Montello, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Montello, a city in Marquette County, Wisconsin.
Overnight
55°F
Showers And Thunderstorms
Showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 55. East wind around 10 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast for Montello
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Showers And Thunderstorms | 10 mph E | 97% |
| Saturday | 64°F | Showers And Thunderstorms | 5 to 10 mph E | 86% |
| Saturday Night | 53°F | Showers And Thunderstorms | 10 mph NE | 75% |
| Sunday | 66°F | Slight Chance Rain Showers then Partly Sunny | 10 to 15 mph NE | 18% |
| Sunday Night | 46°F | Mostly Cloudy | 10 mph NE | 2% |
| Monday | 62°F | Mostly Cloudy | 10 to 15 mph NE | 13% |
| Monday Night | 43°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph NE | 17% |
| Tuesday | 61°F | Slight Chance Rain Showers then Partly Sunny | 10 mph NE | 17% |
| Tuesday Night | 43°F | Partly Cloudy | 5 mph NE | 5% |
| Wednesday | 64°F | Mostly Sunny | 5 to 10 mph NE | 4% |
| Wednesday Night | 45°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Thursday | 68°F | Mostly Sunny | 0 to 5 mph NE | 4% |
| Thursday Night | 46°F | Partly Cloudy | 0 mph | 6% |
| Friday | 70°F | Mostly Sunny | 0 to 5 mph N | 3% |
Forecast source: National Weather Service (api.weather.gov) for Montello (43.794, -89.333). Updated through the day.
Growing snapshot for Montello
Last spring frost
May 3
First fall frost
Oct 5
Growing season
153 days
Hardiness zone
5a
More local growing data for Montello: nearby ZIP 53949 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Montello, Wi (1.1 mi from Montello). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.