Winterport, ME Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Winterport, a community in Waldo County, Maine.
Overnight
43°F
Mostly Clear
Mostly clear, with a low around 43. Northwest wind 5 to 10 mph.
7-day forecast for Winterport
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Mostly Clear | 5 to 10 mph NW | 0% |
| Saturday | 64°F | Sunny | 5 to 10 mph NW | 0% |
| Saturday Night | 43°F | Partly Cloudy | 0 to 5 mph E | 0% |
| Sunday | 62°F | Mostly Cloudy then Chance Rain Showers | 0 to 15 mph S | 27% |
| Sunday Night | 44°F | Chance Rain Showers | 0 to 10 mph SW | 35% |
| Monday | 65°F | Sunny | 5 to 10 mph N | 8% |
| Monday Night | 42°F | Partly Cloudy | 5 to 10 mph N | 0% |
| Tuesday | 62°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Tuesday Night | 41°F | Partly Cloudy | 5 mph NE | 1% |
| Wednesday | 64°F | Sunny | 5 mph NE | 0% |
| Wednesday Night | 41°F | Partly Cloudy | 0 to 5 mph E | 3% |
| Thursday | 65°F | Mostly Sunny | 0 to 5 mph NE | 12% |
| Thursday Night | 43°F | Chance Rain Showers | 5 mph NE | 26% |
| Friday | 66°F | Chance Rain Showers | 5 to 10 mph N | 28% |
Forecast source: National Weather Service (api.weather.gov) for Winterport (44.648, -68.861). Updated through the day.
Growing snapshot for Winterport
Last spring frost
May 4
First fall frost
Oct 4
Growing season
152 days
Hardiness zone
5a
More local growing data for Winterport: nearby ZIP 04496 weather · frost dates · planting calendar · Maine frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Bangor Intl Ap, Me (11.1 mi from Winterport). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.