Mellen, WI Weather & Growing Conditions
Today
60°F
Light Rain Likely
Rain likely and patchy fog. Cloudy. High near 60, with temperatures falling to around 55 in the afternoon. South wind around 5 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 60°F | Light Rain Likely | 5 mph S | 70% |
| Tonight | 32°F | Light Rain | 5 to 15 mph NW | 80% |
| Thursday | 43°F | Light Rain Likely | 10 to 15 mph N | 72% |
| Thursday Night | 24°F | Chance Light Snow | 5 to 10 mph N | 35% |
| Friday | 41°F | Partly Sunny | 0 to 5 mph N | 0% |
| Friday Night | 20°F | Mostly Clear | 0 mph | 0% |
| Saturday | 45°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Saturday Night | 27°F | Partly Cloudy | 5 mph SW | 2% |
| Sunday | 50°F | Sunny | 5 to 10 mph W | 4% |
| Sunday Night | 28°F | Partly Cloudy | 0 to 5 mph SW | 1% |
| Monday | 57°F | Mostly Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 31°F | Partly Cloudy | 5 mph W | 1% |
| Tuesday | 51°F | Mostly Sunny | 5 to 10 mph W | 2% |
| Tuesday Night | 27°F | Partly Cloudy | 0 to 5 mph W | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mellen, WI
Last spring frost
May 26
First fall frost
Sep 27
Growing season
125 days
Hardiness zone
4a
Explore more for Mellen, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Mellen 4 Ne, Wi (10.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.