Winthrop, ME Weather & Growing Conditions
This Afternoon
65°F
Sunny
Sunny, with a high near 65. Northwest wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 65°F | Sunny | 0 to 5 mph NW | 0% |
| Tonight | 43°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 60°F | Mostly Cloudy then Rain Likely | 0 to 10 mph S | 74% |
| Sunday Night | 44°F | Light Rain Likely | 0 to 5 mph E | 69% |
| Monday | 66°F | Patchy Fog then Mostly Sunny | 5 to 10 mph N | 0% |
| Monday Night | 41°F | Partly Cloudy | 5 to 10 mph N | 0% |
| Tuesday | 63°F | Mostly Sunny | 5 mph N | 0% |
| Tuesday Night | 42°F | Mostly Clear | 0 to 5 mph NE | 0% |
| Wednesday | 65°F | Sunny | 5 mph NE | 0% |
| Wednesday Night | 41°F | Mostly Clear | 0 mph | 0% |
| Thursday | 65°F | Mostly Sunny then Slight Chance Rain Showers | 0 to 5 mph NE | 15% |
| Thursday Night | 43°F | Slight Chance Rain Showers | 0 to 10 mph NE | 19% |
| Friday | 64°F | Chance Rain Showers | 10 mph NE | 34% |
| Friday Night | 46°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
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 (8.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.