Cornish, ME Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cornish, a community in York County, Maine.
Overnight
42°F
Mostly Clear
Mostly clear, with a low around 42. North wind 0 to 5 mph.
7-day forecast for Cornish
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 42°F | Mostly Clear | 0 to 5 mph N | 0% |
| Saturday | 67°F | Sunny | 0 to 10 mph NW | 0% |
| Saturday Night | 43°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 61°F | Rain Showers Likely | 0 to 5 mph S | 69% |
| Sunday Night | 45°F | Rain Showers Likely | 0 to 5 mph E | 64% |
| Monday | 67°F | Mostly Sunny | 5 to 10 mph N | 2% |
| Monday Night | 43°F | Partly Cloudy | 5 mph N | 1% |
| Tuesday | 63°F | Partly Sunny | 5 mph NE | 1% |
| Tuesday Night | 42°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Wednesday | 64°F | Mostly Sunny | 5 to 10 mph NE | 1% |
| Wednesday Night | 41°F | Partly Cloudy | 0 to 5 mph NE | 8% |
| Thursday | 63°F | Slight Chance Rain Showers | 5 mph NE | 24% |
| Thursday Night | 44°F | Slight Chance Rain Showers | 0 to 10 mph NE | 24% |
| Friday | 65°F | Chance Rain Showers | 5 to 10 mph N | 27% |
Forecast source: National Weather Service (api.weather.gov) for Cornish (43.800, -70.795). Updated through the day.
Growing snapshot for Cornish
Last spring frost
May 12
First fall frost
Oct 1
Growing season
140 days
Hardiness zone
5a
More local growing data for Cornish: nearby ZIP 04020 weather · frost dates · planting calendar · Maine frost dates
Nearby towns & communities
Alfred
Biddeford
Cape Neddick
Kennebunk
Kennebunkport
Kittery
Lake Arrowhead
North Berwick
Old Orchard Beach
Saco
Sanford
South Berwick
South Eliot
West Kennebunk
York Harbor
Climate data from the nearest NOAA station, East Hiram, Me (8.2 mi from Cornish). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.