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Black River Falls, WI Weather & Growing Conditions

Today
62°F
Showers And Thunderstorms
Rain showers likely before 1pm, then showers and thunderstorms. Cloudy, with a high near 62. East wind around 7 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Today 62°F Showers And Thunderstorms 7 mph E 75%
Tonight 49°F Chance Rain Showers then Cloudy 3 to 7 mph NE 37%
Sunday 67°F Partly Sunny 5 to 9 mph NE 2%
Sunday Night 41°F Mostly Cloudy 7 mph NE 2%
Monday 64°F Mostly Cloudy 5 to 8 mph E 4%
Monday Night 40°F Mostly Cloudy 2 to 6 mph E 4%
Tuesday 64°F Mostly Sunny 3 to 7 mph E 4%
Tuesday Night 39°F Mostly Clear 3 mph E 2%
Wednesday 68°F Sunny 1 to 5 mph E 1%
Wednesday Night 41°F Mostly Clear 2 mph NE 2%
Thursday 69°F Mostly Sunny 0 to 3 mph NE 5%
Thursday Night 43°F Partly Cloudy 1 mph NE 3%
Friday 72°F Mostly Sunny 0 to 3 mph E 3%
Friday Night 44°F Partly Cloudy 2 mph E 3%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Black River Falls, WI

Last spring frost
May 9
First fall frost
Oct 1
Growing season
143 days
Hardiness zone
4b

Explore more for Black River Falls, WI: full frost dates · planting calendar · Wisconsin frost dates

Climate data from the nearest NOAA station, Blair, Wi (22.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.