Harman US

Birnamwood, WI Weather & Growing Conditions

This Afternoon
61°F
Rain Showers Likely
Rain showers likely. Cloudy, with a high near 61. East wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 61°F Rain Showers Likely 8 mph E 55%
Tonight 50°F Chance Rain Showers then Mostly Cloudy 8 mph NE 52%
Sunday 65°F Partly Sunny 8 to 14 mph NE 0%
Sunday Night 43°F Mostly Cloudy 12 mph NE 0%
Monday 60°F Mostly Cloudy 12 mph ENE 1%
Monday Night 37°F Mostly Cloudy 8 mph ENE 1%
Tuesday 62°F Mostly Sunny 7 to 12 mph ENE 3%
Tuesday Night 42°F Mostly Clear 5 to 9 mph ENE 2%
Wednesday 65°F Mostly Sunny 3 to 10 mph ENE 2%
Wednesday Night 45°F Partly Cloudy 2 to 7 mph ENE 1%
Thursday 67°F Mostly Sunny 2 to 6 mph E 9%
Thursday Night 47°F Mostly Cloudy 0 to 3 mph ENE 9%
Friday 71°F Partly Sunny 3 mph ENE 5%
Friday Night 48°F Partly Cloudy 0 to 3 mph ENE 4%

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

Growing snapshot for Birnamwood, WI

Last spring frost
May 14
First fall frost
Sep 30
Growing season
139 days
Hardiness zone
4b

Explore more for Birnamwood, WI: full frost dates · planting calendar · Wisconsin frost dates

Climate data from the nearest NOAA station, Antigo, Wi (14.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.