Next 7 departures
- SatOct 3
ClearNo significant weather expected. Temperatures 55–59°F along the way.
Along the way
Checkpoint · arrival Weather · temperature Boston7 AM EDT Sunny57°F Massachusetts–New Hampshire line7:45 AM EDT Sunny55°F Portsmouth8 AM EDT Sunny57°F Portland8:45 AM EDT Sunny57°F Augusta9:45 AM EDT Sunny56°F Bangor10:45 AM EDT Sunny56°F Bar Harbor11:45 AM EDT Sunny59°F - SunOct 4
ClearNo significant weather expected. Temperatures 47–57°F along the way.
Along the way
Checkpoint · arrival Weather · temperature Boston7 AM EDT Patchy fog52°F Massachusetts–New Hampshire line7:45 AM EDT Mostly sunny47°F Portsmouth8 AM EDT Mostly sunny49°F Portland8:45 AM EDT Mostly sunny50°F Augusta9:45 AM EDT Mostly sunny47°F Bangor10:45 AM EDT Mostly sunny55°F Bar Harbor11:45 AM EDT Mostly sunny57°F - MonOct 5
ClearNo significant weather expected. Temperatures 50–55°F along the way.
Along the way
Checkpoint · arrival Weather · temperature Boston7 AM EDT Slight chance of light rain showers53°F Massachusetts–New Hampshire line7:45 AM EDT Mostly cloudy50°F Portsmouth8 AM EDT Mostly cloudy52°F Portland8:45 AM EDT Mostly cloudy54°F Augusta9:45 AM EDT Slight chance of light rain showers54°F Bangor10:45 AM EDT Chance of light rain54°F Bar Harbor11:45 AM EDT Chance of light rain55°F - TueOct 6
CautionGusts to 32 mph near Bangor around 10:45 AM EDT.
Along the way
Checkpoint · arrival Weather · temperature Boston7 AM EDT Sunny45°F Massachusetts–New Hampshire line7:45 AM EDT Sunny42°F Portsmouth8 AM EDT Sunny43°F Portland8:45 AM EDT Sunny44°F Augusta9:45 AM EDT Sunny43°F Bangor10:45 AM EDT Mostly sunny47°F Bar Harbor11:45 AM EDT Sunny51°F - WedOct 7
ClearNo significant weather expected. Temperatures 40–53°F along the way.
Along the way
Checkpoint · arrival Weather · temperature Boston7 AM EDT Sunny43°F Massachusetts–New Hampshire line7:45 AM EDT Sunny40°F Portsmouth8 AM EDT Sunny42°F Portland8:45 AM EDT Sunny43°F Augusta9:45 AM EDT Sunny43°F Bangor10:45 AM EDT Sunny48°F Bar Harbor11:45 AM EDT Sunny53°F - ThuOct 8
ClearNo significant weather expected. Temperatures 45–58°F along the way.
Along the way
Checkpoint · arrival Weather · temperature Boston7 AM EDT Mostly sunny49°F Massachusetts–New Hampshire line7:45 AM EDT Mostly sunny45°F Portsmouth8 AM EDT Mostly sunny47°F Portland8:45 AM EDT Mostly sunny49°F Augusta9:45 AM EDT Mostly sunny48°F Bangor10:45 AM EDT Mostly sunny55°F Bar Harbor11:45 AM EDT Mostly sunny58°F - FriOct 9
ClearNo significant weather expected. Temperatures 48–59°F along the way.
Along the way
Checkpoint · arrival Weather · temperature Boston7 AM EDT Mostly sunny52°F Massachusetts–New Hampshire line7:45 AM EDT Mostly sunny48°F Portsmouth8 AM EDT Mostly sunny50°F Portland8:45 AM EDT Mostly sunny51°F Augusta9:45 AM EDT Mostly sunny51°F Bangor10:45 AM EDT Mostly sunny55°F Bar Harbor11:45 AM EDT Mostly sunny59°F
The worst conditions expected at any checkpoint, timed to when you would reach it driving without stops. Levels use Road Travel’s driving-risk scale.
The route, stop by stop
Checkpoints in order, with driving time from Boston (no stops) and elevation. The forecast above is timed to these.
- Boston, MAStart 28 ftelevation
- Massachusetts–New Hampshire lineState line · Mile 40 · 44 min 63 ftelevation
- Portsmouth, NHMile 56 · 1 h 27 ftelevation
- Portland, MEMile 106 · 1 h 47 min 77 ftelevation
- Augusta, MEMile 159 · 2 h 38 min 36 ftelevation
- Bangor, MEMile 233 · 3 h 46 min 19 ftelevation
- Bar Harbor, MEMile 281 · 4 h 52 min 56 ftelevation
Typical weather by month
Average daily highs and lows, and monthly rain, at Boston, Portland and Bar Harbor.
| Month | Boston 12 ft | Portland Portland Jetport station · 45 ft | Bar Harbor Acadia National Park station · 470 ft | |||
|---|---|---|---|---|---|---|
| High / low °F | Precip (in) | High / low °F | Precip (in) | High / low °F | Precip (in) | |
| Jan | 37° / 23° | 3.4 | 32° / 16° | 3.5 | 33° / 15° | 4.5 |
| Feb | 39° / 25° | 3.2 | 35° / 17° | 3.5 | 35° / 18° | 3.8 |
| Mar | 46° / 31° | 4.2 | 42° / 26° | 4.1 | 42° / 25° | 4.9 |
| Apr | 56° / 41° | 3.6 | 54° / 35° | 4.4 | 53° / 35° | 5.2 |
| May | 67° / 50° | 3.2 | 64° / 46° | 3.7 | 65° / 45° | 4.5 |
| Jun | 76° / 60° | 3.9 | 74° / 55° | 4.2 | 74° / 54° | 4.3 |
| Jul | 82° / 66° | 3.3 | 80° / 61° | 3.4 | 79° / 60° | 3.3 |
| Aug | 80° / 65° | 3.2 | 79° / 60° | 3.6 | 78° / 60° | 3.5 |
| Sep | 73° / 58° | 3.6 | 71° / 52° | 3.8 | 71° / 53° | 4.2 |
| Oct | 62° / 48° | 4.0 | 60° / 41° | 5.2 | 59° / 43° | 5.9 |
| Nov | 52° / 38° | 3.7 | 48° / 32° | 4.2 | 48° / 33° | 5.9 |
| Dec | 42° / 29° | 4.3 | 38° / 22° | 4.5 | 38° / 22° | 5.7 |
NOAA NCEI U.S. Climate Normals, 1991–2020: BOSTON LOGAN INTL AP (USW00014739, 12 ft); PORTLAND INTL JETPORT (USW00014764, 45 ft); ACADIA NP (USC00170100, 470 ft). Precipitation is the monthly total of rain and melted snow, in inches. “—” means the station does not publish that normal.
Road conditions
Closures and chain rules change by the hour, so we link to the official reports for Massachusetts, New Hampshire and Maine rather than repeat them.
- Massachusetts · MassDOTMass511 road conditions
- New Hampshire · NHDOTNew England 511 road conditions
Check the official National Weather Service forecast and each state's road report before you leave.
Get alerts timed to where you’ll be when you get there
Road Travel plans the drive from Boston to Bar Harbor with the forecast at every stretch for the hour you’ll reach it, then warns you about weather ahead while you drive.
Questions about this drive
How long is the drive from Boston to Bar Harbor?
281 miles, about 5 hours of driving without stops, by way of I-95 and I-295. Fuel, food and rest stops add to that.
What is the wettest month in Bar Harbor?
October. The nearest long-term NOAA station, Acadia National Park (470 ft), averages 5.9 inches of rain and melted snow that month (1991–2020 normals).
How cold is Bar Harbor in January?
The nearest long-term NOAA station, Acadia National Park (470 ft), averages a high of 33°F and a low of 15°F in January (1991–2020 normals).