Calais, ME Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Calais, a city in Washington County, Maine.
Today
84°F
Sunny
Sunny, with a high near 84. West wind 10 to 14 mph, with gusts as high as 26 mph.
7-day forecast for Calais
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Sunny | 10 to 14 mph W | 0% |
| Tonight | 63°F | Clear | 2 to 7 mph W | 1% |
| Wednesday | 90°F | Sunny | 1 to 6 mph SW | 1% |
| Wednesday Night | 63°F | Partly Cloudy | 0 to 6 mph SW | 0% |
| Thursday | 87°F | Sunny | 0 to 3 mph SW | 0% |
| Thursday Night | 63°F | Mostly Clear | 0 to 3 mph SW | 6% |
| Friday | 84°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 3 mph S | 22% |
| Friday Night | 65°F | Slight Chance Showers And Thunderstorms | 2 mph SW | 24% |
| Saturday | 86°F | Slight Chance Showers And Thunderstorms | 2 mph W | 41% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms | 2 mph SW | 38% |
| Sunday | 87°F | Mostly Sunny | 0 to 5 mph W | 14% |
| Sunday Night | 64°F | Partly Cloudy | 3 mph SW | 13% |
| Monday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 7 mph SW | 26% |
| Monday Night | 62°F | Chance Showers And Thunderstorms | 5 mph W | 26% |
Forecast source: National Weather Service (api.weather.gov) for Calais (45.143, -67.218). Updated through the day.
Growing snapshot for Calais
Last spring frost
May 5
First fall frost
Oct 13
Growing season
160 days
Hardiness zone
5b
More local growing data for Calais: nearby ZIP 04619 weather · frost dates · planting calendar · Maine frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Robbinston, Me (6.2 mi from Calais). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.