Weather in Dartmouth

14-day forecast · updated today, Wednesday, October 28, at 11:47 pm (GMT)

Now · overcast 50 °F

Feels like: 48 °F
Low / high: 49 / 59 °F
Rain: 24%
Wind: 4 mph SW

→ 30.35 inHg · steady

Today in Dartmouth: overcast, 49 °F to 59 °F, with a 24% chance of rain and a light breeze from the southwest (4 mph). Tomorrow, overcast, 48 °F to 58 °F and a 0% chance of rain. The warmest day of the week is Friday 30, at 59 °F. No significant rain expected over the next 7 days.

Temperatures for the next 14 days

59° 49°
Today
58° 48°
Thu 29
59° 55°
Fri 30
57° 52°
Sat 31
53° 48°
Sun 1
53° 47°
Mon 2
54° 46°
Tue 3
55° 51°
Wed 4
56° 52°
Thu 5
55° 52°
Fri 6
56° 52°
Sat 7
58° 56°
Sun 8
59° 56°
Mon 9
59° 56°
Tue 10

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 28	Overcast	49 / 59 °F	24%	12 mph WSW	5.6 ft	7:18 am · 7:39 pm	AROME
Thu 29	Overcast	48 / 58 °F	0%	12 mph SSE	3.3 ft	7:58 am · 8:21 pm	AROME
Fri 30	Overcast	55 / 59 °F	0%	12 mph ESE	3.5 ft	8:38 am · 9:05 pm	AROME + ICON-EU
Sat 31	Overcast	52 / 57 °F	2%	13 mph ENE	3.6 ft	9:22 am · 9:55 pm	ICON-EU
Sun 1	Overcast	48 / 53 °F	1%	9 mph NNE	2.8 ft	10:14 am · 10:57 pm	ICON-EU
Mon 2	Overcast	47 / 53 °F	6%	15 mph NE	4.5 ft	11:21 am	ICON-EU + ECMWF
Tue 3	Overcast	46 / 54 °F	18%	15 mph NE	5.1 ft	12:17 am · 12:44 pm	ECMWF
Wed 4	Light drizzle	51 / 55 °F	20% · 0.02 in	18 mph ENE	7.3 ft	1:43 am · 2:06 pm	ECMWF
Thu 5	Partly cloudy	52 / 56 °F	24%	20 mph E	7.4 ft	2:55 am · 3:12 pm	ECMWF
Fri 6	Overcast	52 / 55 °F	19%	20 mph E	4.5 ft	3:50 am · 4:05 pm	ECMWF
Sat 7	Light drizzle	52 / 56 °F	20% · 0.09 in	17 mph ESE	6.7 ft	4:37 am · 4:51 pm	ECMWF
Sun 8	Drizzle	56 / 58 °F	20% · 0.39 in	8 mph SSE	3.0 ft	5:18 am · 5:33 pm	ECMWF
Mon 9	Drizzle	56 / 59 °F	35% · 0.27 in	8 mph SSE	3.0 ft	5:57 am · 6:11 pm	ECMWF
Tue 10	Drizzle	56 / 59 °F	35% · 0.37 in	11 mph SW	3.3 ft	6:33 am · 6:47 pm	ECMWF

Each hour comes from the best model for this spot: AROME until Friday 30 10:00 pm; then ICON-EU until Monday 2 7:00 pm; then ECMWF until Thursday 12 3:00 pm; then GFS.

Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.

Today, every 3 hours

Time	12:00 am	3:00 am	6:00 am	9:00 am	12:00 pm	3:00 pm	6:00 pm	9:00 pm
Sky	Mainly clear	Mainly clear	Partly cloudy	Partly cloudy	Overcast	Overcast	Overcast	Overcast
Temperature	49°	52°	53°	56°	59°	58°	54°	52°
Chance of rain	0%	0%	0%	4%	4%	24%	0%	0%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in
Wind (mph)	8 WSW	10 WSW	9 WSW	9 WSW	9 WSW	9 WSW	7 WSW	4 WSW
Humidity	80%	80%	81%	83%	78%	79%	90%	91%
UV	0	0	0	1	1	0	0	0
Model	AROME	AROME	AROME	AROME	AROME	AROME	AROME	AROME

Do the models agree?

High confidence

The models agree for the next few days: the forecast is fairly solid.

What 7 forecast models say for the next few days. The closer they are, the more reliable the forecast.

HighRainWind

Do the models agree? · High
High (°F)	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	59°	58°	58°	59°	53°	54°	54°
AIFS	58°	57°	57°	56°	54°	53°	53°
GFS	59°	58°	59°	60°	58°	54°	54°
ICON	58°	58°	59°	57°	54°	54°	54°
ARPEGE	58°	58°	60°	55°	—	—	—
AROME	59°	58°	59°	—	—	—	—
ICON-EU	58°	58°	59°	57°	53°	—	—
Confidence	high	high	high	high	high	high	high

Do the models agree? · Rain
Rain	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	0.01 in	0	0	0	0	0.01 in	0
AIFS	0	0	0	0	0	0	0
GFS	0	0	0	0	0	0	0
ICON	0	0.00 in	0	0	0	0	0
ARPEGE	0	0	0	0.02 in	—	—	—
AROME	0	0	0	—	—	—	—
ICON-EU	0	0.00 in	0	0	0	—	—
Confidence	high	high	high	high	high	high	high

Do the models agree? · Wind
Wind (mph)	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	1528	1123	1223	1326	1528	1635	1534
AIFS	17	14	15	13	17	19	21
GFS	1528	1114	1217	1313	1826	2027	1825
ICON	1323	1017	1018	1221	916	1525	1729
ARPEGE	1726	1320	1421	1320	—	—	—
AROME	1223	1223	1223	—	—	—	—
ICON-EU	1424	1017	1118	1323	916	—	—
Confidence	high	high	high	high	medium	high	high

Chance of rain from the ensemble models

Model	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF (51 scenarios)	24%	0%	0%	2%	1%	6%	18%
GFS (GEFS, 31 scenarios)	0%	0%	0%	0%	0%	0%	3%

Each model's day runs midnight to midnight local time; models that reach fewer days are left blank. Rain: daily total. Wind: the day's highest average wind and, in small type, the strongest gust. Highlighted: values that stand out from the rest. The chance of rain comes from many runs of the same model with slightly different starting data.

Outlook

How the coming weeks and months compare with what is normal for the time of year. It is a trend, not a day-by-day forecast.

Next few weeks, compared with normal: a bit warmer and normal rain.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	A bit below −1.3 °F	Below −74%	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit above +1.1 °F	Normal	52° / 46°
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +2.2 °F	A bit above +49%	51° / 46°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +1.6 °F	A bit above +33%	50° / 44°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +0.9 °F	Normal	49° / 44°

Coming months

When	TemperatureTemp.	Rain
November	A bit above +1.1 °F	A bit above +21%
December	A bit above +2.0 °F	A bit above +25%
January	A bit above +1.6 °F	Normal
February	A bit above +1.4 °F	Normal
March	A bit above +1.4 °F	Normal

Weeks: ECMWF 46-day (average of its scenarios), against the normal of the last 20 years for those dates. Months: ECMWF SEAS5. Rain: total against normal. The further ahead, the closer it gets to normal and the less detail it can give. The long-range sea temperature isn't usable at this spot (the model's grid cell falls on land).

Dartmouth climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Dartmouth is from July to August: highs of 67 °F, about 10 rainy days a month and 6 hours of sunshine a day.

48° 39°

JanJ
48° 39°

FebF
51° 40°

MarM
54° 42°

AprA
59° 47°

MayM
64° 52°

JunJ
67° 55°

JulJ
67° 55°

AugA
64° 52°

SepS
58° 48°

OctO
53° 44°

NovN
49° 40°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves
JanuaryJan	48°	39°	4.29 in	14	1.6	50°	4.3 ft
FebruaryFeb	48°	39°	3.44 in	11	2.6	49°	4.6 ft
MarchMar	51°	40°	2.97 in	11	4.1	48°	3.5 ft
AprilApr	54°	42°	2.74 in	10	5.9	50°	2.8 ft
MayMay	59°	47°	2.45 in	9	6.9	53°	2.4 ft
JuneJun	64°	52°	2.26 in	9	7.1	57°	2.4 ft
JulyJul	67°	55°	2.41 in	9	6.6	60°	1.9 ft
AugustAug	67°	55°	3.06 in	10	5.8	62°	2.3 ft
SeptemberSep	64°	52°	2.67 in	10	5.2	62°	2.6 ft
OctoberOct	58°	48°	4.62 in	14	3.0	60°	3.6 ft
NovemberNov	53°	44°	4.70 in	15	2.2	56°	4.1 ft
DecemberDec	49°	40°	4.72 in	15	1.1	53°	4.7 ft

Month	Water	Waves
Jan	50°	4.3 ft
Feb	49°	4.6 ft
Mar	48°	3.5 ft
Apr	50°	2.8 ft
May	53°	2.4 ft
Jun	57°	2.4 ft
Jul	60°	1.9 ft
Aug	62°	2.3 ft
Sep	62°	2.6 ft
Oct	60°	3.6 ft
Nov	56°	4.1 ft
Dec	53°	4.7 ft

Days: rainy days in the month. Sun: hours a day.

A normal year brings 40.34 in of rain on about 136 days and about 1,600 hours of sunshine.

1991–2020 averages. Highs, lows and rainfall: TerraClimate; rainy days (0.04 in or more): NASA POWER (MERRA-2); sunshine hours: estimated from solar radiation; water: NOAA OISST; waves (average height): ERA5, 2011–2020. Normals are not a forecast: any given year can turn out very different. Sources and licenses

Temperature

Now50 °Ffeels like 48 °F

Tomorrow48 / 58 °F

It's 50 °F now (feels like 48 °F). Today, 49 °F to 59 °F; tomorrow, 48 °F to 58 °F.

Chance of rain

Today 24%
Thu 29 0%
Fri 30 0%
Sat 31 2%
Sun 1 1%
Mon 2 6%
Tue 3 18%

Today the chance of rain reaches 24%. No significant rain expected this week.

Recent rain: last 24 hours, 0.00 in; last 3 days, 0.57 in; last 7 days, 2.95 in.

Humidity and dew point

Humidity92%

Dew point48 °F

Humidity is 92% now and the dew point is 48 °F. The temperature is very close to the dew point: fog may form.

The dew point is the temperature at which the air becomes saturated: the higher it is, the heavier the air feels.

Visibility and fog

Now14 migood

Clouds100%

Visibility is good now (14 mi). No fog expected today.

UV index

Now0

Today's peak1low

Thu 29: 2 · Fri 30: 2 · Sat 31: 2

Index	Level	What to do
0–2	low	No special protection needed.
3–5	moderate	Hat, sunglasses and sunscreen around midday.
6–7	high	Sunscreen, hat and shade between 12 and 4 pm.
8–10	very high	Avoid the midday sun; reflection off the water adds to it.
11+	extreme	Avoid the sun between 11 am and 5 pm; protect yourself even if it is cloudy.

Reflection off water and sand adds radiation: protect yourself more on a boat or at the beach.

Barometric pressure

↗ Rising Anglers say fish bite less for a while
→ Steady · now Anglers expect normal activity
↘ Falling Anglers say fish feed more before the change

30.2030.3030.40 30.30

Steady now (−0.00 inHg in 3 hours). Over the next 48 hours: +0.03 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityFair · 37

PollenNoneToday, at most none.

Pollen: Copernicus CAMS model (a rough guide, not a pollen trap). Levels use each type's usual thresholds.

Previous days

The weather over the last 30 days, as the models analyzed it. Tap a day to see it hour by hour.

Day	Sky	Low / high	Rain	Max wind
Tue 27	Heavy drizzle	53 / 60 °F	0.25 in	28 mph WSW
Mon 26	Light rain	55 / 61 °F	0.37 in	28 mph SSW
Sun 25	Drizzle	53 / 56 °F	0.07 in	25 mph W
Sat 24	Rain	51 / 60 °F	1.24 in	34 mph WSW
Fri 23	Light rain	50 / 55 °F	0.40 in	33 mph WNW
Thu 22	Rain	53 / 59 °F	0.72 in	32 mph SW
Wed 21	Light rain	50 / 55 °F	0.31 in	24 mph W

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Tue 20	Light drizzle	49 / 58 °F	0.09 in	15 mph WSW
Mon 19	Light drizzle	48 / 56 °F	0.07 in	18 mph E
Sun 18	Overcast	44 / 56 °F	0	13 mph NNE
Sat 17	Overcast	46 / 57 °F	0	13 mph NNE
Fri 16	Drizzle	49 / 61 °F	0.11 in	14 mph NW
Thu 15	Light drizzle	61 / 65 °F	0.07 in	19 mph SW
Wed 14	Light drizzle	55 / 63 °F	0.03 in	14 mph SSW
Tue 13	Light drizzle	56 / 65 °F	0.06 in	21 mph WSW
Mon 12	Light rain	60 / 65 °F	0.32 in	20 mph SSW
Sun 11	Drizzle	53 / 60 °F	0.20 in	19 mph SSW
Sat 10	Overcast	54 / 60 °F	0	15 mph WNW
Fri 9	Light drizzle	56 / 63 °F	0.12 in	25 mph W
Thu 8	Light drizzle	49 / 60 °F	0.02 in	20 mph WNW
Wed 7	Light rain	51 / 59 °F	0.31 in	18 mph NNW
Tue 6	Light rain	54 / 64 °F	0.06 in	11 mph NE
Mon 5	Overcast	52 / 64 °F	0	7 mph WNW
Sun 4	Overcast	51 / 66 °F	0	4 mph NNW
Sat 3	Overcast	57 / 67 °F	0	8 mph WSW
Fri 2	Light drizzle	60 / 65 °F	0.01 in	14 mph SSW
Thu 1	Drizzle	56 / 64 °F	0.12 in	14 mph WSW
Wed 30	Light rain	56 / 67 °F	0.54 in	19 mph SSW
Tue 29	Light rain	61 / 70 °F	0.24 in	19 mph SE
Mon 28	Overcast	49 / 63 °F	0	13 mph ENE

These are the models at the start of each day (ECMWF and GFS; waves from Météo-France), not readings from a weather station: there can be differences at specific spots.

Questions about the weather in DartmouthQuestions

What's the weather like today in Dartmouth?

Overcast, from 49 °F to 59 °F, with a light breeze from the southwest (4 mph) and a 24% chance of rain.

Will it rain tomorrow in Dartmouth?

On Thursday 29 the chance of rain is 0% (0.00 in): overcast.

How warm will it be this week?

Between a low of 46 °F and a high of 59 °F; the warmest day, Friday 30.

What's the UV index today?

It reaches 1 (low). No special protection needed.

Is the pressure rising or falling?

It's 30.35 inHg and steady: +0.14 inHg over the last 24 hours.

When is the best time to visit Dartmouth?

The best time to visit Dartmouth is from July to August: highs of 67 °F, about 10 rainy days a month and 6 hours of sunshine a day.

What is the weather like in Dartmouth in October?

In October, Dartmouth normally sees highs of 58 °F and lows of 48 °F, with about 14 rainy days (4.62 in for the month) and 3 hours of sunshine a day. The sea is around 60 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Dartmouth?

The warmest is July, with average highs of 67 °F, and the coldest February, with lows of 39 °F. The wettest is December (4.72 in) and the driest, June.

More about Dartmouth today

Weather near Dartmouth

Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.

Learn more

Weather: Open-Meteo, CC BY 4.0, with the best model for each spot and lead time (NOAA HRRR and NBM in the U.S., Météo-France AROME, DWD ICON-EU, ECMWF IFS and NOAA GFS); ECMWF grid point 10 mi away. The comparison also uses ICON (DWD), AIFS (ECMWF) and ARPEGE (Météo-France). Outlook: ECMWF 46-day and SEAS5. Chance of rain from ensemble models (ECMWF, GEFS and NBM). UV, air quality and pollen: CAMS (Copernicus).

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 11:47 pm (local time).

Spotted a mistake? Tell us · Where the weather and sea data come from