Winterport, ME Weather & Growing Conditions
Today
89°F
Mostly Sunny
Mostly sunny, with a high near 89. South wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Mostly Sunny | 5 to 10 mph S | 0% |
| Tonight | 64°F | Partly Cloudy | 0 to 5 mph SW | 0% |
| Thursday | 90°F | Sunny | 0 to 5 mph SW | 7% |
| Thursday Night | 67°F | Mostly Clear | 0 to 5 mph S | 5% |
| Friday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 24% |
| Friday Night | 67°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 5 mph SW | 49% |
| Saturday | 84°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 67% |
| Saturday Night | 66°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 62% |
| Sunday | 87°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 10 mph W | 27% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 mph W | 25% |
| Monday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph W | 22% |
| Monday Night | 62°F | Chance Showers And Thunderstorms | 5 to 10 mph W | 25% |
| Tuesday | 82°F | Slight Chance Rain Showers | 5 to 10 mph W | 24% |
| Tuesday Night | 59°F | Slight Chance Rain Showers then Partly Cloudy | 5 mph W | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Winterport, ME
Last spring frost
May 4
First fall frost
Oct 4
Growing season
152 days
Hardiness zone
5a
Explore more for Winterport, ME: full frost dates · planting calendar · Maine frost dates
Climate data from the nearest NOAA station, Bangor Intl Ap, Me (11.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 5, 2026.