Hyannis Harbor, MA Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Fri
Jun 19 		Clear
Close Hourly 		-º / 62º 1% W 14 mph 63%
10pm Clear 69º 1% WSW 10 mph 63%
11pm Clear 69º 1% W 9 mph 60%
Sat
Jun 20 		Mostly Sunny
View Hourly 		80º / 59º 18% WNW 17 mph 50%
12am Clear 68º 0% W 11 mph 58%
1am Clear 66º 0% WNW 11 mph 58%
2am Clear 65º 0% W 11 mph 62%
3am Clear 65º 0% W 12 mph 63%
4am Clear 64º 1% W 12 mph 64%
5am Clear 63º 1% W 12 mph 66%
6am Sunny 64º 1% W 14 mph 65%
7am Sunny 66º 0% W 15 mph 61%
8am Sunny 68º 0% W 17 mph 58%
9am Sunny 70º 0% W 16 mph 55%
10am Sunny 72º 0% WNW 14 mph 53%
11am Mostly Sunny 74º 0% W 15 mph 49%
12pm Partly Cloudy 75º 0% W 14 mph 48%
1pm Partly Cloudy 77º 0% WNW 14 mph 46%
2pm Mostly Cloudy 77º 1% WNW 14 mph 46%
3pm Partly Cloudy 78º 5% WNW 14 mph 44%
4pm Partly Cloudy 78º 13% WNW 12 mph 45%
5pm Partly Cloudy 77º 18% WNW 11 mph 47%
6pm Mostly Cloudy 76º 18% WNW 10 mph 51%
7pm Partly Cloudy 72º 13% NW 8 mph 61%
8pm Partly Cloudy 70º 20% W 5 mph 66%
9pm Mostly Cloudy 68º 12% NW 2 mph 72%
10pm Partly Cloudy 66º 6% WNW 1 mph 76%
11pm Partly Cloudy 66º 4% WNW 3 mph 76%
Sun
Jun 21 		Partly Cloudy
View Hourly 		77º / 61º 12% WSW 12 mph 55%
12am Mostly Clear 65º 5% WNW 5 mph 77%
1am Mostly Clear 64º 6% WNW 4 mph 77%
2am Clear 64º 5% WNW 4 mph 79%
3am Clear 63º 5% WNW 4 mph 80%
4am Clear 61º 5% WNW 4 mph 84%
5am Clear 60º 5% WNW 3 mph 84%
6am Sunny 62º 4% W 4 mph 78%
7am Sunny 66º 2% W 5 mph 71%
8am Partly Cloudy 68º 2% W 6 mph 66%
9am Partly Cloudy 71º 1% W 6 mph 59%
10am Partly Cloudy 72º 1% WSW 7 mph 56%
11am Partly Cloudy 73º 2% SW 9 mph 53%
12pm Partly Cloudy 75º 1% SW 9 mph 51%
1pm Partly Cloudy 75º 1% SW 11 mph 49%
2pm Partly Cloudy 76º 4% SW 11 mph 49%
3pm Partly Cloudy 76º 3% SW 12 mph 49%
4pm Partly Cloudy 75º 12% WSW 12 mph 51%
5pm Partly Cloudy 75º 2% WSW 11 mph 50%
6pm Partly Cloudy 74º 2% WSW 10 mph 53%
7pm Sunny 72º 4% WSW 9 mph 61%
8pm Mostly Sunny 69º 2% WSW 6 mph 68%
9pm Mostly Clear 68º 2% WSW 6 mph 73%
Mon
Jun 22 		Rain 74º / 65º 73% SSW 11 mph 68%
Tue
Jun 23 		Showers 71º / 63º 79% WNW 13 mph 81%
Wed
Jun 24 		Mostly Sunny 77º / 63º 10% W 8 mph 64%
Thu
Jun 25 		Partly Cloudy 77º / 64º 9% SSW 10 mph 65%
Fri
Jun 26 		PM Showers 75º / 64º 31% S 10 mph 70%

Weather Radar for Hyannis Harbor, MA See Radar

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* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Hyannis Harbor, MA

Tonight
Low : 62ºF
W wind 9 to 11 kt, with gusts as high as 22 kt. Clear. Seas 2 to 3 ft.
Saturday
High : 74ºF
W wind 13 to 15 kt, with gusts as high as 26 kt. Scattered showers, mainly after 4pm. Seas around 3 ft.
Saturday Night
Low : 61ºF
W wind 5 to 7 kt. Isolated showers before 9pm. Seas 1 to 2 ft.
Sunday
High : 72ºF
W wind 5 to 8 kt becoming SW in the afternoon. A slight chance of showers before 2pm, then a slight chance of showers after 4pm. Seas around 1 ft.
Sunday Night
Low : 66ºF
SW wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas around 1 ft.
Monday
High : 72ºF
Variable winds less than 5 kt becoming SSE 8 to 13 kt in the morning. Winds could gust as high as 20 kt. Showers likely, mainly after 3pm. Seas 1 ft building to 3 ft.
Monday Night
Low : 66ºF
S wind around 18 kt becoming SW after midnight. Winds could gust as high as 27 kt. Showers. Seas around 3 ft.
Tuesday
High : 73ºF
SW wind 9 to 13 kt, with gusts as high as 21 kt. Showers likely. Seas 2 to 3 ft.
Tuesday Night
Low : 66ºF
WSW wind around 6 kt becoming WNW after midnight. Partly cloudy. Seas around 1 ft.

NOAA Buoy Data Near Hyannis Harbor, MA See Map

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    Wind Speed Forecast for Hyannis Harbor, MA

    SaturdaySunday
    Wind Speed (MPH) 10111414141014471110
    2am6am10am2pm6pm10pm2am6am10am2pm6pm10pm
    MPH 10111414141014471110
    DIR WSWWWWNWWNWWNWWNWWNWWWSWSWWSW

    Current Weather Conditions In Hyannis Harbor, MA

    As Of: 43 minutes ago

    • 69ºF
    • 69ºF
    • 10mph
    • 0º (WSW)
    • 19mph
    • Clear
    • 10mi
    • 29.62"
    • 63%
    • 0ºF

    The weather right now in Hyannis Harbor, MA is Clear. The current temperature is 69°F, and the expected high and low for today, Friday, June 19, 2026, are -° high temperature and 62°F low temperature. The wind is currently blowing at 10 miles per hour, and coming from the West Southwest. The wind is gusting to 19 mph. With the wind and the atmosphere the temperature feels like 69° Fahrenheit. Expected precipitation is 1 percent, with current humidity at 63 percent, and air pressure at 29.62 in. Visibility is 10 nautical miles. There are 1 current weather alert(s).

    Weather Alerts
    Small Craft Advisory - 2:20pm Fri Jun 19 2026

    ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 PM EDT SATURDAY...

    WHAT: West winds 10 to 20 kt with gusts up to 30 kt and seas
    3 to 5 feet.

    WHERE: Nantucket Sound, Vineyard Sound and Buzzards Bay.

    WHEN: Until 9 PM EDT Saturday.

    IMPACTS: Conditions will be hazardous to small craft.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Inexperienced mariners, especially those operating smaller
    vessels, should avoid navigating in hazardous conditions.

    &&