Montello, WI Weather & Growing Conditions
Tonight
56°F
Light Rain
Rain. Cloudy, with a low around 56. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Light Rain | 5 to 10 mph S | 79% |
| Wednesday | 59°F | Chance Light Rain | 10 to 15 mph S | 27% |
| Wednesday Night | 47°F | Light Rain Likely | 10 to 15 mph SW | 55% |
| Thursday | 52°F | Chance Light Rain | 10 mph W | 43% |
| Thursday Night | 36°F | Chance Light Rain then Cloudy | 10 mph N | 25% |
| Friday | 48°F | Slight Chance Light Rain then Partly Sunny | 5 to 10 mph N | 16% |
| Friday Night | 29°F | Partly Cloudy | 0 mph | 2% |
| Saturday | 53°F | Mostly Sunny | 0 to 5 mph W | 0% |
| Saturday Night | 32°F | Partly Cloudy | 0 to 5 mph W | 9% |
| Sunday | 58°F | Slight Chance Light Rain | 5 to 10 mph W | 17% |
| Sunday Night | 33°F | Mostly Clear | 0 to 5 mph W | 3% |
| Monday | 60°F | Mostly Sunny | 5 to 10 mph SW | 1% |
| Monday Night | 37°F | Partly Cloudy | 5 mph W | 0% |
| Tuesday | 59°F | Sunny | 5 to 10 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Montello, WI
Last spring frost
May 3
First fall frost
Oct 5
Growing season
153 days
Hardiness zone
5a
Explore more for Montello, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Montello, Wi (1.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.