Greenville, ME Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Greenville, a community in Piscataquis County, Maine.
Tonight
42°F
Clear
Clear, with a low around 42. Northwest wind 13 to 17 mph, with gusts as high as 30 mph.
7-day forecast for Greenville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 42°F | Clear | 13 to 17 mph NW | 0% |
| Saturday | 58°F | Sunny | 5 to 12 mph NW | 0% |
| Saturday Night | 42°F | Partly Cloudy | 0 to 5 mph NE | 0% |
| Sunday | 57°F | Mostly Cloudy then Chance Light Rain | 5 to 10 mph S | 32% |
| Sunday Night | 44°F | Chance Light Rain then Patchy Fog | 1 to 7 mph W | 27% |
| Monday | 58°F | Patchy Fog then Mostly Sunny | 5 to 9 mph NW | 3% |
| Monday Night | 40°F | Partly Cloudy | 5 to 8 mph N | 0% |
| Tuesday | 59°F | Mostly Sunny | 6 mph N | 0% |
| Tuesday Night | 40°F | Partly Cloudy | 3 mph NE | 0% |
| Wednesday | 61°F | Sunny | 3 mph E | 1% |
| Wednesday Night | 42°F | Mostly Clear | 2 mph NE | 1% |
| Thursday | 61°F | Mostly Sunny | 1 to 5 mph E | 7% |
| Thursday Night | 45°F | Slight Chance Rain Showers | 3 mph NE | 24% |
| Friday | 62°F | Slight Chance Rain Showers | 3 to 7 mph N | 24% |
Forecast source: National Weather Service (api.weather.gov) for Greenville (45.466, -69.578). Updated through the day.
Growing snapshot for Greenville
Last spring frost
May 7
First fall frost
Oct 9
Growing season
153 days
Hardiness zone
4b
More local growing data for Greenville: nearby ZIP 04442 weather · frost dates · planting calendar · Maine frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Greenville Maine Forestry Svc, Me (5 mi from Greenville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.