Dunbar, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dunbar, a community in Marinette County, Wisconsin.
Today
78°F
Partly Sunny then Chance Showers And Thunderstorms
A slight chance of rain showers between noon and 1pm, then a chance of showers and thunderstorms between 1pm and 3pm, then a slight chance of showers and thunderstorms between 3pm and 5pm. Partly sunny. High near 78, with temperatures falling to around 76 in the afternoon. Heat index values as high as 77. West southwest wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Dunbar
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 9 mph WSW | 29% |
| Tonight | 55°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 1 to 5 mph N | 17% |
| Wednesday | 77°F | Patchy Fog then Mostly Sunny | 3 mph NW | 2% |
| Wednesday Night | 52°F | Mostly Clear then Areas Of Fog | 0 to 3 mph SW | 5% |
| Thursday | 82°F | Patchy Fog then Sunny | 1 to 7 mph SW | 2% |
| Thursday Night | 59°F | Mostly Clear | 6 mph SSW | 1% |
| Friday | 85°F | Sunny | 5 to 9 mph SW | 8% |
| Friday Night | 62°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 31% |
| Saturday | 83°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 7 mph WSW | 26% |
| Saturday Night | 60°F | Chance Showers And Thunderstorms | 1 to 6 mph WSW | 45% |
| Sunday | 82°F | Chance Showers And Thunderstorms | 2 to 7 mph W | 45% |
| Sunday Night | 57°F | Chance Showers And Thunderstorms | 1 to 6 mph WNW | 34% |
| Monday | 79°F | Chance Showers And Thunderstorms | 1 to 5 mph NNW | 25% |
| Monday Night | 57°F | Chance Showers And Thunderstorms | 1 to 5 mph NNW | 26% |
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 Aug 4, 2026.