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

45°F

7°C

Humidity 70%
Wind Speed Calm
Barometer 29.90 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 30 Mar 12:15 am CDT
Extended Forecast for

Blair WI

  • Overnight

    Overnight: Partly cloudy, with a low around 40. South wind around 5 mph becoming calm.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 78. Calm wind becoming southeast 5 to 8 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of showers, with thunderstorms also possible after 10pm. Mostly cloudy, with a low around 44. East wind 6 to 8 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 56. East wind 7 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 56 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 28. Northwest wind 7 to 11 mph, with gusts as high as 22 mph.

    Low: 28 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 48. North wind 6 to 9 mph becoming east in the afternoon.

    High: 48 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow showers. Mostly cloudy, with a low around 28. East wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 28 °F

    Chance Snow
    Showers

  • Thursday

    Thursday: Rain and snow showers likely. Mostly cloudy, with a high near 41. Breezy, with an east wind 15 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    High: 41 °F

    Rain/Snow
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: A chance of rain and snow showers before 1am, then a slight chance of snow showers. Mostly cloudy, with a low around 28. East wind 7 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    Low: 28 °F

    Chance
    Rain/Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 40. South wind around 5 mph becoming calm.
Monday
Mostly sunny, with a high near 78. Calm wind becoming southeast 5 to 8 mph in the afternoon.
Monday Night
A chance of showers, with thunderstorms also possible after 10pm. Mostly cloudy, with a low around 44. East wind 6 to 8 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 56. East wind 7 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Mostly cloudy, with a low around 28. Northwest wind 7 to 11 mph, with gusts as high as 22 mph.
Wednesday
Partly sunny, with a high near 48. North wind 6 to 9 mph becoming east in the afternoon.
Wednesday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 28. East wind 10 to 14 mph, with gusts as high as 24 mph.
Thursday
Rain and snow showers likely. Mostly cloudy, with a high near 41. Breezy, with an east wind 15 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Thursday Night
A chance of rain and snow showers before 1am, then a slight chance of snow showers. Mostly cloudy, with a low around 28. East wind 7 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Friday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 49. East wind 7 to 11 mph, with gusts as high as 20 mph.
Friday Night
Showers likely. Mostly cloudy, with a low around 35. East wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Saturday
Showers likely. Mostly cloudy, with a high near 52. Southeast wind 13 to 15 mph becoming northwest in the afternoon. Chance of precipitation is 70%.
Saturday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 33. Breezy, with a northwest wind 14 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Sunday
A slight chance of rain and snow showers. Partly sunny, with a high near 48. Breezy, with a west wind 15 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Blair WI
 44.3°N 91.25°W
Last Update:
8:21 pm CDT Mar 29, 2026
Forecast Valid:
12am CDT Mar 30, 2026-6pm CDT Apr 5, 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