Hyannis Harbor Weather

41°39'N 70°17'W

Home Harbor Resources

Current Conditions
Overcast
64°F
Feels like: 64°F
Wind Chill: 64°F Ceiling: 400ft
Heat Index: 64°F Visibility: 5mi
Dew Point: 63°F Wind: 23mph
Humidity: 96% Direction: 10° (N)
Pressure: 29.74" Gusts: 35mph
Reported: 12 minutes 13 seconds ago
September 21, 2017 12:45 am EST
Location: 41.582N 70.525W or 10 nautical miles WSW of search location of 41.630118N 70.302589W.
Wind Speed: 7 knots
Atmospheric Pressure: 29.77 in (1008.0 mb)
Air Temperature: 66°F (18.8°C)
Dew Point: 65°F (18.2°C)
September 21, 2017 12:50 am EST
Location: 41.439N 70.186W or 13 nautical miles SSE of search location of 41.630118N 70.302589W.
Wind Direction: N (360°)
Wind Speed: 25 knots
Wind Gust: 31 knots
Significant Wave Height: 6 ft
Dominant Wave Period: 5 sec
Average Period: 4.3 sec
Mean Wave Direction: NNE (18°)
Atmospheric Pressure: 29.68 in (1005.2 mb)
Pressure Tendency: -0.01 in (-0.3 mb)
Air Temperature: 65°F (18.5°C)
Dew Point: 65°F (18.5°C)
Water Temperature: 65°F (18.1°C)
September 21, 2017 12:34 am EST
Location: 41.84N 70.329W or 13 nautical miles N of search location of 41.630118N 70.302589W.
Significant Wave Height: 5 ft
Dominant Wave Period: 5 sec
Average Period: 4.3 sec
Mean Wave Direction: NNE (13°)
Water Temperature: 59°F (14.9°C)

Hurricane Local Statement issued September 20 at 11:16PM EDT by NWS... AREAS: Barnstable; Dukes; Nantucket ... This product covers Southern New England **Strongest winds are expecte ... more info

Tropical Storm Warning issued September 20 at 10:59PM EDT until furthe... AREAS: Barnstable ... ...TROPICAL STORM WARNING REMAINS IN EFFECT... * LOCATIONS AFFECTED - ... more info

Tropical Storm Warning issued September 20 at 10:59PM EDT until furthe... AREAS: Dukes ... ...TROPICAL STORM WARNING REMAINS IN EFFECT... * LOCATIONS AFFECTED - ... more info

Tropical Storm Warning issued September 20 at 10:59PM EDT until furthe... AREAS: Nantucket ... ...TROPICAL STORM WARNING REMAINS IN EFFECT... * LOCATIONS AFFECTED - ... more info

Wind Advisory issued September 20 at 10:28PM EDT until September 22 at... AREAS: Eastern Essex; Eastern Norfolk; Eastern ... ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT FRIDAY... * Location ... more info

Flash Flood Watch issued September 20 at 10:24PM EDT until September 2... AREAS: Nantucket ... ...FLASH FLOOD WATCH IN EFFECT THROUGH THURSDAY MORNING... ...FLASH FL ... more info

Coastal Flood Advisory issued September 20 at 10:23PM EDT until Septem... AREAS: Eastern Plymouth ... ...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 4 AM EDT FRIDAY... . ... more info

High Surf Advisory issued September 20 at 10:23PM EDT until September ... AREAS: Eastern Essex; Southern Bristol ... ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT FRIDAY... * LOC ... more info

High Surf Advisory issued September 20 at 10:23PM EDT until September ... AREAS: Eastern Plymouth ... ...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 4 AM EDT FRIDAY... . ... more info

Wednesday, September 20
6:26am / 6:41pm 6:39am / 7:13pm
Showers/Wind
66°
63°
Day:
Night: Windy. A steady light rain this evening with showers continuing overnight. Low 63F. Winds NNE at 25 to 35 mph. Chance of rain 90%. Winds could occasionally gust over 40 mph.
Thursday, September 21
6:27am / 6:39pm 7:44am / 7:44pm
AM Showers/Wind
65°
60°
Day: Showers in the morning then continued cloudy and windy in the afternoon. High near 65F. Winds N at 25 to 35 mph. Chance of rain 50%. Winds could occasionally gust over 40 mph.
Night: Windy with rain likely. Low near 60F. Winds NNE at 20 to 30 mph. Chance of rain 90%. Rainfall around a half an inch. Winds could occasionally gust over 40 mph.
Friday, September 22
6:28am / 6:37pm 8:45am / 8:14pm
Rain/Wind
64°
61°
Rain and wind. Highs in the mid 60s and lows in the low 60s.
Saturday, September 23
6:29am / 6:35pm 9:46am / 8:45pm
Showers
67°
63°
Showers. Highs in the upper 60s and lows in the low 60s.
Sunday, September 24
6:30am / 6:34pm 10:45am / 9:19pm
Partly Cloudy
71°
63°
Times of sun and clouds. Highs in the low 70s and lows in the low 60s.
Monday, September 25
6:31am / 6:32pm 11:43am / 9:56pm
Partly Cloudy
74°
63°
Mix of sun and clouds. Highs in the mid 70s and lows in the low 60s.
Tuesday, September 26
6:32am / 6:30pm 12:37pm / 10:36pm
Showers
72°
62°
Showers possible. Highs in the low 70s and lows in the low 60s.
Wednesday, September 27
6:33am / 6:28pm 1:30pm / 11:21pm
PM Showers
70°
64°
Afternoon showers. Highs in the low 70s and lows in the mid 60s.
Thursday, September 28
6:34am / 6:27pm 2:18pm / 12:01am
PM Showers
70°
61°
Chance of afternoon showers. Highs in the low 70s and lows in the low 60s.
Friday, September 29
6:35am / 6:25pm 3:03pm / 12:10am
Partly Cloudy
69°
59°
Times of sun and clouds. Highs in the upper 60s and lows in the upper 50s.
Wind Forecast
Day ThursdayFriday
MPH 26 24 27 27 23 22 24 25 25 23 18 17
NNE
NNE
N
N
NNE
NNE
NNE
NNE
NNE
NNE
NNE
NE
Radar
Marine Forecast
...TROPICAL STORM WARNING IN EFFECT...
Synopsis: ANZ200-211515- 1024 PM EDT Wed Sep 20 2017 .Synopsis for Massachusetts and Rhode Island coastal waters... Tropical Storm Jose will become nearly stationary southeast of the waters over the next few days and slowly weaken. Mariners can expect the highest winds and heavier rain bands across the waters off the south coast through Friday morning. Mariners should monitor the latest forecasts from the National Hurricane Center at www.nhc.noaa.gov. For information on possible hazardous weather beyond the 24-36 hour forecast period, please visit www.weather.gov/boston and follow the Current Hazards link above the map on the left. $$
Overnight
Tropical storm conditions possible. N wind 15 to 20 kt, with gusts as high as 35 kt. Rain. Patchy fog. Seas around 3 ft.
Thursday
Tropical storm conditions possible. NNE wind 20 to 25 kt, with gusts as high as 45 kt. Rain. Patchy fog. Seas around 3 ft.
Thursday Night
NNE wind around 23 kt, with gusts as high as 46 kt. A chance of showers. Seas around 3 ft.
Friday
NNE wind 22 to 24 kt, with gusts as high as 36 kt. A chance of showers. Seas around 4 ft.
Friday Night
NE wind around 18 kt, with gusts as high as 30 kt. A chance of showers. Seas around 3 ft.
Saturday
NNE wind 14 to 17 kt. A chance of showers, mainly before noon. Seas around 2 ft.
Saturday Night
NNE wind 9 to 12 kt. Mostly cloudy. Seas 1 to 2 ft.
Sunday
NNE wind 9 to 11 kt. Mostly sunny. Seas around 1 ft.
Sunday Night
NNE wind 5 to 8 kt becoming ENE after midnight. Partly cloudy. Seas around 1 ft.
Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.