Winterport, ME Weather & Growing Conditions
Overnight
48°F
Slight Chance Light Rain
A slight chance of rain before 4am. Cloudy, with a low around 48. South wind around 0 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Slight Chance Light Rain | 0 mph | 20% |
| Wednesday | 70°F | Partly Sunny | 0 to 5 mph SW | 9% |
| Wednesday Night | 49°F | Partly Cloudy | 0 to 5 mph S | 4% |
| Thursday | 68°F | Partly Sunny then Slight Chance Light Rain | 5 to 15 mph S | 23% |
| Thursday Night | 56°F | Chance Light Rain | 5 to 10 mph SW | 31% |
| Friday | 67°F | Chance Light Rain | 0 to 5 mph S | 42% |
| Friday Night | 50°F | Light Rain | 0 to 10 mph E | 93% |
| Saturday | 58°F | Light Rain | 10 mph E | 87% |
| Saturday Night | 44°F | Light Rain Likely | 5 to 10 mph NE | 60% |
| Sunday | 53°F | Chance Light Rain | 5 to 10 mph NW | 54% |
| Sunday Night | 37°F | Slight Chance Light Rain then Partly Cloudy | 5 mph W | 18% |
| Monday | 51°F | Mostly Sunny then Slight Chance Light Rain | 5 to 15 mph W | 20% |
| Monday Night | 34°F | Slight Chance Light Rain | 5 to 10 mph W | 19% |
| Tuesday | 51°F | Mostly Sunny | 10 mph W | 14% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Winterport, ME
Last spring frost
May 7
First fall frost
Oct 5
Growing season
151 days
Hardiness zone
5a
Explore more for Winterport, ME: full frost dates · planting calendar · Maine frost dates
Climate data from the nearest NOAA station, Belfast, Me (14.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.