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.

Fog/Mist

58°F

14°C

Humidity 97%
Wind Speed Calm
Barometer 29.70 in (1005.8 mb)
Dewpoint 57°F (14°C)
Visibility 6.00 mi
Last update 15 Apr 4:55 am CDT
Extended Forecast for

Melvina WI

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms. Patchy fog. Otherwise, mostly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Chance
    T-storms and
    Patchy Fog

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 66. Light north wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Chance
    T-storms and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly after 11pm. Mostly cloudy, with a low around 50. Northeast wind around 5 mph becoming calm in the evening. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 70. Light and variable wind.

    High: 70 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. Calm wind becoming south around 6 mph in the evening.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Showers likely and possibly a thunderstorm, mainly after 4pm. Partly sunny, with a high near 78. Breezy, with a south wind 8 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Mostly Sunny
    then Showers
    Likely and
    Breezy

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 36. South wind 11 to 14 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 80%.

    Low: 36 °F

    Showers

  • Saturday

    Saturday: A 40 percent chance of showers. Partly sunny, with a high near 46. Breezy, with a west wind 14 to 17 mph, with gusts as high as 26 mph.

    High: 46 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: A 20 percent chance of snow showers before 1am. Partly cloudy, with a low around 29. Breezy, with a west wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 29 °F

    Slight Chance
    Snow Showers
    and Breezy

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms. Patchy fog. Otherwise, mostly cloudy, with a low around 56. Calm wind.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 66. Light north wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly after 11pm. Mostly cloudy, with a low around 50. Northeast wind around 5 mph becoming calm in the evening. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 70. Light and variable wind.
Thursday Night
Mostly clear, with a low around 53. Calm wind becoming south around 6 mph in the evening.
Friday
Showers likely and possibly a thunderstorm, mainly after 4pm. Partly sunny, with a high near 78. Breezy, with a south wind 8 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 36. South wind 11 to 14 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 80%.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 46. Breezy, with a west wind 14 to 17 mph, with gusts as high as 26 mph.
Saturday Night
A 20 percent chance of snow showers before 1am. Partly cloudy, with a low around 29. Breezy, with a west wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday
Mostly sunny, with a high near 49. Northwest wind 10 to 14 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 29. Northwest wind 5 to 7 mph becoming light and variable.
Monday
Sunny, with a high near 61. Southeast wind 6 to 11 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 45. South wind around 10 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 69. West wind 9 to 13 mph, with gusts as high as 22 mph.
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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:
3:46 am CDT Apr 15, 2026
Forecast Valid:
5am CDT Apr 15, 2026-6pm CDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation