Weather in Chilmark

14-day forecast · updated today, Wednesday, October 28, at 9:47 pm (EDT)

Now · mainly clear 50 °F

Feels like: 45 °F
Low / high: 37 / 57 °F
Rain: 0%
Wind: 7 mph SSW

→ 30.38 inHg · steady

Today in Chilmark: overcast, 37 °F to 57 °F, with a 0% chance of rain and a light breeze from the south-southwest (7 mph). Tomorrow, clear sky, 51 °F to 62 °F and a 1% chance of rain. The warmest day of the week is Friday 30, at 65 °F. Next likely rain: Wednesday 4 (18%).

Temperatures for the next 14 days

57° 37°
Today
62° 51°
Thu 29
65° 50°
Fri 30
55° 44°
Sat 31
57° 44°
Sun 1
61° 51°
Mon 2
61° 51°
Tue 3
60° 51°
Wed 4
61° 52°
Thu 5
61° 52°
Fri 6
58° 48°
Sat 7
56° 48°
Sun 8
53° 46°
Mon 9
54° 49°
Tue 10

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 28	Overcast	37 / 57 °F	0%	11 mph SSE	1.7 ft	12:42 am · 12:52 pm	HRRR
Thu 29	Clear sky	51 / 62 °F	1%	12 mph SW	2.6 ft	1:32 am · 1:43 pm	HRRR + NBM
Fri 30	Partly cloudy	50 / 65 °F	6%	14 mph W	3.2 ft	2:25 am · 2:37 pm	NBM
Sat 31	Partly cloudy	44 / 55 °F	0%	15 mph NNW	2.6 ft	3:23 am · 3:35 pm	NBM
Sun 1	Mainly clear	44 / 57 °F	1%	9 mph WSW	1.9 ft	3:25 am · 3:40 pm	NBM
Mon 2	Overcast	51 / 61 °F	7%	11 mph WSW	1.8 ft	4:31 am · 4:48 pm	NBM
Tue 3	Overcast	51 / 61 °F	9%	11 mph NE	1.7 ft	5:37 am · 5:56 pm	NBM
Wed 4	Overcast	51 / 60 °F	18% · 0.44 in	13 mph ESE	2.8 ft	6:39 am · 7:02 pm	NBM
Thu 5	Overcast	52 / 61 °F	34% · 0.39 in	15 mph ESE	3.4 ft	7:37 am · 8:03 pm	NBM
Fri 6	Light drizzle	52 / 61 °F	47% · 0.72 in	16 mph E	4.3 ft	8:28 am · 8:56 pm	NBM
Sat 7	Light rain	48 / 58 °F	35% · 0.20 in	13 mph W	4.9 ft	9:13 am · 9:44 pm	NBM
Sun 8	Overcast	48 / 56 °F	23% · 0.06 in	13 mph NNW	4.5 ft	9:54 am · 10:28 pm	NBM + ECMWF
Mon 9	Clear sky	46 / 53 °F	18%	11 mph NNW	2.2 ft	10:33 am · 11:09 pm	ECMWF
Tue 10	Overcast	49 / 54 °F	14%	12 mph ENE	1.6 ft	11:11 am · 11:50 pm	ECMWF

Each hour comes from the best model for this spot: HRRR until Thursday 29 4:00 pm; then NBM until Sunday 8 2:00 pm; then ECMWF until Thursday 12 10:00 am; 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	Mainly clear	Mainly clear	Overcast	Mainly clear	Mainly clear	Partly cloudy
Temperature	40°	42°	37°	48°	57°	56°	52°	50°
Chance of rain	0%	0%	0%	0%	0%	0%	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)	4 ENE	1 E	8 NNE	6 N	8 SSE	7 S	7 SSW	7 SSW
Humidity	64%	53%	66%	70%	63%	54%	65%	68%
UV	0	0	0	1	3	2	0	0
Model	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR

Do the models agree?

Medium confidence

They broadly agree, but not quite on temperature on Friday 30: take it with some caution.

What 6 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	56°	60°	61°	54°	56°	60°	61°
AIFS	56°	59°	61°	55°	55°	60°	60°
GFS	59°	64°	69°	53°	57°	64°	60°
ICON	56°	63°	66°	51°	56°	61°	59°
HRRR	57°	62°	—	—	—	—	—
NBM	56°	63°	65°	55°	57°	61°	61°
Confidence	high	high	medium	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	0	0	0	0	0	0
AIFS	0	0	0.02 in	0	0	0	0
GFS	0	0	0	0	0	0	0
ICON	0	0	0	0	0	0	0
HRRR	0	0	—	—	—	—	—
NBM	0	0	0	0	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	1114	1924	2331	2029	1222	2327	1717
AIFS	9	16	21	21	11	19	19
GFS	611	1331	2034	1432	917	1330	1124
ICON	511	920	920	1123	819	1124	1531
HRRR	1114	1329	—	—	—	—	—
NBM	79	1219	1421	1521	913	1115	1115
Confidence	high	high	medium	medium	high	medium	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)	0%	0%	6%	0%	2%	2%	5%
GFS (GEFS, 31 scenarios)	0%	0%	0%	0%	0%	23%	23%
NBM (NOAA)	0%	1%	6%	0%	1%	7%	9%
Thunderstorm (NBM)	0%	0%	2%	0%	0%	1%	1%

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, normal rain and a slightly warmer sea.

Next 6 weeks

When	TemperatureTemp.	Rain	Sea	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Above +4.0 °F	Normal	A bit above +0.5 °F	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit above +1.3 °F	Normal	A bit above +1.1 °F	52° / 48°
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +1.8 °F	Normal	A bit above +1.3 °F	51° / 47°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +2.2 °F	A bit above +31%	A bit above +1.3 °F	49° / 46°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +1.8 °F	A bit above +22%	A bit above +1.1 °F	47° / 43°

Coming months

When	TemperatureTemp.	Rain	Sea
November	A bit above +1.3 °F	Normal	A bit above +0.9 °F
December	Above +2.9 °F	A bit above +24%	Above +2.0 °F
January	Above +4.0 °F	A bit above +36%	Above +3.1 °F
February	Above +3.4 °F	A bit above +26%	Above +3.4 °F
March	Above +2.9 °F	A bit above +20%	Above +2.7 °F

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.

Chilmark climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Chilmark is from June to September: highs of 72 °F to 80 °F, about 8 rainy days a month and 7 hours of sunshine a day.

Hurricane season: from July to August, peaking in July. In the last 30 years (1996–2025), 9 tropical cyclones passed within 93 mi of Chilmark, about 3 every 10 years. The most recent: Henri, in August 2021.

39° 25°

JanJ
40° 25°

FebF
46° 31°

MarM
54° 39°

AprA
64° 48°

MayM
73° 58°

JunJ
80° 65°

JulJ
78° 64°

AugA
72° 58°

SepS
63° 48°

OctO
54° 39°

NovN
45° 31°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	39°	25°	4.01 in	8	3.6	42°	4.2 ft	–
FebruaryFeb	40°	25°	3.58 in	7	4.9	38°	4.0 ft	–
MarchMar	46°	31°	4.61 in	9	5.2	39°	3.7 ft	–
AprilApr	54°	39°	4.27 in	9	6.1	44°	3.8 ft	–
MayMay	64°	48°	3.76 in	9	6.7	52°	3.0 ft	–
JuneJun	73°	58°	3.87 in	9	7.4	61°	2.7 ft	–
JulyJul	80°	65°	2.95 in	8	8.1	68°	2.7 ft	4
AugustAug	78°	64°	3.65 in	9	7.3	70°	2.6 ft	3
SeptemberSep	72°	58°	4.06 in	8	6.1	67°	3.1 ft	2
OctoberOct	63°	48°	4.68 in	8	4.8	61°	3.6 ft	–
NovemberNov	54°	39°	4.62 in	8	3.6	54°	3.9 ft	–
DecemberDec	45°	31°	4.80 in	9	3.0	48°	4.0 ft	–

Month	Water	Waves	Cyclones
Jan	42°	4.2 ft	–
Feb	38°	4.0 ft	–
Mar	39°	3.7 ft	–
Apr	44°	3.8 ft	–
May	52°	3.0 ft	–
Jun	61°	2.7 ft	–
Jul	68°	2.7 ft	4
Aug	70°	2.6 ft	3
Sep	67°	3.1 ft	2
Oct	61°	3.6 ft	–
Nov	54°	3.9 ft	–
Dec	48°	4.0 ft	–

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

A normal year brings 48.86 in of rain on about 100 days and about 2,000 hours of sunshine.

Cyclones: how many tropical cyclones (tropical storms, hurricanes and typhoons) passed within 93 mi in each month from 1996 to 2025, according to IBTrACS (NOAA).

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 45 °F

Tomorrow51 / 62 °F

It's 50 °F now (feels like 45 °F). Today, 37 °F to 57 °F; tomorrow, 51 °F to 62 °F.

Chance of rain

Today 0%
Thu 29 1%
Fri 30 6%
Sat 31 0%
Sun 1 1%
Mon 2 7%
Tue 3 9%

Today the chance of rain reaches 0%. The next day with likely rain is Wednesday 4: 18% and 0.44 in.

Recent rain: last 24 hours, 0.00 in; last 3 days, 0.00 in; last 7 days, 0.02 in.

Humidity and dew point

Humidity67%

Dew point40 °F

Humidity is 67% now and the dew point is 40 °F.

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

Visibility and fog

Now15 migood

Clouds24%

Visibility is good now (15 mi). No fog expected today.

The model gives visibility up to about 15 mi: beyond that, the horizon is clear.

UV index

Now0

Today's peak4moderate

Thu 29: 3 · Fri 30: 3 · Sat 31: 3

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

30.0030.2030.40 29.96

Steady now (−0.01 inHg in 3 hours). Over the next 48 hours: −0.24 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityGood · 38

Saharan dustNo

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	Clear sky	51 / 60 °F	0	16 mph NNE
Mon 26	Clear sky	54 / 60 °F	0	17 mph W
Sun 25	Overcast	42 / 56 °F	0	9 mph SSW
Sat 24	Clear sky	48 / 54 °F	0	9 mph NW
Fri 23	Clear sky	49 / 56 °F	0	22 mph NNE
Thu 22	Light drizzle	54 / 57 °F	0.02 in	28 mph N
Wed 21	Overcast	54 / 56 °F	0	28 mph NNE

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Tue 20	Overcast	52 / 59 °F	0	24 mph NNE
Mon 19	Mainly clear	50 / 56 °F	0	19 mph NE
Sun 18	Clear sky	45 / 54 °F	0	22 mph NNE
Sat 17	Heavy drizzle	48 / 64 °F	0.26 in	24 mph NNW
Fri 16	Light rain	56 / 66 °F	0.43 in	25 mph SSW
Thu 15	Mainly clear	56 / 64 °F	0	21 mph N
Wed 14	Overcast	65 / 67 °F	0	22 mph WSW
Tue 13	Overcast	58 / 65 °F	0	17 mph ESE
Mon 12	Drizzle	58 / 64 °F	0.08 in	22 mph N
Sun 11	Rain	56 / 62 °F	0.81 in	29 mph ESE
Sat 10	Overcast	56 / 63 °F	0	12 mph NNW
Fri 9	Overcast	60 / 64 °F	0	19 mph W
Thu 8	Mainly clear	62 / 65 °F	0	23 mph WSW
Wed 7	Clear sky	52 / 63 °F	0	14 mph SW
Tue 6	Clear sky	52 / 60 °F	0	24 mph WNW
Mon 5	Overcast	59 / 64 °F	0	24 mph WNW
Sun 4	Light rain	56 / 61 °F	0.19 in	17 mph ENE
Sat 3	Light drizzle	58 / 64 °F	0.02 in	16 mph NE
Fri 2	Heavy drizzle	64 / 65 °F	0.12 in	22 mph WSW
Thu 1	Overcast	61 / 65 °F	0	19 mph SW
Wed 30	Overcast	61 / 62 °F	0	8 mph SW
Tue 29	Overcast	59 / 63 °F	0	14 mph WNW
Mon 28	Light rain	61 / 64 °F	0.37 in	17 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 ChilmarkQuestions

What's the weather like today in Chilmark?

Overcast, from 37 °F to 57 °F, with a light breeze from the south-southwest (7 mph) and a 0% chance of rain.

Will it rain tomorrow in Chilmark?

On Thursday 29 the chance of rain is 1% (0.00 in): clear sky.

How warm will it be this week?

Between a low of 37 °F and a high of 65 °F; the warmest day, Friday 30.

What's the UV index today?

It reaches 4 (moderate). Hat, sunglasses and sunscreen around midday.

Is the pressure rising or falling?

It's 30.38 inHg and steady: −0.02 inHg over the last 24 hours.

When is the best time to visit Chilmark?

The best time to visit Chilmark is from June to September: highs of 72 °F to 80 °F, about 8 rainy days a month and 7 hours of sunshine a day.

What is the weather like in Chilmark in October?

In October, Chilmark normally sees highs of 63 °F and lows of 48 °F, with about 8 rainy days (4.68 in for the month) and 5 hours of sunshine a day. The sea is around 61 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Chilmark?

The warmest is July, with average highs of 80 °F, and the coldest January, with lows of 25 °F. The wettest is December (4.80 in) and the driest, July.

When is hurricane season in Chilmark?

Hurricane season: from July to August, peaking in July. In the last 30 years (1996–2025), 9 tropical cyclones passed within 93 mi of Chilmark, about 3 every 10 years. The most recent: Henri, in August 2021.

More about Chilmark today

Weather near Chilmark

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 6.4 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 9:47 pm (local time).

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