Montello, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Montello, a city in Marquette County, Wisconsin.
Today
82°F
Mostly Cloudy
Mostly cloudy, with a high near 82. Southwest wind around 10 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Montello
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Mostly Cloudy | 10 mph SW | 14% |
| Tonight | 59°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 5 mph W | 55% |
| Wednesday | 78°F | Chance Showers And Thunderstorms then Mostly Cloudy | 0 to 5 mph W | 38% |
| Wednesday Night | 52°F | Partly Cloudy | 0 to 5 mph SW | 2% |
| Thursday | 81°F | Sunny | 0 to 5 mph SW | 1% |
| Thursday Night | 56°F | Mostly Clear | 0 to 5 mph S | 1% |
| Friday | 83°F | Sunny | 0 to 10 mph SW | 2% |
| Friday Night | 61°F | Mostly Clear | 5 to 10 mph SW | 12% |
| Saturday | 85°F | Mostly Sunny | 5 to 10 mph SW | 12% |
| Saturday Night | 65°F | Chance Rain Showers | 5 to 10 mph SW | 35% |
| Sunday | 86°F | Chance Showers And Thunderstorms | 5 to 10 mph W | 35% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms | 0 to 10 mph SW | 50% |
| Monday | 83°F | Chance Rain Showers | 0 to 10 mph SW | 43% |
| Monday Night | 62°F | Chance Showers And Thunderstorms | 0 to 10 mph N | 39% |
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 Aug 4, 2026.