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.

82°F

28°C

Humidity 59%
Wind Speed NW 7 mph
Barometer 30.10 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 7 Jul 11:35 am CDT
Extended Forecast for

Blair WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 87. Southwest wind 5 to 7 mph.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 68. Light south wind.

    Low: 68 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. High near 86. Light and variable wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 86 °F

    Mostly Cloudy
    then T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 3am. Mostly cloudy, with a low around 63. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    T-storms
    Likely then
    Showers
    Likely

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 81. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 81 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 60. Calm wind. Chance of precipitation is 10%.

    Low: 60 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 83. Calm wind becoming east around 5 mph.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 85. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 85 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 87. Southwest wind 5 to 7 mph.
Tonight
A 20 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 68. Light south wind.
Wednesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. High near 86. Light and variable wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and thunderstorms likely, mainly before 3am. Mostly cloudy, with a low around 63. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 81. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 30%.
Thursday Night
A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 60. Calm wind. Chance of precipitation is 10%.
Friday
Mostly sunny, with a high near 83. Calm wind becoming east around 5 mph.
Friday Night
Partly cloudy, with a low around 60. Calm wind.
Saturday
Sunny, with a high near 85. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 62. Light south wind.
Sunday
Sunny, with a high near 89. Calm wind becoming southwest 5 to 7 mph in the morning.
Sunday Night
Mostly clear, with a low around 65. Southwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 91. Calm wind becoming southwest 5 to 8 mph in the morning.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Blair WI
 44.3°N 91.22°W
Last Update:
11:46 am CDT Jul 7, 2026
Forecast Valid:
12pm CDT Jul 7, 2026-6pm CDT Jul 13, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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