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

Black River Falls Area Airport (KBCK)

Lat: 44.25°NLon: 90.85°WElev: 830ft.

Fair

17°F

-8°C

Humidity 99%
Wind Speed Calm
Barometer 30.29 in
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 20 Apr 4:55 am CDT
Extended Forecast for

6 Miles ESE Merrillan WI

  • Today

    Today: Widespread frost before 7am. Otherwise, mostly sunny, with a high near 55. Light and variable wind becoming southwest 6 to 11 mph in the morning.

    High: 55 °F

    Frost then
    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 39. South wind 3 to 8 mph. Winds could gust as high as 20 mph.

    Low: 39 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 73. Calm wind becoming northwest 5 to 8 mph in the afternoon.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 39. Calm wind.

    Low: 39 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74. Calm wind becoming southeast 5 to 7 mph in the morning.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56. Southeast wind around 6 mph.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 77. South wind 6 to 13 mph, with gusts as high as 28 mph.

    High: 77 °F

    Partly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 50. South wind 7 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    Low: 50 °F

    Showers

  • Friday

    Friday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 64. West wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 64 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Widespread frost before 7am. Otherwise, mostly sunny, with a high near 55. Light and variable wind becoming southwest 6 to 11 mph in the morning.
Tonight
Partly cloudy, with a low around 39. South wind 3 to 8 mph. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 73. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Tuesday Night
Clear, with a low around 39. Calm wind.
Wednesday
Sunny, with a high near 74. Calm wind becoming southeast 5 to 7 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 56. Southeast wind around 6 mph.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 77. South wind 6 to 13 mph, with gusts as high as 28 mph.
Thursday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 50. South wind 7 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Friday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 64. West wind 7 to 10 mph, with gusts as high as 21 mph.
Friday Night
Partly cloudy, with a low around 37. Northwest wind 3 to 7 mph. Winds could gust as high as 18 mph.
Saturday
Mostly sunny, with a high near 61. Northwest wind 3 to 7 mph.
Saturday Night
Mostly cloudy, with a low around 37. Northwest wind around 5 mph becoming calm in the evening.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 61. Calm wind becoming west around 6 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ESE Merrillan WI
 44.42°N 90.73°W
Last Update:
5:07 am CDT Apr 20, 2026
Forecast Valid:
5am CDT Apr 20, 2026-6pm CDT Apr 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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