Monson to Somerville is 70.7 miles and takes about 1 hour 37 minutes via Massachusetts Turnpike, with a fuel budget near $11 and enough daylight to finish in a day. This trip stays within Massachusetts, moving from the Northeast region to the Northeast region. The route is mostly highway, making it a straightforward drive for a single day. It’s a practical choice if you need to get between these two points efficiently without much fuss.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
35.4 miles from Monson, MA
A natural place for your longest stop of the day
, about 49m into the drive
.
Main Roads
Road
Distance
Duration
Massachusetts Turnpike
51.9 mi
1h 1m
Sturbridge Road
4 mi
5m
Brimfield Road
3 mi
4m
Palmer Road
2.3 mi
2m
Main Street
2.2 mi
4m
Wilbur Cross Highway
1.4 mi
2m
Monson Road
1.2 mi
2m
Prospect Street
0.9 mi
3m
Longest stretch:
Massachusetts Turnpike
— 51.9 mi, about 1h 1m
Turn-by-Turn Driving Directions
Step-by-step road directions between Monson, MA and Somerville, MA.
1
Start on Harrison Avenue
233 ft·14 sec·Harrison Avenue
2
Turn left onto MA 32
0.4 mi·55 sec·Main Street
3
Turn right onto Chestnut Street
0.2 mi·43 sec·Chestnut Street
4
Continue on Bethany Road
0.1 mi·23 sec·Bethany Road
5
Continue on Brimfield Road
2.0 mi·3 min·Brimfield Road
6
Continue on Monson Road
1.2 mi·2 min·Monson Road
7
Continue on Main Palmer Road
0.2 mi·21 sec·Main Palmer Road
8
Turn slight right onto US 20
2.3 mi·2 min·Palmer Road
9
Continue on US 20
0.3 mi·23 sec·Main Street
10
Continue on US 20
4.0 mi·5 min·Sturbridge Road
11
Continue on US 20
1.0 mi·1 min·Brimfield Road
12
Continue on US 20
1.6 mi·3 min·Main Street
13
Continue on US 20
0.6 mi·1 min·Charlton Road
14
Take the exit
0.2 mi·23 sec
15
Merge onto I 84
1.4 mi·2 min·Wilbur Cross Highway
16
Merge onto I 90
52 mi·1 hr 1 min·Massachusetts Turnpike
Use the straight lane.
17
Take the exit
0.5 mi·1 min
Exit 131Toward Allston-Brighton, Cambridge, Fenway ParkUse the slight left lane.
18
Keep slight right at fork
0.2 mi·23 sec
Toward Cambridge, Somerville, Fenway ParkUse the slight left / slight right lanes.
19
Turn slight right onto Cambridge Street
180 ft·6 sec·Cambridge Street
20
Continue on River Street
0.8 mi·2 min·River Street
Use the straight / left lanes.
21
Continue on Prospect Street
0.9 mi·3 min·Prospect Street
22
Turn slight left onto Webster Avenue
0.2 mi·38 sec·Webster Avenue
23
Continue on Bow Street
0.2 mi·39 sec·Bow Street
24
Turn slight right onto Summer Street
0.2 mi·39 sec·Summer Street
25
Turn right onto Prescott Street
0.2 mi·57 sec·Prescott Street
26
Turn left onto Highland Avenue
0.1 mi·30 sec·Highland Avenue
27
Turn right
163 ft·12 sec
28
Arrive at destination
Trip Plan
Given the relatively short 1 hour 37 minute duration, this trip offers a lot of flexibility for when you depart. Leaving in the morning could have you in Somerville before the peak afternoon commute. With only 70.7 miles, you likely won't need extensive stops, but it's always wise to factor in a quick break. Keep an eye on your fuel; the estimated cost is $11, so ensuring you have at least a quarter tank before starting is a good idea, especially since the longest stretch without exits is over 50 miles.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 35.4 miles from Monson, MA, or about 49m into the drive.
The longest continuous stretch on this route runs about 51.9 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 16 miles or 26m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 35.4 miles or 49m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 18m
Traffic, exits, and arrival timing usually matter more near Somerville, MA than in the middle of the route.
Before You Leave
+
Open the route before leaving Monson, MA so your first major turns are already loaded.
Day 1
Settle into the route from Monson, MA
This is one driving day of about 70.7 miles and 1h 37m.
Your first comfortable stop window is around 16 miles from Monson, MA.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on Massachusetts Turnpike for about 51.9 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 11
5 decision points cluster between mile 15.6 and 70.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
15.6 mi into trip|~25m in|I 90 / Massachusetts Turnpike
Merge onto I 90 / Massachusetts Turnpike
Merge point - match speed before joining. Lane positioning matters here
Use the straight lane.
8
67.5 mi into trip|~1h 27m in
Take the exit toward Allston-Brighton, Cambridge, Fenway Park
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left lane.
Exit 131
Toward Allston-Brighton, Cambridge, Fenway Park
8
68 mi into trip|~1h 28m in
Keep slight right at fork toward Cambridge, Somerville, Fenway Park
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left / slight right lanes.
Toward Cambridge, Somerville, Fenway Park
5
70.6 mi into trip|~1h 36m in|Highland Avenue
Turn left onto Highland Avenue
Navigation decision point
5
70.7 mi into trip|~1h 37m in
Turn right
Navigation decision point
Fuel & Cost
Regular Gas
$11.31 one way
$22.63 round trip
$4.07/gal25.4 MPG avg25 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.43
$12.34
$24.68
premium
$4.82
$13.42
$26.85
diesel
$5.61
$15.61
$31.22
Estimated Tolls: $3.12
Massachusetts Turnpike
(51.9 mi)$3.12
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Estimated Trip Cost (one way, 1 person)
Fuel
$11
Tolls
$3
Meals
$25–$50
Total
$39–$64
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 24.7 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $7 in charging
· 0 stops
· 68% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
21.2
0
$7.42
$3.39
Efficient EV
17.7
0
$6.19
$2.83
EV Truck/SUV
28.3
0
$9.90
$4.52
Gas CO2
25 kg
EV CO2
8 kg (68% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 20, 2026
Origin
Monson, MA
Late night
in Monson on Tuesday
Local time
5:16 AM
EDT
Current temp
60°F
Unavailable
Live forecast
Destination
Somerville, MA
Late night
in Somerville on Tuesday
Local time
5:16 AM
EDT
Current temp
62°F
Unavailable
Live forecast
63°F
Worcester, MA
35 mi in
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
2 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
1h 37m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Boston National Historical Park
National Historical Park
Discover how one city could be the Cradle of Liberty, site of the first major battle of American Revolution, and home to many who espoused that freedom can be extended to all.
3 mi from route
~6 min detour
Free
near mile 70.7
Park Closure: Dorchester Heights Temporary Public Access Restrictions
At Minute Man National Historical Park the opening battle of the Revolution is brought to life as visitors explore the battlefields and structures associated with April 19, 1775, and witness the Ameri...
From the sweet little farm at the foot of Penn’s Hill to the gentleman’s country estate at Peace field, Adams National Historical Park is the story of “heroes, statesmen, philosophers…and learned wome...
. . . where you can walk a Civil War-era fort, view historic lighthouses, explore tide pools, hike lush trails, camp under the stars, or relax while fishing, picnicking, or swimming—all within reach o...
10 mi from route
~24 min detour
Free
near mile 68.3
Originally established in 1938 as the first National Historic Site in the United States, Salem Maritime National Historical Park consists of nine acres of land and twelve historic structures along the...
14 mi from route
~36 min detour
Free
near mile 70.7
From the Sound to the summits: the New England Trail covers 235 miles from Long Island Sound across long ridges to scenic mountain summits in Connecticut and Massachusetts. The trail offers panoramic...
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
You'll spend about 73% of this 70.7-mile drive on highways, with the longest stretch covering 51.9 miles on the Massachusetts Turnpike. After this significant highway segment, you'll transition to surface roads like Sturbridge Road and Brimfield Road for the remainder of your trip. Expect a pattern of relatively steady cruising on the Turnpike, followed by more frequent turns and potentially denser traffic as you approach Somerville.
73% highway — fuel and pacing are the main things to plan.
28 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 51.9 mi on Massachusetts Turnpike.
How Hard Is This Drive?
6/10
This is a straightforward highway drive that stays mostly on Massachusetts Turnpike and Sturbridge Road. You will hit about 11 points where you need to pay attention to lane position or signs. The trickiest moment comes around 15.6 miles in near I 90 / Massachusetts Turnpike.
Driving Effort6/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 70.7 miles you will encounter 11 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 15.6 miles (I 90 / Massachusetts Turnpike): Merge point - match speed before joining. Lane positioning matters here; at 67.5 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 68 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Monson is a small town in Maine, with a population of 609 according to the 2020 census. It was incorporated in 1822, and named after Monson, Massachusetts. Monson is primarily known for its slate quarries and it being the last town before the 100 mile wilderness on the Appalachian Trail. Today it has become something of an artist's town featuring galleries and several restaurants while still catering to thru hikers of the AT.
Older Bostonians might still derisively call it "Slummerville", but today that tired old moniker couldn't be further from the truth. Packed with upwardly mobile professionals and longtime residents, Somerville is often voted an "All-America City" and the best-run city in Massachusetts. It would seem civically engaged folks can achieve uncommon results; and Somerville fosters an environment of cooperation like no other. Its 81,000 residents (2020) are quick to enjoy the fruits of their artistry, and you'll find top notch options for dinner, drinks, and dancing all in abundance within Somerville's borders. Lurking just to the south, big brothers Boston and Cambridge provide options and opportunities for many of Somerville's creative class residents.
Top landmarks
•Mystic Valley Parkway — Historic road in Massachusetts
Doable as a same-day drive at 1h 37m. Total distance: 70.7 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 37m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (73%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 51.9 miles on Massachusetts Turnpike. The full list of main roads is in the Roads section above.
Expect about $3.12 in tolls one way, starting with Massachusetts Turnpike. Most Northeast and Midwest toll agencies accept E-ZPass; in the West and Texas, transponders like TxTag or FasTrak apply. If you do not have a transponder, cashless tolling plates will mail a bill to the vehicle's registered address — usually with a surcharge, so a rental-car toll pass is often cheaper than paying by mail.
Yes — we found about 8 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Somerville, MA before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: at 15.6 miles (I 90 / Massachusetts Turnpike): Merge point - match speed before joining. Lane positioning matters here; at 67.5 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 68 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Boston National Historical Park, Minute Man National Historical Park and Adams National Historical Park (6 total within detour distance). See the National Parks section for detour distances and tips on detours.
Yes. A round trip is manageable in a single day if you plan a break at Somerville, MA before heading back.
