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.

A Few Clouds

87°F

31°C

Humidity 57%
Wind Speed Calm
Barometer 29.97 in (1014.7 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 3 Jul 11:55 am CDT
Extended Forecast for

Melvina WI

  • This Afternoon

    This Afternoon: A 10 percent chance of showers and thunderstorms after 5pm. Sunny, with a steady temperature around 86. South wind 5 to 7 mph.

    High: 86 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly before 5am. Mostly cloudy, with a low around 70. Calm wind becoming south around 5 mph after midnight. New rainfall amounts between a quarter and half of an inch possible.

    Low: 70 °F

    Chance
    T-storms

  • Independence Day

    Independence Day: A 10 percent chance of showers and thunderstorms before 7am. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 93. Heat index values as high as 97. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Slight Chance
    T-storms and
    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 75. South wind around 7 mph, with gusts as high as 18 mph.

    Low: 75 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers, then showers and thunderstorms likely after 10am. Partly sunny, with a high near 87. Southwest wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 67. West wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Showers
    Likely

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81. Northwest wind around 7 mph.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62. North wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 81. Light and variable wind.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 10 percent chance of showers and thunderstorms after 5pm. Sunny, with a steady temperature around 86. South wind 5 to 7 mph.
Tonight
A 50 percent chance of showers and thunderstorms, mainly before 5am. Mostly cloudy, with a low around 70. Calm wind becoming south around 5 mph after midnight. New rainfall amounts between a quarter and half of an inch possible.
Independence Day
A 10 percent chance of showers and thunderstorms before 7am. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 93. Heat index values as high as 97. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 75. South wind around 7 mph, with gusts as high as 18 mph.
Saturday
A slight chance of showers, then showers and thunderstorms likely after 10am. Partly sunny, with a high near 87. Southwest wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 67. West wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81. Northwest wind around 7 mph.
Sunday Night
Partly cloudy, with a low around 62. North wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 81. Light and variable wind.
Monday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 61. Light southeast wind.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82. Southeast wind around 6 mph becoming southwest in the afternoon.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65. Light southwest wind.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83. Calm wind becoming west around 6 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Melvina WI
 43.8°N 90.79°W
Last Update:
10:58 am CDT Jul 3, 2025
Forecast Valid:
12pm CDT Jul 3, 2025-6pm CDT Jul 9, 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