Port Wing, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Port Wing, a community in Bayfield County, Wisconsin.
This Afternoon
63°F
Light Rain
Rain and patchy fog. Cloudy. High near 63, with temperatures falling to around 57 in the afternoon. North wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Port Wing
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Light Rain | 5 mph N | 83% |
| Tonight | 49°F | Rain | 5 to 15 mph NE | 85% |
| Wednesday | 52°F | Rain | 10 to 15 mph N | 82% |
| Wednesday Night | 42°F | Light Rain | 5 to 15 mph N | 87% |
| Thursday | 45°F | Light Rain Likely then Mostly Cloudy | 15 mph N | 72% |
| Thursday Night | 33°F | Mostly Cloudy | 10 to 15 mph NE | 4% |
| Friday | 42°F | Partly Sunny | 5 to 10 mph NE | 2% |
| Friday Night | 30°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Saturday | 48°F | Mostly Sunny | 5 to 10 mph SW | 1% |
| Saturday Night | 37°F | Partly Cloudy | 5 to 10 mph SW | 12% |
| Sunday | 51°F | Mostly Sunny | 10 mph W | 11% |
| Sunday Night | 37°F | Partly Cloudy | 5 mph SW | 3% |
| Monday | 52°F | Partly Sunny | 5 to 15 mph SW | 1% |
| Monday Night | 38°F | Partly Cloudy | 10 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Port Wing (46.776, -91.381). Updated through the day.
Growing snapshot for Port Wing
Last spring frost
May 31
First fall frost
Oct 2
Growing season
123 days
Hardiness zone
5a
More local growing data for Port Wing: nearby ZIP 54865 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Port Wing, Wi (1.6 mi from Port Wing). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.