National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fog/Mist

47°F

8°C

Humidity 98%
Wind Speed Calm
Barometer 30.00 in (1016.3 mb)
Dewpoint 47°F (8°C)
Visibility 5.00 mi
Last update 14 Oct 2:55 am CDT
Extended Forecast for

3 Miles WSW Norwalk WI

  • Overnight

    Overnight: Mostly cloudy, with a low around 47. North wind 3 to 5 mph.

    Low: 47 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 60. Light and variable wind becoming north around 6 mph.

    High: 60 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 46. Calm wind becoming east around 5 mph after midnight.

    Low: 46 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers, mainly after 10am. High near 55. East wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 55 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers before 1am. Low around 41. Breezy, with a northwest wind 5 to 10 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Showers and
    Breezy

  • Friday

    Friday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 53. Breezy, with a north wind 18 to 22 mph, with gusts as high as 34 mph.

    High: 53 °F

    Slight Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 29. North wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 18 mph.

    Low: 29 °F

    Mostly Clear
    then Frost

  • Saturday

    Saturday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 59. Light southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 24 mph.

    High: 59 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 39. Southwest wind 11 to 13 mph, with gusts as high as 25 mph.

    Low: 39 °F

    Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 47. North wind 3 to 5 mph.
Wednesday
Partly sunny, with a high near 60. Light and variable wind becoming north around 6 mph.
Wednesday Night
Mostly cloudy, with a low around 46. Calm wind becoming east around 5 mph after midnight.
Thursday
Showers, mainly after 10am. High near 55. East wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Showers before 1am. Low around 41. Breezy, with a northwest wind 5 to 10 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 53. Breezy, with a north wind 18 to 22 mph, with gusts as high as 34 mph.
Friday Night
Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 29. North wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Saturday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 59. Light southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 24 mph.
Saturday Night
Clear, with a low around 39. Southwest wind 11 to 13 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 64. Breezy, with a southwest wind 14 to 18 mph, with gusts as high as 28 mph.
Sunday Night
Partly cloudy, with a low around 45. Southwest wind 5 to 11 mph, with gusts as high as 25 mph.
Monday
Mostly sunny, with a high near 66. Southwest wind 3 to 5 mph.
Monday Night
Mostly clear, with a low around 42. Calm wind.
Tuesday
Mostly sunny, with a high near 69. Calm wind becoming south 5 to 7 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Norwalk WI
 43.82°N 90.67°W
Last Update:
3:26 am CDT Oct 14, 2026
Forecast Valid:
3am CDT Oct 14, 2026-6pm CDT Oct 20, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation