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

46°F

8°C

Humidity 69%
Wind Speed Calm
Barometer 30.21 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 18 Oct 7:35 pm CDT
Extended Forecast for

Blair WI

  • Tonight

    Tonight: Mostly clear, with a low around 37. South wind around 6 mph becoming calm in the evening.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 64. Light south wind.

    High: 64 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 66. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 66 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70. Calm wind becoming south around 6 mph in the morning.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 70. Calm wind becoming southeast around 5 mph.

    High: 70 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48. Light southeast wind.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 37. South wind around 6 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 64. Light south wind.
Monday Night
Partly cloudy, with a low around 38. Calm wind.
Tuesday
Sunny, with a high near 66. Calm wind becoming south 5 to 7 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 41. Calm wind.
Wednesday
Sunny, with a high near 70. Calm wind becoming south around 6 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 47. Calm wind.
Thursday
Mostly sunny, with a high near 70. Calm wind becoming southeast around 5 mph.
Thursday Night
Mostly clear, with a low around 48. Light southeast wind.
Friday
Mostly sunny, with a high near 68. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 53. Southeast wind 8 to 10 mph, with gusts as high as 21 mph.
Saturday
Mostly cloudy, with a high near 69. South wind 10 to 13 mph, with gusts as high as 23 mph.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 52. Southwest wind 3 to 8 mph. Winds could gust as high as 20 mph.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 65. West wind 3 to 7 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:
3:26 pm CDT Oct 18, 2026
Forecast Valid:
8pm CDT Oct 18, 2026-6pm CDT Oct 25, 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