Winthrop, ME Weather & Growing Conditions
Today
65°F
Sunny
Sunny, with a high near 65. Northwest wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 65°F | Sunny | 0 to 5 mph NW | 0% |
| Tonight | 43°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Sunday | 61°F | Mostly Cloudy then Light Rain | 0 to 10 mph S | 75% |
| Sunday Night | 43°F | Light Rain Likely then Rain Showers Likely | 0 to 5 mph NE | 70% |
| Monday | 64°F | Mostly Sunny | 5 to 10 mph N | 3% |
| Monday Night | 42°F | Partly Cloudy | 5 to 10 mph N | 0% |
| Tuesday | 63°F | Mostly Sunny | 5 mph NE | 0% |
| Tuesday Night | 41°F | Partly Cloudy | 0 to 5 mph NE | 0% |
| Wednesday | 64°F | Mostly Sunny | 5 mph NE | 0% |
| Wednesday Night | 41°F | Partly Cloudy | 0 to 5 mph E | 2% |
| Thursday | 63°F | Slight Chance Rain Showers | 0 to 5 mph NE | 20% |
| Thursday Night | 43°F | Chance Rain Showers | 0 to 10 mph NE | 30% |
| Friday | 64°F | Chance Rain Showers | 10 mph N | 30% |
| Friday Night | 44°F | Chance Rain Showers | 10 to 15 mph NE | 30% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Winthrop, ME
Last spring frost
Apr 27
First fall frost
Oct 16
Growing season
172 days
Hardiness zone
5b
Explore more for Winthrop, ME: full frost dates · planting calendar · Maine frost dates
Climate data from the nearest NOAA station, Augusta State Ap, Me (8.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.