Calais, ME Weather & Growing Conditions
Tonight
45°F
Partly Cloudy
Partly cloudy, with a low around 45. Northeast wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 45°F | Partly Cloudy | 1 mph NE | 0% |
| Sunday | 59°F | Mostly Cloudy | 1 to 7 mph SE | 5% |
| Sunday Night | 48°F | Chance Light Rain | 0 to 3 mph NE | 34% |
| Monday | 64°F | Patchy Fog then Mostly Sunny | 1 to 10 mph N | 11% |
| Monday Night | 42°F | Partly Cloudy | 3 to 8 mph N | 0% |
| Tuesday | 63°F | Mostly Sunny | 5 mph N | 0% |
| Tuesday Night | 42°F | Mostly Clear | 2 mph N | 0% |
| Wednesday | 62°F | Sunny | 3 mph NE | 0% |
| Wednesday Night | 41°F | Mostly Clear | 1 mph NE | 0% |
| Thursday | 65°F | Sunny | 2 mph NE | 1% |
| Thursday Night | 43°F | Mostly Cloudy then Slight Chance Rain Showers | 2 mph NE | 18% |
| Friday | 64°F | Chance Rain Showers | 2 to 7 mph NE | 28% |
| Friday Night | 46°F | Chance Rain Showers | 5 to 8 mph NE | 38% |
| Saturday | 63°F | Chance Rain Showers | 9 mph NE | 37% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Calais, ME
Last spring frost
May 5
First fall frost
Oct 13
Growing season
160 days
Hardiness zone
5b
Explore more for Calais, ME: full frost dates · planting calendar · Maine frost dates
Climate data from the nearest NOAA station, Robbinston, Me (9.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.