Westford weather in June

In June, Westford sees average daytime highs of 77°F and overnight lows near 58°F, with 3.5 in of rain across 10.7 wet days and about 15.1 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 73°F in the first days to 81°F by the end. The sky is clear or mostly clear about 24% of the time in June, and the air most often feels dry.

Daylight stretches from about 14 h 54 min at the start of June to 15 h 06 min by month's end. Set against the rest of the year, June is Westford's 10th-clearest and 9th-windiest month. For the whole year in context, see Westford's year-round climate.

Daytime high
77°
3rd warmest
Overnight low
58°
10th coldest
Rainfall
3.5 in
10.7 wet days
Daylight
15 h 06 min
4:13 AM – 7:19 PM
Cloud cover
65%
10th clearest
Wind
6 mph
9th windiest
Solar energy
5.84 kWh/m²
Travel score
6.5
out of 10

Westford is town in Middlesex County, Massachusetts, United States.

Founded
1635

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 73°F in the first days to 81°F by the end.

A typical June day in Westford reaches about 77°F in the afternoon and slips back to 58°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 66°F and 88°F. Set against its neighbours, June runs about 10°F warmer than May and about 6°F cooler than July.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
17354
27354
37355
47455
57455
67455
77456
87556
97556
107557
117657
127657
137658
147758
157758
167759
177859
187859
197860
207960
217960
228061
238061
248061
258062
268162
278162
288162
298262
308263

How June really feels in Westford

Once humidity and wind are folded in, June averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

June sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Westford weather by month

How June compares with the rest of the year at a glance. June is the 3rd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan35° / 20°3.29.66.29.20.0
Feb37° / 22°3.08.55.710.30.0
Mar45° / 29°4.111.15.111.61.1
Apr57° / 39°3.610.51.213.14.0
May67° / 49°3.110.5014.46.0
Jun77° / 58°3.510.7015.16.5
Jul83° / 64°3.210.3014.85.8
Aug81° / 62°3.49.6013.76.5
Sep73° / 55°3.48012.37.0
Oct61° / 44°3.79.30.210.85.3
Nov50° / 34°3.39.11.19.62.3
Dec40° / 26°4.110.358.90.1

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 17% of June, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13961
24060
33961
43961
53961
63961
73961
83862
93961
103961
113961
124060
134060
144159
154159
164159
174159
184258
194258
204357
214357
224357
234357
244357
254456
264456
274555
284555
294555
304555

Chance of precipitation in June

Any precipitation

Westford gets around 3.5 in of rain over 10.7 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
132
232
333
433
533
634
734
834
934
1034
1134
1234
1334
1435
1535
1635
1735
1835
1936
2036
2136
2236
2336
2436
2536
2636
2736
2835
2935
3035

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

Most of June feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, June lands in the dry band about 48% of days. Sticky, muggy-or-worse air turns up on roughly 12% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
168171230
265181340
365181340
465181340
563191350
663191350
762191351
860201451
959201461
1058211461
1156211571
1255221571
1353221681
1452231681
1549241791
16472417101
17462418111
18442419121
19432419121
20412420132
21392421142
22372421152
23362422152
24342423162
25332424173
26322424173
27312425173
28302425184
29292426184
30282426184

Wind in June

Winds average 6 mph in June.

Across June, daily wind ranges from about 6 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 14 h 54 min at the start of June to 15 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over June. Sunrise moves from 4:17 AM to 4:16 AM, and sunset from 7:10 PM to 7:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.94:177:10
214.94:167:11
314.94:167:11
414.94:157:12
515.04:157:13
615.04:157:14
715.04:147:14
815.04:147:15
915.04:147:16
1015.04:137:16
1115.14:137:17
1215.14:137:17
1315.14:137:18
1415.14:137:18
1515.14:137:19
1615.14:137:19
1715.14:137:20
1815.14:137:20
1915.14:137:20
2015.14:137:21
2115.14:137:21
2215.14:137:21
2315.14:147:21
2415.14:147:22
2515.14:147:22
2615.14:147:22
2715.14:157:22
2815.14:157:22
2915.14:157:22
3015.14:167:22

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.84 kWh/m².

For context, solar energy here swings from a low near 1.59 kWh/m² to a high of 5.88 kWh/m² in July across the year — June's 5.84 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
206.0Bright
216.0Bright
226.0Bright
236.0Intense
246.0Intense
256.0Intense
266.0Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
Planning a trip in June

Hazard calendar for Westford

In seasonPeak

In June, Westford sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.

Westford sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is June a good time to visit Westford?

Our two travel scores rate June for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.5
Sightseeing
2nd-best month of the year
5.9
Beach & pool
3rd-best month of the year

June is a reasonable time to visit Westford for sightseeing.

What to pack for Westford in June

From June's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In June, Westford sees daytime highs around 77°F and nights near 58°F. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Westford in June

The nearest coast averages about 58°F in June — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 32 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.

40°50°60°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°F)Comfort
Jan41Bracing
Feb38Bracing
Mar38Bracing
Apr42Bracing
May50Bracing
Jun58Bracing
Jul65Cool
Aug66Cool
Sep63Cool
Oct56Bracing
Nov50Bracing
Dec46Bracing

UV index in Westford in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Westford 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 10UV 7Dec 23UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar4Moderate
Apr5High
May7Very high
Jun7Very high
Jul7Very high
Aug5Moderate
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Westford in June

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where June falls, not just the annual average.

Air quality in Westford is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (November, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1715 µg/m³Nov 188 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb13Moderate
Mar13Moderate
Apr13Moderate
May14Moderate
Jun13Moderate
Jul16Moderate
Aug14Moderate
Sep11Good
Oct9Good
Nov8Good
Dec9Good
Location & terrain

Where is Westford?

Westford sits at 42.6°N, 71.4°W, 397 ft above sea level, in United States. The nearest listed city is Chelmsford, 3.7 mi away.

Topography around Westford

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Westford.

Within 2 miles, the terrain around Westford has only modest variations in elevation — a maximum elevation change of 348 ft around an average of 266 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 607 ft; within 50 miles, large variations in elevation — a maximum elevation change of 3,176 ft.

The land around Westford is covered by trees (84%) within 2 miles, trees (80%) within 10 miles, and trees (77%) within 50 miles.

2 miles
348 ft
10 miles
607 ft
50 miles
3,176 ft
treesgrasslandcroplandartificial surfaceswaterwetland
June weather nearby: Chelmsford 3.7 mi · Acton 6.2 mi · Lowell 7.5 mi · Billerica 8.7 mi · Dracut 9.3 mi · Concord 9.3 mi · Tewksbury 11 mi · Nashua 13 mi

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
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

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 Westford (42.5793°, -71.4378°, elevation 397 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).