Winthrop, ME Weather & Growing Conditions
Today
72°F
Mostly Sunny
Mostly sunny. High near 72, with temperatures falling to around 64 in the afternoon. Southwest wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Mostly Sunny | 0 to 5 mph SW | 4% |
| Tonight | 49°F | Partly Cloudy | 0 to 5 mph SW | 3% |
| Thursday | 70°F | Mostly Cloudy then Chance Light Rain | 5 to 10 mph S | 41% |
| Thursday Night | 56°F | Mostly Cloudy then Chance Light Rain | 0 to 10 mph SW | 29% |
| Friday | 68°F | Chance Light Rain | 0 mph | 41% |
| Friday Night | 50°F | Light Rain | 0 to 10 mph NE | 89% |
| Saturday | 58°F | Light Rain | 5 to 10 mph NE | 81% |
| Saturday Night | 44°F | Chance Light Rain | 5 to 10 mph N | 49% |
| Sunday | 53°F | Chance Light Rain | 5 to 10 mph NW | 43% |
| Sunday Night | 36°F | Slight Chance Light Rain then Partly Cloudy | 0 to 5 mph W | 15% |
| Monday | 51°F | Mostly Sunny then Slight Chance Light Rain | 5 to 10 mph W | 19% |
| Monday Night | 33°F | Slight Chance Light Rain then Partly Cloudy | 5 to 10 mph W | 17% |
| Tuesday | 52°F | Mostly Sunny | 5 to 10 mph SW | 13% |
| Tuesday Night | 32°F | Mostly Cloudy | 5 mph W | 11% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Winthrop, ME
Last spring frost
May 1
First fall frost
Oct 10
Growing season
162 days
Hardiness zone
5b
Explore more for Winthrop, ME: full frost dates · planting calendar · Maine frost dates
Climate data from the nearest NOAA station, Turner, Me (10.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.