Thomaston, ME Weather & Growing Conditions
This Afternoon
63°F
Sunny
Sunny, with a high near 63. South wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Sunny | 0 to 5 mph S | 0% |
| Tonight | 45°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Sunday | 62°F | Mostly Cloudy then Rain Showers Likely | 0 to 10 mph S | 59% |
| Sunday Night | 46°F | Light Rain Likely then Chance Rain Showers | 0 to 5 mph E | 65% |
| Monday | 65°F | Mostly Sunny | 5 to 10 mph N | 8% |
| Monday Night | 45°F | Partly Cloudy | 5 mph N | 0% |
| Tuesday | 64°F | Mostly Sunny | 5 to 10 mph NE | 0% |
| Tuesday Night | 47°F | Partly Cloudy | 0 to 10 mph NE | 0% |
| Wednesday | 58°F | Mostly Sunny | 5 to 15 mph NE | 0% |
| Wednesday Night | 46°F | Partly Cloudy | 0 to 5 mph E | 2% |
| Thursday | 58°F | Slight Chance Rain Showers | 5 to 10 mph NE | 22% |
| Thursday Night | 47°F | Chance Rain Showers | 5 to 15 mph NE | 33% |
| Friday | 59°F | Chance Rain Showers | 15 to 20 mph NE | 33% |
| Friday Night | 48°F | Chance Rain Showers | 15 to 25 mph NE | 31% |
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 (2.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.