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

Hazardous Weather Conditions

Current conditions at

Black River Falls Area Airport (KBCK)

Lat: 44.25°NLon: 90.85°WElev: 830ft.

73°F

23°C

Humidity 86%
Wind Speed NW 7 mph
Barometer 29.92 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 7 Aug 5:35 pm CDT
Extended Forecast for

Merrillan WI

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 72. West wind around 5 mph.

    High: 72 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 56. Northwest wind 3 to 6 mph.

    Low: 56 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82. Northwest wind 3 to 6 mph.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 84. Light and variable wind. Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms, then a chance of showers after 1am. Partly cloudy, with a low around 60. Calm wind. Chance of precipitation is 30%.

    Low: 60 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 82. Light east wind.

    High: 82 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 72. West wind around 5 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 56. Northwest wind 3 to 6 mph.
Saturday
Sunny, with a high near 82. Northwest wind 3 to 6 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 59. Calm wind.
Sunday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 84. Light and variable wind. Chance of precipitation is 30%.
Monday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Partly cloudy, with a low around 60. Calm wind. Chance of precipitation is 30%.
Tuesday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 82. Light east wind.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57. Calm wind.
Wednesday
Mostly sunny, with a high near 81. Calm wind becoming northwest around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 54. Light north wind.
Thursday
Mostly sunny, with a high near 78. Calm wind becoming northwest around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 53. Calm wind.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 77. Calm wind becoming south around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Merrillan WI
 44.45°N 90.82°W
Last Update:
5:26 pm CDT Aug 7, 2026
Forecast Valid:
5pm CDT Aug 7, 2026-6pm CDT Aug 14, 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