Dunbar, WI Weather & Growing Conditions
Today
78°F
Mostly Cloudy 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 4pm, then a slight chance of showers and thunderstorms between 4pm and 5pm. Mostly cloudy. High near 78, with temperatures falling to around 76 in the afternoon. Heat index values as high as 77. West 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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 to 9 mph W | 29% |
| Tonight | 55°F | Chance Showers And Thunderstorms then Mostly Cloudy | 1 to 5 mph N | 17% |
| Wednesday | 77°F | Mostly Sunny | 3 mph NNW | 3% |
| Wednesday Night | 52°F | Mostly Clear then Patchy Fog | 0 to 3 mph S | 5% |
| Thursday | 82°F | Patchy Fog then Sunny | 1 to 6 mph SW | 2% |
| Thursday Night | 59°F | Mostly Clear | 5 mph SSW | 1% |
| Friday | 85°F | Sunny | 3 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 SW | 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 NW | 34% |
| Monday | 79°F | Chance Showers And Thunderstorms | 1 to 6 mph N | 25% |
| Monday Night | 57°F | Chance Showers And Thunderstorms | 1 to 6 mph NNW | 26% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Dunbar, WI
Last spring frost
May 24
First fall frost
Sep 30
Growing season
128 days
Hardiness zone
4b
Explore more for Dunbar, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Goodman Sanitary Dist, Wi (8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.