Chelsea, WI Weather & Growing Conditions
Overnight
49°F
Rain Showers Likely
Rain showers likely. Cloudy, with a low around 49. East wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Rain Showers Likely | 10 mph E | 60% |
| Saturday | 60°F | Chance Rain Showers | 10 mph E | 51% |
| Saturday Night | 48°F | Chance Rain Showers then Cloudy | 8 mph NE | 29% |
| Sunday | 66°F | Partly Sunny | 6 to 9 mph NE | 1% |
| Sunday Night | 40°F | Mostly Cloudy | 6 mph NE | 0% |
| Monday | 62°F | Mostly Cloudy | 6 mph E | 1% |
| Monday Night | 38°F | Mostly Cloudy | 3 mph E | 1% |
| Tuesday | 62°F | Mostly Sunny | 6 mph E | 2% |
| Tuesday Night | 39°F | Partly Cloudy | 2 mph E | 2% |
| Wednesday | 65°F | Mostly Sunny | 3 mph E | 2% |
| Wednesday Night | 43°F | Partly Cloudy | 2 mph E | 2% |
| Thursday | 68°F | Mostly Sunny | 2 mph S | 9% |
| Thursday Night | 45°F | Partly Cloudy | 1 mph W | 9% |
| Friday | 70°F | Mostly Sunny | 2 mph W | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Chelsea, WI
Last spring frost
May 11
First fall frost
Oct 1
Growing season
141 days
Hardiness zone
4a
Explore more for Chelsea, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Medford, Wi (13.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.