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

Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

A Few Clouds

80°F

27°C

Humidity 67%
Wind Speed E 5 mph
Barometer 30.09 in (1018.9 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 14 Aug 2:55 pm CDT
Extended Forecast for

Westby WI

  • This Afternoon

    This Afternoon: A 10 percent chance of showers after 5pm. Cloudy, with a high near 80. Southeast wind around 10 mph, with gusts as high as 20 mph.

    High: 80 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A chance of showers, with thunderstorms also possible after 10pm. Cloudy, with a low around 64. East wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 8am. Mostly cloudy, with a high near 82. East wind 5 to 9 mph.

    High: 82 °F

    Chance
    Showers then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly before 11pm. Partly cloudy during the early evening, then becoming cloudy, with a low around 67. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 80. Northwest wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 80 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58. Northwest wind around 6 mph becoming calm in the evening.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 80. Calm wind becoming west around 6 mph in the afternoon.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 60. Light southwest wind.

    Low: 60 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 80. Southwest wind 3 to 8 mph.

    High: 80 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

Detailed Forecast

This Afternoon
A 10 percent chance of showers after 5pm. Cloudy, with a high near 80. Southeast wind around 10 mph, with gusts as high as 20 mph.
Tonight
A chance of showers, with thunderstorms also possible after 10pm. Cloudy, with a low around 64. East wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Saturday
A 30 percent chance of showers, mainly before 8am. Mostly cloudy, with a high near 82. East wind 5 to 9 mph.
Saturday Night
Showers and thunderstorms likely, mainly before 11pm. Partly cloudy during the early evening, then becoming cloudy, with a low around 67. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Partly sunny, with a high near 80. Northwest wind 6 to 10 mph, with gusts as high as 18 mph.
Sunday Night
Mostly clear, with a low around 58. Northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 80. Calm wind becoming west around 6 mph in the afternoon.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 60. Light southwest wind.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 80. Southwest wind 3 to 8 mph.
Tuesday Night
Showers and possibly a thunderstorm. Low around 61. Southwest wind 3 to 6 mph. Chance of precipitation is 80%.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 77. Northwest wind around 8 mph.
Wednesday Night
Partly cloudy, with a low around 56. Northwest wind around 5 mph becoming calm in the evening.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 75. Light and variable wind.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 56. Calm wind.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 76. Calm wind becoming southwest around 6 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Westby WI
 43.65°N 90.86°W
Last Update:
2:31 pm CDT Aug 14, 2026
Forecast Valid:
3pm CDT Aug 14, 2026-6pm CDT Aug 21, 2026
 
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