Markesan, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Markesan, a city in Green Lake County, Wisconsin.
Tonight
56°F
Rain Showers
Rain showers. Cloudy, with a low around 56. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Markesan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Rain Showers | 10 to 15 mph S | 92% |
| Wednesday | 62°F | Rain Showers | 10 to 15 mph S | 89% |
| Wednesday Night | 45°F | Chance Rain Showers then Light Rain | 10 mph SW | 75% |
| Thursday | 53°F | Light Rain | 5 to 10 mph W | 86% |
| Thursday Night | 36°F | Chance Light Rain then Mostly Cloudy | 10 to 15 mph N | 29% |
| Friday | 47°F | Slight Chance Light Rain then Partly Sunny | 5 to 15 mph N | 17% |
| Friday Night | 29°F | Partly Cloudy | 0 to 5 mph N | 2% |
| Saturday | 51°F | Mostly Sunny | 0 to 5 mph W | 0% |
| Saturday Night | 32°F | Partly Cloudy | 0 to 5 mph W | 9% |
| Sunday | 57°F | Slight Chance Light Rain | 5 to 10 mph W | 16% |
| Sunday Night | 33°F | Mostly Clear | 5 mph W | 3% |
| Monday | 59°F | Mostly Sunny | 5 to 15 mph SW | 2% |
| Monday Night | 37°F | Partly Cloudy | 5 to 10 mph W | 0% |
| Tuesday | 59°F | Sunny | 5 to 10 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Markesan (43.711, -88.991). Updated through the day.
Growing snapshot for Markesan
Last spring frost
May 8
First fall frost
Oct 2
Growing season
144 days
Hardiness zone
5a
More local growing data for Markesan: nearby ZIP 53946 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Markesan, Wi (1.6 mi from Markesan). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.