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.

Overcast

61°F

16°C

Humidity 97%
Wind Speed NW 3 mph
Barometer 30.01 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 5 Mar 5:15 pm CST
Extended Forecast for

Lenzburg IL

  • Tonight

    Tonight: A 40 percent chance of rain and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 59. Calm wind becoming south 5 to 8 mph after midnight.

    Low: 59 °F

    Chance
    T-storms

  • Friday

    Friday: A 20 percent chance of rain and thunderstorms before 7am. Partly sunny, with a high near 75. South wind 8 to 18 mph, with gusts as high as 28 mph.

    High: 75 °F

    Slight Chance
    T-storms then
    Partly Sunny

  • Friday Night

    Friday Night: Rain and possibly a thunderstorm after midnight. Low around 62. South wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.

    Low: 62 °F

    Mostly Cloudy
    then Rain

  • Saturday

    Saturday: Rain likely and possibly a thunderstorm before noon, then a slight chance of rain and thunderstorms between noon and 3pm, then a slight chance of rain after 3pm. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 71. South wind 9 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 70%.

    High: 71 °F

    Rain Likely
    and Patchy
    Fog then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 40. Northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of rain, then a chance of rain and thunderstorms after midnight. Partly cloudy, with a low around 60. Chance of precipitation is 30%.

    Low: 60 °F

    Slight Chance
    Rain then
    Chance
    T-storms

Detailed Forecast

Tonight
A 40 percent chance of rain and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 59. Calm wind becoming south 5 to 8 mph after midnight.
Friday
A 20 percent chance of rain and thunderstorms before 7am. Partly sunny, with a high near 75. South wind 8 to 18 mph, with gusts as high as 28 mph.
Friday Night
Rain and possibly a thunderstorm after midnight. Low around 62. South wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.
Saturday
Rain likely and possibly a thunderstorm before noon, then a slight chance of rain and thunderstorms between noon and 3pm, then a slight chance of rain after 3pm. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 71. South wind 9 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 70%.
Saturday Night
Partly cloudy, with a low around 40. Northwest wind 5 to 8 mph becoming calm after midnight.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 48.
Monday
Sunny, with a high near 77.
Monday Night
A slight chance of rain, then a chance of rain and thunderstorms after midnight. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Tuesday
Rain likely and possibly a thunderstorm. Partly sunny, with a high near 78. Chance of precipitation is 70%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 58. Chance of precipitation is 80%.
Wednesday
Rain. High near 67. Chance of precipitation is 80%.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 37.
Thursday
Sunny, with a high near 55.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lenzburg IL
 38.3°N 89.82°W (Elev. 436 ft)
Last Update:
5:10 pm CST Mar 5, 2026
Forecast Valid:
5pm CST Mar 5, 2026-6pm CDT Mar 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation