Bath, ME Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bath, a city in Sagadahoc County, Maine.
Tonight
45°F
Mostly Clear
Mostly clear, with a low around 45. Northwest wind 0 to 5 mph.
7-day forecast for Bath
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 45°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Saturday | 65°F | Sunny | 0 to 10 mph NW | 0% |
| Saturday Night | 45°F | Partly Cloudy | 0 to 10 mph SW | 0% |
| Sunday | 63°F | Chance Rain Showers | 0 to 10 mph S | 36% |
| Sunday Night | 47°F | Chance Rain Showers | 0 to 5 mph W | 53% |
| Monday | 67°F | Mostly Sunny | 5 to 10 mph N | 7% |
| Monday Night | 46°F | Partly Cloudy | 5 mph N | 0% |
| Tuesday | 62°F | Partly Sunny | 5 to 10 mph NE | 1% |
| Tuesday Night | 44°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Wednesday | 62°F | Mostly Sunny | 5 to 10 mph NE | 1% |
| Wednesday Night | 45°F | Partly Cloudy | 0 to 5 mph NE | 5% |
| Thursday | 62°F | Partly Sunny then Slight Chance Rain Showers | 5 to 10 mph NE | 23% |
| Thursday Night | 47°F | Chance Rain Showers | 0 to 5 mph NE | 25% |
| Friday | 64°F | Chance Rain Showers | 5 to 10 mph N | 30% |
Forecast source: National Weather Service (api.weather.gov) for Bath (43.933, -69.847). Updated through the day.
Growing snapshot for Bath
Last spring frost
May 10
First fall frost
Oct 6
Growing season
149 days
Hardiness zone
6a
More local growing data for Bath: nearby ZIP 04530 weather · frost dates · planting calendar · Maine frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Bath, Me (3.4 mi from Bath). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.