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

Lala Impacting Hawaii; Severe Thunderstorm and Flash Flooding Risks; Excessive Heat

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorm, heavy rainfall, and flash flooding threats continue from the Midwest to the Mid-Atlantic and across the central High Plains. Record heat continues for areas of the central/southern Plain into the Southeast Read More >

Current conditions at

Viroqua Municipal Airport (KY51)

Lat: 43.58°NLon: 90.91°WElev: 1292ft.

Mostly Cloudy

66°F

19°C

Humidity 88%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 16 Aug 10:35 pm CDT
Extended Forecast for

Westby WI

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly clear, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Clear
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 8am. Otherwise, sunny, with a high near 81. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: A slight chance of showers before 3am, then a slight chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 63. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.

    Low: 63 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm, mainly after 1pm. Partly sunny, with a high near 80. West wind 5 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of thunderstorms before 7pm. Partly cloudy, with a low around 58. Light north wind. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. Light north wind.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 79. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 58. Light southwest wind.

    Low: 58 °F

    Mostly Clear
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 58. Calm wind.
Monday
Patchy fog before 8am. Otherwise, sunny, with a high near 81. Calm wind becoming northwest around 6 mph in the afternoon.
Monday Night
A slight chance of showers before 3am, then a slight chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 63. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.
Tuesday
Showers likely and possibly a thunderstorm, mainly after 1pm. Partly sunny, with a high near 80. West wind 5 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of thunderstorms before 7pm. Partly cloudy, with a low around 58. Light north wind. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 77. Light north wind.
Wednesday Night
Mostly clear, with a low around 55. Calm wind.
Thursday
Mostly sunny, with a high near 79. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 58. Light southwest wind.
Friday
A 30 percent chance of showers, mainly after 1pm. Mostly sunny, with a high near 79. Light southwest wind increasing to 5 to 9 mph in the morning.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60. Southwest wind 3 to 7 mph.
Saturday
Mostly sunny, with a high near 79. Light west wind becoming northwest 5 to 9 mph in the morning.
Saturday Night
Partly cloudy, with a low around 58. Northwest wind around 6 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 79. Calm wind becoming southeast around 5 mph in the afternoon.
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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:
10:41 pm CDT Aug 16, 2026
Forecast Valid:
10pm CDT Aug 16, 2026-6pm CDT Aug 23, 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