Winthrop, ME Weather & Growing Conditions
This Afternoon
65°F
Sunny
Sunny, with a high near 65. Southwest wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 65°F | Sunny | 0 mph | 0% |
| Tonight | 44°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Sunday | 60°F | Mostly Cloudy then Light Rain | 0 to 10 mph S | 76% |
| Sunday Night | 45°F | Light Rain Likely | 0 to 5 mph E | 69% |
| Monday | 65°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Monday Night | 41°F | Partly Cloudy | 5 to 10 mph N | 0% |
| Tuesday | 62°F | Mostly Sunny | 5 mph N | 0% |
| Tuesday Night | 42°F | Mostly Clear | 0 to 5 mph N | 0% |
| Wednesday | 64°F | Sunny | 5 mph NE | 0% |
| Wednesday Night | 41°F | Mostly Clear | 0 to 5 mph E | 0% |
| Thursday | 65°F | Mostly Sunny then Slight Chance Rain Showers | 5 mph NE | 15% |
| Thursday Night | 44°F | Slight Chance Rain Showers | 0 to 10 mph NE | 19% |
| Friday | 63°F | Chance Rain Showers | 10 mph NE | 34% |
| Friday Night | 47°F | Chance Rain Showers | 10 to 15 mph NE | 39% |
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 Sep 20, 2026.