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.

Fair

85°F

29°C

Humidity 56%
Wind Speed S 7 mph
Barometer 29.87 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 15 Jul 6:35 pm CDT
Extended Forecast for

Merrillan WI

  • Tonight

    Tonight: A slight chance of showers between 3am and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 66. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 66 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1pm. High near 80. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 80 °F

    Chance
    T-storms then
    T-storms

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers after 1am. Mostly cloudy, with a low around 54. North wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Showers
    Likely

  • Thursday

    Thursday: Mostly sunny, with a high near 73. North wind around 7 mph.

    High: 73 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 75. Calm wind becoming south around 6 mph in the morning.

    High: 75 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 50%.

    Low: 60 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76. Light and variable wind becoming south around 5 mph in the morning.

    High: 76 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 59. Light north wind.

    Low: 59 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
A slight chance of showers between 3am and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 66. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.
Wednesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1pm. High near 80. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Wednesday Night
Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers after 1am. Mostly cloudy, with a low around 54. North wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Mostly sunny, with a high near 73. North wind around 7 mph.
Thursday Night
Mostly clear, with a low around 51. Calm wind.
Friday
Mostly sunny, with a high near 75. Calm wind becoming south around 6 mph in the morning.
Friday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 50%.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76. Light and variable wind becoming south around 5 mph in the morning.
Saturday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 59. Light north wind.
Sunday
Mostly sunny, with a high near 80. Calm wind becoming east around 5 mph in the afternoon.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 59. Light east wind.
Monday
A 30 percent chance of showers. Mostly sunny, with a high near 81. Southeast wind 5 to 7 mph.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Southeast wind 3 to 5 mph.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. Southeast wind 3 to 6 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Merrillan WI
 44.45°N 90.85°W
Last Update:
5:59 pm CDT Jul 15, 2025
Forecast Valid:
6pm CDT Jul 15, 2025-6pm CDT Jul 22, 2025
 
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