Thomaston, ME Weather & Growing Conditions
This Afternoon
60°F
Sunny
Sunny, with a high near 60. Southwest wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 60°F | Sunny | 5 to 10 mph SW | 0% |
| Tonight | 50°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Sunday | 60°F | Partly Sunny then Light Rain Likely | 5 to 10 mph S | 58% |
| Sunday Night | 50°F | Light Rain Likely | 5 to 10 mph E | 73% |
| Monday | 63°F | Sunny | 5 to 10 mph N | 4% |
| Monday Night | 46°F | Partly Cloudy | 5 to 10 mph N | 0% |
| Tuesday | 59°F | Mostly Sunny | 5 to 10 mph NE | 0% |
| Tuesday Night | 49°F | Partly Cloudy | 0 to 10 mph NE | 0% |
| Wednesday | 59°F | Sunny | 5 to 10 mph NE | 0% |
| Wednesday Night | 48°F | Mostly Clear | 0 to 5 mph NE | 0% |
| Thursday | 59°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 10 mph NE | 15% |
| Thursday Night | 49°F | Slight Chance Rain Showers | 0 to 10 mph NE | 22% |
| Friday | 60°F | Chance Rain Showers | 15 mph NE | 37% |
| Friday Night | 51°F | Chance Rain Showers | 15 to 25 mph NE | 42% |
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
6b
Explore more for Thomaston, ME: full frost dates · planting calendar · Maine frost dates
Climate data from the nearest NOAA station, Tenants Harbor, Me (3.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.