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.

Light Rain Fog/Mist

46°F

8°C

Humidity 93%
Wind Speed Calm
Barometer 29.76 in (1008.6 mb)
Dewpoint 44°F (7°C)
Visibility 6.00 mi
Last update 21 May 12:55 am CDT
Extended Forecast for

Tomah WISimilar City Names

  • Overnight

    Overnight: Showers likely. Cloudy, with a low around 42. East wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers. High near 51. Northeast wind around 9 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before 1am. Cloudy, with a low around 42. Northeast wind 5 to 7 mph becoming northwest after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Showers
    Likely

  • Thursday

    Thursday: Mostly sunny, with a high near 63. North wind 7 to 13 mph, with gusts as high as 21 mph.

    High: 63 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Patchy frost after 4am. Otherwise, mostly clear, with a low around 36. North wind 5 to 7 mph becoming calm in the evening.

    Low: 36 °F

    Partly Cloudy
    then Patchy
    Frost

  • Friday

    Friday: Mostly sunny, with a high near 62. North wind 3 to 7 mph.

    High: 62 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 64. Calm wind becoming east around 5 mph in the afternoon.

    High: 64 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Slight Chance
    Showers

Detailed Forecast

Overnight
Showers likely. Cloudy, with a low around 42. East wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Showers. High near 51. Northeast wind around 9 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Showers likely, mainly before 1am. Cloudy, with a low around 42. Northeast wind 5 to 7 mph becoming northwest after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Mostly sunny, with a high near 63. North wind 7 to 13 mph, with gusts as high as 21 mph.
Thursday Night
Patchy frost after 4am. Otherwise, mostly clear, with a low around 36. North wind 5 to 7 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 62. North wind 3 to 7 mph.
Friday Night
Partly cloudy, with a low around 38. Calm wind.
Saturday
Mostly sunny, with a high near 64. Calm wind becoming east around 5 mph in the afternoon.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 41. Calm wind.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 64. Northeast wind 3 to 7 mph.
Sunday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 42. Northeast wind around 5 mph becoming calm in the evening.
Memorial Day
A 30 percent chance of showers. Mostly sunny, with a high near 66. Calm wind becoming north 5 to 8 mph in the morning.
Monday Night
A 30 percent chance of showers. Partly cloudy, with a low around 42. North wind around 5 mph becoming calm in the evening.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 69. Calm wind becoming north around 6 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Tomah WISimilar City Names
 43.99°N 90.51°W
Last Update:
1:01 am CDT May 21, 2025
Forecast Valid:
1am CDT May 21, 2025-6pm CDT May 27, 2025
 
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Additional Resources

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High Temperature

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Chance of Precipitation