Birnamwood, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Birnamwood, a village in Shawano County, Wisconsin.
Today
79°F
Mostly Cloudy then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 1pm and 2pm. Mostly cloudy, with a high near 79. Heat index values as high as 79. West wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
7-day forecast for Birnamwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 8 to 13 mph W | 16% |
| Tonight | 56°F | Slight Chance Showers And Thunderstorms then Patchy Fog | 3 to 8 mph WNW | 15% |
| Wednesday | 78°F | Patchy Fog then Partly Sunny | 1 to 7 mph NNW | 6% |
| Wednesday Night | 52°F | Partly Cloudy | 1 to 5 mph WNW | 1% |
| Thursday | 82°F | Mostly Sunny | 1 to 7 mph WSW | 0% |
| Thursday Night | 57°F | Mostly Clear | 6 mph SSW | 0% |
| Friday | 84°F | Sunny | 3 to 13 mph SW | 14% |
| Friday Night | 62°F | Slight Chance Showers And Thunderstorms | 6 to 12 mph SW | 21% |
| Saturday | 84°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 12 mph SW | 16% |
| Saturday Night | 62°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 to 9 mph WSW | 42% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 3 to 10 mph WNW | 42% |
| Sunday Night | 60°F | Chance Showers And Thunderstorms | 2 to 9 mph NNW | 34% |
| Monday | 81°F | Chance Showers And Thunderstorms | 3 to 8 mph S | 29% |
| Monday Night | 59°F | Chance Showers And Thunderstorms | 3 to 8 mph NNW | 29% |
Forecast source: National Weather Service (api.weather.gov) for Birnamwood (44.932, -89.210). Updated through the day.
Growing snapshot for Birnamwood
Last spring frost
May 14
First fall frost
Sep 30
Growing season
139 days
Hardiness zone
4b
More local growing data for Birnamwood: nearby ZIP 54414 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
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Krakow
Leopolis
Mattoon
Paac Ciinak
Pella
Pulaski
Pulcifer
Shawano
Thornton
Tigerton
Tilleda
Wittenberg
Climate data from the nearest NOAA station, Antigo, Wi (14.2 mi from Birnamwood). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.