Dunbar, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dunbar, a community in Marinette County, Wisconsin.
Overnight
57°F
Chance Rain Showers
A chance of rain showers and patchy fog before 1am, then areas of fog and a chance of rain showers between 1am and 2am, then rain showers and widespread fog. Cloudy. Low around 57, with temperatures rising to around 59 overnight. South southeast wind around 7 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Dunbar
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Chance Rain Showers | 7 mph SSE | 99% |
| Wednesday | 63°F | Rain Showers | 6 to 9 mph SSE | 95% |
| Wednesday Night | 44°F | Rain Showers | 3 to 8 mph SSW | 82% |
| Thursday | 51°F | Rain Showers | 5 to 15 mph NW | 97% |
| Thursday Night | 32°F | Slight Chance Rain Showers then Cloudy | 12 to 16 mph N | 23% |
| Friday | 43°F | Partly Sunny | 7 to 12 mph N | 8% |
| Friday Night | 25°F | Partly Cloudy | 1 to 5 mph NNW | 3% |
| Saturday | 49°F | Mostly Sunny | 3 mph W | 1% |
| Saturday Night | 29°F | Partly Cloudy | 3 mph W | 12% |
| Sunday | 53°F | Mostly Sunny | 3 to 9 mph WNW | 13% |
| Sunday Night | 31°F | Partly Cloudy | 6 mph W | 4% |
| Monday | 54°F | Mostly Sunny | 3 to 9 mph WSW | 1% |
| Monday Night | 35°F | Partly Cloudy | 7 mph W | 2% |
| Tuesday | 54°F | Mostly Sunny | 6 to 10 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Dunbar (45.647, -88.180). Updated through the day.
Growing snapshot for Dunbar
Last spring frost
May 24
First fall frost
Sep 30
Growing season
128 days
Hardiness zone
4b
More local growing data for Dunbar: nearby ZIP 54119 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Goodman Sanitary Dist, Wi (8 mi from Dunbar). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.