Green Lake, WI Weather & Growing Conditions
Overnight
58°F
Chance Rain Showers
A chance of rain showers. Cloudy, with a low around 58. South wind around 10 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 58°F | Chance Rain Showers | 10 mph S | 34% |
| Wednesday | 62°F | Chance Rain Showers | 10 to 15 mph S | 44% |
| Wednesday Night | 47°F | Rain Showers | 15 mph SW | 75% |
| Thursday | 53°F | Rain Showers Likely then Chance Light Rain | 10 to 15 mph NW | 72% |
| Thursday Night | 37°F | Mostly Cloudy | 15 mph N | 9% |
| Friday | 46°F | Partly Sunny | 5 to 15 mph N | 3% |
| Friday Night | 30°F | Mostly Clear | 0 to 5 mph N | 0% |
| Saturday | 49°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 34°F | Mostly Clear | 5 mph W | 3% |
| Sunday | 54°F | Sunny | 5 to 10 mph W | 8% |
| Sunday Night | 35°F | Mostly Clear | 5 mph W | 1% |
| Monday | 59°F | Mostly Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 5 to 10 mph W | 0% |
| Tuesday | 58°F | Sunny | 5 to 10 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Green Lake, WI
Last spring frost
May 8
First fall frost
Oct 2
Growing season
144 days
Hardiness zone
5a
Explore more for Green Lake, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Markesan, Wi (9.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.