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.

Overcast

45°F

7°C

Humidity 69%
Wind Speed Calm
Barometer 30.15 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 9 Apr 8:35 pm CDT
Extended Forecast for

Blair WI

  • Tonight

    Tonight: A 50 percent chance of showers, mainly before 11pm. Mostly cloudy, with a low around 33. North wind 3 to 6 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F

    Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 53. Northwest wind 6 to 9 mph.

    High: 53 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 30. Calm wind.

    Low: 30 °F

    Clear

  • Saturday

    Saturday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 58. Light southeast wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 58 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 48. Southeast wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 48 °F

    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 72. Breezy, with a south wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 72 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 58. Southwest wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.

    Low: 58 °F

    Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 77. Southwest wind around 8 mph.

    High: 77 °F

    Mostly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 55. South wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.

    Low: 55 °F

    Showers

Detailed Forecast

Tonight
A 50 percent chance of showers, mainly before 11pm. Mostly cloudy, with a low around 33. North wind 3 to 6 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday
Partly sunny, then gradually becoming sunny, with a high near 53. Northwest wind 6 to 9 mph.
Friday Night
Clear, with a low around 30. Calm wind.
Saturday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 58. Light southeast wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm. Low around 48. Southeast wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers and possibly a thunderstorm. High near 72. Breezy, with a south wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 58. Southwest wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 77. Southwest wind around 8 mph.
Monday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 55. South wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.
Tuesday
A slight chance of showers and thunderstorms, then showers likely after 1pm. Partly sunny, with a high near 73. South wind 6 to 10 mph. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 47. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Wednesday
A 50 percent chance of showers. Mostly cloudy, with a high near 63. Southwest wind around 11 mph, with gusts as high as 20 mph.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 43. Southwest wind around 7 mph.
Thursday
A 20 percent chance of showers. Sunny, with a high near 71. Southwest wind 6 to 13 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Blair WI
 44.3°N 91.25°W
Last Update:
6:16 pm CDT Apr 9, 2026
Forecast Valid:
8pm CDT Apr 9, 2026-6pm CDT Apr 16, 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