Casco, ME Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Casco, a community in Cumberland County, Maine.
This Afternoon
66°F
Slight Chance Rain Showers
A slight chance of rain showers. Cloudy. High near 66, with temperatures falling to around 58 in the afternoon. East wind around 0 mph. Chance of precipitation is 20%.
7-day forecast for Casco
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Slight Chance Rain Showers | 0 mph | 19% |
| Tonight | 44°F | Chance Rain Showers then Cloudy | 0 mph | 29% |
| Wednesday | 75°F | Partly Sunny | 0 to 5 mph SW | 6% |
| Wednesday Night | 49°F | Partly Cloudy | 0 to 5 mph SW | 3% |
| Thursday | 70°F | Mostly Cloudy then Scattered Rain Showers | 5 to 10 mph SW | 25% |
| Thursday Night | 55°F | Mostly Cloudy | 0 to 5 mph SW | 11% |
| Friday | 67°F | Light Rain Likely | 0 to 5 mph S | 55% |
| Friday Night | 49°F | Light Rain | 5 mph NE | 84% |
| Saturday | 58°F | Light Rain | 5 to 10 mph N | 77% |
| Saturday Night | 40°F | Light Rain Likely | 5 mph NW | 56% |
| Sunday | 56°F | Chance Light Rain | 5 to 10 mph W | 39% |
| Sunday Night | 33°F | Mostly Cloudy | 0 to 5 mph W | 14% |
| Monday | 54°F | Partly Sunny then Slight Chance Light Rain | 5 to 10 mph NW | 21% |
| Monday Night | 30°F | Slight Chance Light Rain | 5 to 10 mph W | 19% |
Forecast source: National Weather Service (api.weather.gov) for Casco (44.002, -70.533). Updated through the day.
Growing snapshot for Casco
Last spring frost
Apr 30
First fall frost
Oct 20
Growing season
172 days
Hardiness zone
5b
More local growing data for Casco: nearby ZIP 04015 weather · frost dates · planting calendar · Maine frost dates
Nearby towns & communities
Bridgton
Brunswick
Cousins Island
Cumberland Center
Dunstan
Falmouth
Falmouth Foreside
Freeport
Gorham
Gray
Little Falls
Littlejohn Island
Naples
North Windham
Oak Hill
Portland
South Portland
South Windham
Standish
Steep Falls
Westbrook
Yarmouth
Climate data from the nearest NOAA station, Windham 2Nw, Me (7 mi from Casco). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.