnight. Cloudy, with a low around 4.

    Low: 4 °F

    Cloudy then
    Slight Chance
    Snow

  • Saturday

    Saturday: A 50 percent chance of snow. Cloudy and cold, with a high near 14.

    High: 14 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 9.

    Low: 9 °F

    Chance Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 29. South wind around 11 mph, with gusts as high as 23 mph.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 45. West wind 7 to 11 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 24. Southwest wind 5 to 8 mph becoming northwest after midnight.
Thursday
Mostly sunny, with a high near 38. North wind 3 to 5 mph.
Thursday Night
Mostly cloudy, with a low around 13. Light north wind increasing to 8 to 13 mph after midnight. Winds could gust as high as 21 mph.
Friday
Mostly cloudy and cold, with a high near 17.
Friday Night
A 20 percent chance of snow after midnight. Cloudy, with a low around 4.
Saturday
A 50 percent chance of snow. Cloudy and cold, with a high near 14.
Saturday Night
A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 9.
Sunday
Partly sunny, with a high near 22.
Sunday Night
Partly cloudy, with a low around 7.
Monday
Mostly sunny, with a high near 25.
Monday Night
Partly cloudy, with a low around 10.
Tuesday
Mostly sunny, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lenzburg IL
 38.3°N 89.82°W (Elev. 436 ft)
Last Update:
7:01 pm CST Jan 20, 2026
Forecast Valid:
10pm CST Jan 20, 2026-6pm CST Jan 27, 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