Marlborough in Fall
In fall (September, October and November), Marlborough sees average daytime highs around 62°F and overnight lows near 45°F, with 10.5 in of precipitation over about 26 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 78°F in early September to 46°F by late November. The sky is clear or mostly clear about 37% of the time across fall, and the air most often feels dry.
Fall is Marlborough's 2nd-best season to visit on our travel score. For the whole year in context, see Marlborough's year-round climate.
- Avg daytime high
- 62°F
- 2nd-warmest season
- Avg overnight low
- 45°F
- Precipitation
- 10.5 in
- 26 wet days
- Avg wind
- 7 mph
- Travel score
- 5.0
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Marlborough in Fall
Over the season highs ease from about 78°F in early September to 46°F by late November.
A typical fall day in Marlborough reaches about 62°F and drops to 45°F overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Marlborough
Once humidity and wind are folded in, fall brings about 0 days that feel above 90°F and 23 that feel at or below 32°F.
The story in fall is cold — wind chill drags the overnight "feels like" below the raw low.
Marlborough weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 36° / 21° | 3.3 | 9.4 | 5.9 | 9.3 | 0.0 |
| Feb | 38° / 22° | 3.0 | 8.4 | 5.2 | 10.3 | 0.0 |
| Mar | 46° / 29° | 4.2 | 10.6 | 4.7 | 11.6 | 1.2 |
| Apr | 58° / 40° | 3.6 | 10.9 | 1 | 13.1 | 4.0 |
| May | 67° / 49° | 3.0 | 10.4 | 0 | 14.4 | 6.1 |
| Jun | 77° / 59° | 3.5 | 10.8 | 0 | 15 | 6.5 |
| Jul | 83° / 65° | 3.1 | 10.3 | 0 | 14.8 | 5.8 |
| Aug | 81° / 63° | 3.5 | 9.2 | 0 | 13.7 | 6.6 |
| Sep | 73° / 56° | 3.4 | 7.7 | 0 | 12.3 | 7.1 |
| Oct | 62° / 45° | 3.8 | 9.3 | 0.2 | 10.8 | 5.4 |
| Nov | 50° / 35° | 3.4 | 8.9 | 0.9 | 9.6 | 2.4 |
| Dec | 40° / 27° | 4.1 | 10.5 | 4.9 | 9 | 0.2 |
Cloud cover in Fall
The sky is clear or mostly clear about 37% of the time across fall.
Chance of precipitation in Fall
Marlborough gets around 10.5 in of rain and snow over 26 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 7 mph across fall.
Sunrise & sunset in Fall
Daylight runs from about 13 hours in early September to 9 h 12 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 3.0 kWh/m².
Hazard calendar for Marlborough
In fall, Marlborough overlaps its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Marlborough sits in the Atlantic hurricane belt; the season peaks August–October.
Is fall a good time to visit Marlborough?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Marlborough for sightseeing.
What to pack for Marlborough in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Marlborough sees daytime highs around 62°F and nights near 45°F. Pack a warm layer. Worth having: light clothes and rain gear. About 26 days see rain.
Sea temperature near Marlborough in Fall
The nearest coast averages about 56°F across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 35 mi away) is warmest in August at about 66°F and coldest in February near 38°F.
The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 41 | 38 | 38 | 42 | 50 | 58 | 65 | 66 | 63 | 56 | 50 | 46 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Cool | Bracing | Bracing | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 41 | Bracing |
| Feb | 38 | Bracing |
| Mar | 38 | Bracing |
| Apr | 42 | Bracing |
| May | 50 | Bracing |
| Jun | 58 | Bracing |
| Jul | 65 | Cool |
| Aug | 66 | Cool |
| Sep | 63 | Cool |
| Oct | 56 | Bracing |
| Nov | 50 | Bracing |
| Dec | 46 | Bracing |
UV index in Marlborough in Fall
Clear-sky midday UV across fall averages around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Marlborough peaks around July 10 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 23 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 3 | 4 | 5 | 7 | 7 | 7 | 5 | 6 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | Very high | Moderate | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 3 | Moderate |
| Mar | 4 | Moderate |
| Apr | 5 | High |
| May | 7 | Very high |
| Jun | 7 | Very high |
| Jul | 7 | Very high |
| Aug | 5 | Moderate |
| Sep | 6 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Moderate |
| Dec | 1 | Low |
Air quality in Marlborough in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Marlborough is worst in July — around 16 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (November, 8 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 10 | 13 | 14 | 14 | 15 | 15 | 16 | 14 | 12 | 10 | 8 | 10 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 13 | Moderate |
| Mar | 14 | Moderate |
| Apr | 14 | Moderate |
| May | 15 | Moderate |
| Jun | 15 | Moderate |
| Jul | 16 | Moderate |
| Aug | 14 | Moderate |
| Sep | 12 | Good |
| Oct | 10 | Good |
| Nov | 8 | Good |
| Dec | 10 | Good |
Where is Marlborough?
Marlborough sits at 42.3°N, 71.6°W, 390 ft above sea level, in United States. The nearest listed city is Framingham Center, 6.8 mi away.
Topography around Marlborough
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Marlborough.
Within 2 miles, the terrain around Marlborough has only modest variations in elevation — a maximum elevation change of 381 ft around an average of 387 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 689 ft; within 50 miles, large variations in elevation — a maximum elevation change of 3,176 ft.
The land around Marlborough is covered by trees (68%) within 2 miles, trees (81%) within 10 miles, and trees (81%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Marlborough (42.3459°, -71.5523°, elevation 390 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.