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

37°F

3°C

Humidity 83%
Wind Speed Calm
Barometer 29.87 in
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 19 Mar 11:15 pm CDT
Extended Forecast for

Blair WI

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. South wind around 8 mph becoming west after midnight.

    Low: 43 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 60. Northwest wind 6 to 8 mph.

    High: 60 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38. Light and variable wind.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 72. South wind 6 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.

    High: 72 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 42. Light and variable wind becoming northeast 5 to 8 mph in the evening.

    Low: 42 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 48. North wind 9 to 13 mph, with gusts as high as 21 mph.

    High: 48 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 23. North wind 5 to 9 mph.

    Low: 23 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 46. Light and variable wind becoming north around 6 mph in the morning.

    High: 46 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32. South wind 3 to 7 mph.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 43. South wind around 8 mph becoming west after midnight.
Friday
Partly sunny, with a high near 60. Northwest wind 6 to 8 mph.
Friday Night
Mostly cloudy, with a low around 38. Light and variable wind.
Saturday
Partly sunny, with a high near 72. South wind 6 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.
Saturday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 42. Light and variable wind becoming northeast 5 to 8 mph in the evening.
Sunday
A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 48. North wind 9 to 13 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 23. North wind 5 to 9 mph.
Monday
Mostly sunny, with a high near 46. Light and variable wind becoming north around 6 mph in the morning.
Monday Night
Mostly cloudy, with a low around 32. South wind 3 to 7 mph.
Tuesday
Mostly cloudy, with a high near 52. South wind 6 to 9 mph becoming west in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 32. West wind around 6 mph becoming east after midnight.
Wednesday
Mostly cloudy, with a high near 50. Southeast wind 7 to 10 mph, with gusts as high as 18 mph.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 35. Southeast wind 8 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 51. Breezy, with a northwest wind 11 to 16 mph, with gusts as high as 24 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Blair WI
 44.3°N 91.25°W
Last Update:
9:41 pm CDT Mar 19, 2026
Forecast Valid:
11pm CDT Mar 19, 2026-6pm CDT Mar 26, 2026
 
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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