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.

Light Rain

48°F

9°C

Humidity 94%
Wind Speed Calm
Barometer 30.32 in (1027.4 mb)
Dewpoint 46°F (8°C)
Visibility 8.00 mi
Last update 14 Oct 11:55 pm CDT
Extended Forecast for

3 Miles NNE Tunnel City WI

  • Overnight

    Overnight: Showers, mainly before 5am. Low around 48. East wind 5 to 7 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly before 9am. Cloudy, with a high near 57. East wind 5 to 7 mph.

    High: 57 °F

    Chance
    Showers then
    Cloudy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 48. East wind 5 to 7 mph.

    Low: 48 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers. Mostly cloudy, with a high near 65. Southeast wind 6 to 10 mph, with gusts as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 55. Southeast wind around 8 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Slight Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 74. South wind 9 to 13 mph, with gusts as high as 23 mph.

    High: 74 °F

    Partly Sunny

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 50. Southwest wind around 7 mph. Chance of precipitation is 60%.

    Low: 50 °F

    Showers
    Likely

  • Saturday

    Saturday: A 20 percent chance of showers. Mostly sunny, with a high near 66. West wind 5 to 9 mph.

    High: 66 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers, mainly after 1am. Partly cloudy, with a low around 38. West wind around 6 mph.

    Low: 38 °F

    Chance
    Showers

Detailed Forecast

Overnight
Showers, mainly before 5am. Low around 48. East wind 5 to 7 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A 30 percent chance of showers, mainly before 9am. Cloudy, with a high near 57. East wind 5 to 7 mph.
Wednesday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 48. East wind 5 to 7 mph.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 65. Southeast wind 6 to 10 mph, with gusts as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 55. Southeast wind around 8 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 74. South wind 9 to 13 mph, with gusts as high as 23 mph.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 50. Southwest wind around 7 mph. Chance of precipitation is 60%.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 66. West wind 5 to 9 mph.
Saturday Night
A 30 percent chance of showers, mainly after 1am. Partly cloudy, with a low around 38. West wind around 6 mph.
Sunday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 57. West wind 7 to 11 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 38. West wind 3 to 6 mph.
Monday
Mostly sunny, with a high near 63. Southwest wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 41. South wind around 7 mph.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 62. Southwest wind 7 to 13 mph, with gusts as high as 21 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Tunnel City WI
 44.03°N 90.54°W
Last Update:
12:11 am CDT Oct 15, 2025
Forecast Valid:
12am CDT Oct 15, 2025-6pm CDT Oct 21, 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