Grand Marsh, WI Weather & Growing Conditions
Overnight
52°F
Showers And Thunderstorms
Showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy. Low around 52, with temperatures rising to around 54 overnight. East wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Showers And Thunderstorms | 14 mph E | 99% |
| Saturday | 63°F | Showers And Thunderstorms | 8 to 13 mph E | 92% |
| Saturday Night | 50°F | Showers And Thunderstorms Likely | 9 to 13 mph NE | 71% |
| Sunday | 67°F | Partly Sunny | 13 to 16 mph NE | 14% |
| Sunday Night | 44°F | Mostly Cloudy | 9 to 14 mph NE | 2% |
| Monday | 61°F | Mostly Cloudy | 12 mph NE | 3% |
| Monday Night | 42°F | Mostly Cloudy | 6 to 9 mph NE | 4% |
| Tuesday | 61°F | Mostly Sunny | 7 to 12 mph NE | 4% |
| Tuesday Night | 41°F | Mostly Clear | 3 to 7 mph NE | 3% |
| Wednesday | 64°F | Sunny | 3 to 8 mph NE | 1% |
| Wednesday Night | 43°F | Mostly Clear | 1 to 5 mph NE | 1% |
| Thursday | 67°F | Mostly Sunny | 2 to 6 mph NE | 3% |
| Thursday Night | 44°F | Partly Cloudy | 2 mph NE | 3% |
| Friday | 70°F | Mostly Sunny | 1 to 5 mph E | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Grand Marsh, WI
Last spring frost
May 9
First fall frost
Oct 3
Growing season
147 days
Hardiness zone
4b
Explore more for Grand Marsh, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Friendship, Wi (9.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.