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

Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

31°F

-1°C

Humidity 97%
Wind Speed Calm
Barometer 30.35 in (1028.5 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 8 Oct 2:55 am CDT
Extended Forecast for

5 Miles WSW Cataract WI

Frost Advisory until October 8, 09:00am
Click here for hazard details and duration
Frost Advisory
  •  
    Frost Advisory until October 8, 09:00am

    NOW until 9:00am Wed

    Frost Advisory

  • Overnight

    Low: 33 °F

    Frost

  • Wednesday

    Wednesday: Widespread frost before 9am. Otherwise, sunny, with a high near 61. Calm wind.

    High: 61 °F

    Frost then
    Sunny

  • Wednesday Night

    Wednesday Night: Areas of frost after 4am. Otherwise, clear, with a low around 35. Calm wind.

    Low: 35 °F

    Clear then
    Areas Frost

  • Thursday

    Thursday: Areas of frost before 8am. Otherwise, sunny, with a high near 66. Light south wind increasing to 5 to 9 mph in the morning.

    High: 66 °F

    Areas Frost
    then Sunny

  • Thursday Night

    Thursday Night: A chance of showers before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 48. South wind around 7 mph. Chance of precipitation is 30%.

    Low: 48 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 69. South wind around 7 mph becoming northwest in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46. Light and variable wind.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 71. Southeast wind 3 to 8 mph.

    High: 71 °F

    Mostly Sunny

Detailed Forecast

Overnight
Widespread frost. Otherwise, clear, with a steady temperature around 33. Calm wind.
Wednesday
Widespread frost before 9am. Otherwise, sunny, with a high near 61. Calm wind.
Wednesday Night
Areas of frost after 4am. Otherwise, clear, with a low around 35. Calm wind.
Thursday
Areas of frost before 8am. Otherwise, sunny, with a high near 66. Light south wind increasing to 5 to 9 mph in the morning.
Thursday Night
A chance of showers before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 48. South wind around 7 mph. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 69. South wind around 7 mph becoming northwest in the afternoon.
Friday Night
Partly cloudy, with a low around 46. Light and variable wind.
Saturday
Mostly sunny, with a high near 71. Southeast wind 3 to 8 mph.
Saturday Night
Partly cloudy, with a low around 52. Southeast wind 6 to 9 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 71. South wind 9 to 14 mph, with gusts as high as 23 mph.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 56. Southeast wind 8 to 10 mph, with gusts as high as 22 mph.
Columbus Day
A 30 percent chance of showers. Partly sunny, with a high near 70. South wind around 8 mph.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 53. Southeast wind around 6 mph.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 70. Southeast wind around 7 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Cataract WI
 44.06°N 90.93°W
Last Update:
1:11 am CDT Oct 8, 2025
Forecast Valid:
3am CDT Oct 8, 2025-6pm CDT Oct 14, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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