Winthrop, ME Weather & Growing Conditions
Today
84°F
Sunny
Sunny, with a high near 84. West wind 10 to 15 mph, with gusts as high as 25 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Sunny | 10 to 15 mph W | 0% |
| Tonight | 60°F | Mostly Clear | 0 to 10 mph SW | 0% |
| Wednesday | 86°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Wednesday Night | 64°F | Partly Cloudy | 0 to 5 mph SW | 3% |
| Thursday | 89°F | Mostly Sunny | 0 to 5 mph SW | 7% |
| Thursday Night | 68°F | Partly Cloudy | 0 to 5 mph SW | 7% |
| Friday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 26% |
| Friday Night | 68°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 26% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 41% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 36% |
| Sunday | 89°F | Sunny | 0 to 5 mph W | 5% |
| Sunday Night | 67°F | Mostly Clear | 0 to 5 mph SW | 9% |
| Monday | 88°F | Mostly Sunny | 0 to 10 mph W | 14% |
| Monday Night | 64°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph W | 18% |
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 Aug 4, 2026.