Birchwood, WI Weather & Growing Conditions
Today
59°F
Light Rain Likely
Rain likely. Cloudy. High near 59, with temperatures falling to around 53 in the afternoon. South wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 59°F | Light Rain Likely | 5 mph S | 66% |
| Tonight | 40°F | Light Rain | 0 to 10 mph W | 80% |
| Thursday | 46°F | Slight Chance Light Rain then Cloudy | 10 to 15 mph N | 23% |
| Thursday Night | 29°F | Mostly Cloudy | 0 to 10 mph N | 4% |
| Friday | 45°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Friday Night | 25°F | Mostly Clear | 0 mph | 0% |
| Saturday | 47°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Saturday Night | 31°F | Partly Cloudy | 0 to 5 mph WSW | 9% |
| Sunday | 50°F | Mostly Sunny | 5 to 10 mph W | 7% |
| Sunday Night | 32°F | Partly Cloudy | 0 to 5 mph SW | 0% |
| Monday | 55°F | Mostly Sunny | 0 to 10 mph SW | 1% |
| Monday Night | 35°F | Partly Cloudy | 0 to 5 mph W | 1% |
| Tuesday | 53°F | Mostly Sunny | 0 to 5 mph WNW | 3% |
| Tuesday Night | 33°F | Mostly Cloudy | 0 mph | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Birchwood, WI
Last spring frost
May 9
First fall frost
Sep 29
Growing season
140 days
Hardiness zone
4a
Explore more for Birchwood, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Weyerhaeuser 1N, Wi (13.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.