Grand Marsh, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grand Marsh, a community in Adams County, Wisconsin.
This Afternoon
67°F
Rain Showers Likely
Rain showers likely. Cloudy, with a high near 67. South wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Grand Marsh
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Rain Showers Likely | 14 mph S | 56% |
| Tonight | 56°F | Showers And Thunderstorms | 12 mph S | 94% |
| Wednesday | 60°F | Rain Showers | 9 to 13 mph S | 77% |
| Wednesday Night | 44°F | Rain Showers Likely | 13 mph SW | 72% |
| Thursday | 52°F | Rain Showers | 10 mph W | 83% |
| Thursday Night | 35°F | Chance Rain Showers then Mostly Cloudy | 10 mph N | 26% |
| Friday | 48°F | Partly Sunny | 3 to 9 mph N | 9% |
| Friday Night | 29°F | Partly Cloudy | 1 mph N | 1% |
| Saturday | 52°F | Mostly Sunny | 0 to 5 mph W | 1% |
| Saturday Night | 31°F | Partly Cloudy | 1 to 5 mph W | 10% |
| Sunday | 57°F | Slight Chance Rain Showers | 5 to 9 mph W | 17% |
| Sunday Night | 32°F | Mostly Clear | 5 mph W | 4% |
| Monday | 59°F | Mostly Sunny | 3 to 10 mph SW | 1% |
| Monday Night | 37°F | Partly Cloudy | 7 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Grand Marsh (43.885, -89.707). Updated through the day.
Growing snapshot for Grand Marsh
Last spring frost
May 9
First fall frost
Oct 3
Growing season
147 days
Hardiness zone
4b
More local growing data for Grand Marsh: nearby ZIP 53936 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Friendship, Wi (9.6 mi from Grand Marsh). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.