Thomaston, ME Weather & Growing Conditions
Today
84°F
Sunny
Sunny, with a high near 84. West wind 10 to 15 mph, with gusts as high as 25 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Sunny | 10 to 15 mph W | 0% |
| Tonight | 61°F | Mostly Clear | 5 to 10 mph SW | 0% |
| Wednesday | 83°F | Mostly Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 63°F | Partly Cloudy | 0 to 10 mph SW | 4% |
| Thursday | 84°F | Sunny | 0 to 5 mph SW | 4% |
| Thursday Night | 66°F | Partly Cloudy | 0 to 5 mph SW | 5% |
| Friday | 87°F | Mostly Sunny | 0 to 10 mph SW | 11% |
| Friday Night | 68°F | Slight Chance Rain Showers | 0 to 5 mph SW | 21% |
| Saturday | 83°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 23% |
| Saturday Night | 66°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph W | 21% |
| Sunday | 83°F | Mostly Sunny | 0 to 10 mph SW | 5% |
| Sunday Night | 66°F | Partly Cloudy | 0 to 5 mph SW | 5% |
| Monday | 84°F | Mostly Sunny | 0 to 10 mph SW | 10% |
| Monday Night | 66°F | Slight Chance Rain Showers | 0 to 10 mph W | 19% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Thomaston, ME
Last spring frost
Apr 27
First fall frost
Oct 25
Growing season
178 days
Hardiness zone
6a
Explore more for Thomaston, ME: full frost dates · planting calendar · Maine frost dates
Climate data from the nearest NOAA station, Tenants Harbor, Me (4.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.