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.

Mostly Cloudy

65°F

18°C

Humidity 100%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 65°F (18°C)
Visibility 7.00 mi
Last update 15 Aug 4:35 am CDT
Extended Forecast for

5 Miles NE Merrillan WI

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a steady temperature around 68. South wind around 5 mph.

    Low: 68 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms before 11am, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 89. Heat index values as high as 95. South wind 3 to 7 mph. Chance of precipitation is 20%.

    High: 89 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms, mainly after 7pm. Mostly cloudy, with a low around 67. South wind 3 to 5 mph. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 67 °F

    Chance
    T-storms

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 83. Calm wind becoming southeast around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 83 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 10pm, then showers and thunderstorms likely between 10pm and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 62. Light east wind. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 62 °F

    T-storms
    Likely

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 74. East wind around 7 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. East wind around 6 mph. Chance of precipitation is 60%.

    Low: 62 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. South wind around 6 mph.

    High: 81 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 62. East wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a steady temperature around 68. South wind around 5 mph.
Friday
A slight chance of showers and thunderstorms before 11am, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 89. Heat index values as high as 95. South wind 3 to 7 mph. Chance of precipitation is 20%.
Friday Night
A 50 percent chance of showers and thunderstorms, mainly after 7pm. Mostly cloudy, with a low around 67. South wind 3 to 5 mph. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 83. Calm wind becoming southeast around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers likely and possibly a thunderstorm before 10pm, then showers and thunderstorms likely between 10pm and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 62. Light east wind. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 74. East wind around 7 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. East wind around 6 mph. Chance of precipitation is 60%.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. South wind around 6 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 62. East wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 77. Northeast wind 3 to 5 mph.
Tuesday Night
Partly cloudy, with a low around 60. Calm wind.
Wednesday
Mostly sunny, with a high near 79. Light northeast wind.
Wednesday Night
Mostly clear, with a low around 58. Calm wind.
Thursday
Sunny, with a high near 80. Calm wind.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NE Merrillan WI
 44.49°N 90.76°W
Last Update:
4:29 am CDT Aug 15, 2025
Forecast Valid:
4am CDT Aug 15, 2025-6pm CDT Aug 21, 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