Weather in Sullivan

14-day forecast · updated today, Thursday, October 29, at 12:25 am (EDT)

Now · clear 42 °F

Feels like: 36 °F
Low / high: 41 / 58 °F
Rain: 5%
Wind: 6 mph WSW

↘ 30.28 inHg · falling

Today in Sullivan: mainly clear, 41 °F to 58 °F, with a 5% chance of rain and a light breeze from the west-southwest (6 mph). Tomorrow, light drizzle, 46 °F to 62 °F and a 34% chance of rain. The warmest day of the week is Friday 30, at 62 °F. Next likely rain: Wednesday 4 (19%).

Measured now at the airport

Bar Harbor/Hancock Cnty (KBHB), 9.3 mi away · 29 min ago

Visibility9.9 mi or more

WeatherNothing to note

Temperature43 °F

Wind6 mph from the southwest

It's what the airport's weather station measured, not a forecast: on the coast, wind and fog can be different. Airports report every 30 or 60 minutes.

Airport METAR report, via NOAA's Aviation Weather Center (aviationweather.gov). Sources and licenses

Temperatures for the next 14 days

58° 41°
Today
62° 46°
Fri 30
49° 35°
Sat 31
53° 32°
Sun 1
58° 40°
Mon 2
53° 39°
Tue 3
54° 41°
Wed 4
56° 44°
Thu 5
56° 47°
Fri 6
53° 42°
Sat 7
51° 38°
Sun 8
52° 37°
Mon 9
49° 35°
Tue 10
51° 39°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Mainly clear	41 / 58 °F	5%	13 mph SW	1.9 ft	1:12 am · 1:25 pm	HRRR + NBM
Fri 30	Light drizzle	46 / 62 °F	34%	13 mph W	1.8 ft	2:05 am · 2:19 pm	NBM
Sat 31	Mainly clear	35 / 49 °F	0%	12 mph NW	1.0 ft	3:04 am · 3:20 pm	NBM
Sun 1	Mainly clear	32 / 53 °F	0%	10 mph WSW	0.7 ft	3:07 am · 3:26 pm	NBM
Mon 2	Overcast	40 / 58 °F	5%	10 mph WSW	0.7 ft	4:15 am · 4:36 pm	NBM
Tue 3	Overcast	39 / 53 °F	10%	7 mph NNE	0.8 ft	5:22 am · 5:45 pm	NBM
Wed 4	Overcast	41 / 54 °F	19% · 0.05 in	10 mph SSW	2.4 ft	6:25 am · 6:50 pm	NBM
Thu 5	Overcast	44 / 56 °F	32% · 0.63 in	11 mph S	1.2 ft	7:22 am · 7:49 pm	NBM
Fri 6	Overcast	47 / 56 °F	40% · 1.10 in	12 mph SE	3.7 ft	8:13 am · 8:41 pm	NBM
Sat 7	Light rain	42 / 53 °F	34% · 0.82 in	11 mph SSE	4.7 ft	8:59 am · 9:29 pm	NBM
Sun 8	Drizzle	38 / 51 °F	20% · 0.17 in	11 mph E	3.8 ft	9:41 am · 10:13 pm	NBM + ECMWF
Mon 9	Mainly clear	37 / 52 °F	25%	8 mph NW	1.9 ft	10:21 am · 10:54 pm	ECMWF
Tue 10	Partly cloudy	35 / 49 °F	18%	5 mph N	1.4 ft	10:59 am · 11:34 pm	ECMWF
Wed 11	Overcast	39 / 51 °F	18%	8 mph S	1.6 ft	11:37 am	ECMWF

Each hour comes from the best model for this spot: HRRR until Thursday 29 7:00 pm; then NBM until Sunday 8 8:00 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	Clear	Clear	Clear	Clear sky	Clear sky	Clear sky	Clear	Mainly clear
Temperature	42°	41°	42°	50°	57°	57°	53°	54°
Chance of rain	1%	1%	1%	0%	1%	1%	1%	1%
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)	6 WSW	6 WSW	7 SW	7 SW	9 SW	11 SW	11 SW	11 SW
Humidity	81%	76%	76%	85%	76%	76%	88%	88%
UV	0	0	0	1	3	1	0	0
Model	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	NBM

Do the models agree?

Medium confidence

They broadly agree, but not quite on rain tomorrow: 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	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	56°	60°	47°	52°	58°	56°	58°
AIFS	59°	62°	47°	52°	61°	63°	67°
GFS	60°	64°	48°	53°	56°	49°	47°
ICON	58°	62°	49°	52°	62°	58°	49°
HRRR	58°	62°	—	—	—	—	—
NBM	58°	62°	49°	53°	58°	53°	54°
Confidence	high	high	high	high	high	medium	low

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0	0.07 in	0	0	0	0	0
AIFS	0	0.07 in	0	0	0	0	0
GFS	0	0.04 in	0	0	0	0	0
ICON	0	0.04 in	0	0	0	0	0
HRRR	0	0.07 in	—	—	—	—	—
NBM	0	0	0	0	0	0	0.05 in
Confidence	high	medium	high	high	high	high	high

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	1219	1120	1223	818	818	913	1528
AIFS	12	12	12	10	9	12	13
GFS	1333	1632	1527	914	721	1223	818
ICON	1222	1530	1834	1123	1223	1429	917
HRRR	1233	1330	—	—	—	—	—
NBM	1424	1322	1219	1016	1016	712	1016
Confidence	high	high	high	high	high	high	high

Chance of rain from the ensemble models

Model	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF (51 scenarios)	0%	71%	0%	0%	6%	20%	35%
GFS (GEFS, 31 scenarios)	0%	61%	7%	1%	13%	20%	26%
NBM (NOAA)	5%	34%	0%	0%	5%	10%	19%
Thunderstorm (NBM)	0%	1%	1%	0%	0%	0%	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 and normal rain.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Above +3.8 °F	Normal	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit above +1.3 °F	Normal	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +2.2 °F	A bit below −22%	46° / 37°
Nov 23 – Nov 29Nov 23–Nov 29	Above +2.7 °F	A bit above +26%	44° / 36°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +2.3 °F	Normal	41° / 33°

Coming months

When	TemperatureTemp.	Rain
November	A bit above +1.4 °F	Normal
December	Above +4.1 °F	A bit above +23%
January	Well above +5.6 °F	A bit above +32%
February	Above +4.3 °F	Normal
March	Above +4.1 °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).

Sullivan climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Sullivan is from June to August: highs of 72 °F to 78 °F, about 9 rainy days a month and 7 hours of sunshine a day.

Tropical cyclones rarely pass near Sullivan: one within 93 mi in the last 30 years (1996–2025), Bertha, in July 1996.

30° 11°

JanJ
33° 13°

FebF
40° 22°

MarM
51° 33°

AprA
63° 42°

MayM
72° 50°

JunJ
78° 57°

JulJ
77° 56°

AugA
69° 49°

SepS
58° 40°

OctO
47° 31°

NovN
37° 20°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves
JanuaryJan	30°	11°	4.77 in	9	3.9	42°	6.1 ft
FebruaryFeb	33°	13°	3.92 in	8	5.1	39°	5.9 ft
MarchMar	40°	22°	4.41 in	9	6.0	38°	5.4 ft
AprilApr	51°	33°	4.79 in	10	6.2	40°	5.0 ft
MayMay	63°	42°	4.09 in	10	6.4	44°	3.6 ft
JuneJun	72°	50°	3.94 in	10	7.0	48°	3.2 ft
JulyJul	78°	57°	3.07 in	9	7.4	53°	3.0 ft
AugustAug	77°	56°	2.94 in	8	7.4	55°	2.9 ft
SeptemberSep	69°	49°	4.28 in	8	6.2	54°	3.7 ft
OctoberOct	58°	40°	5.58 in	9	4.1	52°	4.7 ft
NovemberNov	47°	31°	5.82 in	9	2.9	49°	5.3 ft
DecemberDec	37°	20°	5.85 in	11	2.6	46°	5.6 ft

Month	Water	Waves
Jan	42°	6.1 ft
Feb	39°	5.9 ft
Mar	38°	5.4 ft
Apr	40°	5.0 ft
May	44°	3.6 ft
Jun	48°	3.2 ft
Jul	53°	3.0 ft
Aug	55°	2.9 ft
Sep	54°	3.7 ft
Oct	52°	4.7 ft
Nov	49°	5.3 ft
Dec	46°	5.6 ft

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

A normal year brings 53.47 in of rain on about 110 days and about 2,000 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

Now42 °Ffeels like 36 °F

Tomorrow46 / 62 °F

It's 42 °F now (feels like 36 °F). Today, 41 °F to 58 °F; tomorrow, 46 °F to 62 °F.

Chance of rain

Today 5%
Fri 30 34%
Sat 31 0%
Sun 1 0%
Mon 2 5%
Tue 3 10%
Wed 4 19% 0.05 in

Today the chance of rain reaches 5%. The next day with likely rain is Wednesday 4: 19% and 0.05 in.

No rain in the last 7 days.

Humidity and dew point

Humidity80%

Dew point36 °F

Humidity is 80% now and the dew point is 36 °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

Now11 migood

Clouds1%

Visibility is good now (11 mi). No fog expected today.

UV index

Now0

Today's peak3low

Fri 30: 2 · Sat 31: 2 · Sun 1: 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 Anglers expect normal activity
↘ Falling · now Anglers say fish feed more before the change

29.8030.0030.2030.40 29.83

Falling now (−0.04 inHg in 3 hours). Over the next 48 hours: −0.23 inHg. Falling pressure: anglers say fish feed more before the change. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityGood · 33

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	Max wind
Wed 28	Overcast	33 / 47 °F	7 mph WSW
Tue 27	Mainly clear	38 / 48 °F	10 mph NNW
Mon 26	Overcast	41 / 64 °F	11 mph W
Sun 25	Clear sky	38 / 62 °F	7 mph WSW
Sat 24	Clear sky	34 / 54 °F	7 mph NW
Fri 23	Clear sky	40 / 50 °F	13 mph N
Thu 22	Overcast	43 / 55 °F	13 mph N

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Overcast	40 / 56 °F	0	9 mph NE
Tue 20	Overcast	39 / 59 °F	0	10 mph N
Mon 19	Mainly clear	41 / 55 °F	0	7 mph S
Sun 18	Clear sky	34 / 51 °F	0	6 mph WSW
Sat 17	Overcast	38 / 55 °F	0	14 mph NW
Fri 16	Light rain	40 / 58 °F	0.56 in	12 mph S
Thu 15	Overcast	44 / 56 °F	0	12 mph NW
Wed 14	Light rain	49 / 60 °F	0.45 in	12 mph NNW
Tue 13	Rain	40 / 49 °F	0.84 in	12 mph ENE
Mon 12	Drizzle	46 / 64 °F	0.15 in	12 mph NW
Sun 11	Overcast	41 / 56 °F	0	10 mph SSW
Sat 10	Overcast	46 / 56 °F	0	12 mph WNW
Fri 9	Partly cloudy	47 / 61 °F	0	13 mph W
Thu 8	Heavy drizzle	53 / 62 °F	0.21 in	12 mph SW
Wed 7	Overcast	41 / 56 °F	0	9 mph SW
Tue 6	Partly cloudy	47 / 56 °F	0	16 mph WNW
Mon 5	Light drizzle	50 / 62 °F	0.02 in	12 mph W
Sun 4	Overcast	45 / 60 °F	0	8 mph ESE
Sat 3	Overcast	51 / 62 °F	0	8 mph NNW
Fri 2	Drizzle	55 / 72 °F	0.14 in	9 mph WSW
Thu 1	Overcast	53 / 67 °F	0	7 mph SSW
Wed 30	Overcast	55 / 63 °F	0	6 mph NW
Tue 29	Rain	55 / 58 °F	1.28 in	8 mph NNE

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 SullivanQuestions

What's the weather like today in Sullivan?

Mainly clear, from 41 °F to 58 °F, with a light breeze from the west-southwest (6 mph) and a 5% chance of rain.

Will it rain tomorrow in Sullivan?

On Friday 30 the chance of rain is 34% (0.00 in): light drizzle.

How warm will it be this week?

Between a low of 32 °F and a high of 62 °F; the warmest day, Friday 30.

What's the UV index today?

It reaches 3 (low). No special protection needed.

Is the pressure rising or falling?

It's 30.28 inHg and falling: −0.15 inHg over the last 24 hours.

When is the best time to visit Sullivan?

The best time to visit Sullivan is from June to August: highs of 72 °F to 78 °F, about 9 rainy days a month and 7 hours of sunshine a day.

What is the weather like in Sullivan in October?

In October, Sullivan normally sees highs of 58 °F and lows of 40 °F, with about 9 rainy days (5.58 in for the month) and 4 hours of sunshine a day. The sea is around 52 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Sullivan?

The warmest is July, with average highs of 78 °F, and the coldest January, with lows of 11 °F. The wettest is December (5.85 in) and the driest, August.

More about Sullivan today

Weather near Sullivan

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 3.0 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 12:25 am (local time).

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