Nantucket, MA Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Wed
Jul 15 		Partly Cloudy -º / 69º 3% WNW 9 mph 76%
Thu
Jul 16 		Partly Cloudy
View Hourly 		78º / 66º 4% WSW 19 mph 66%
3am Mostly Cloudy 71º 1% NW 9 mph 76%
4am Partly Cloudy 71º 1% WNW 8 mph 78%
5am Partly Cloudy 70º 2% WNW 8 mph 78%
6am Partly Cloudy 70º 2% WNW 7 mph 76%
7am Partly Cloudy 72º 2% W 8 mph 75%
8am Partly Cloudy 74º 1% W 8 mph 70%
9am Mostly Sunny 76º 1% W 11 mph 65%
10am Mostly Sunny 77º 3% WSW 12 mph 63%
11am Mostly Sunny 78º 3% WSW 14 mph 62%
12pm Mostly Sunny 78º 3% WSW 15 mph 63%
1pm Mostly Sunny 78º 3% WSW 17 mph 62%
2pm Sunny 78º 3% WSW 18 mph 62%
3pm Mostly Sunny 77º 3% WSW 18 mph 64%
4pm Mostly Sunny 77º 3% WSW 18 mph 66%
5pm Partly Cloudy 76º 4% WSW 19 mph 68%
6pm Partly Cloudy 75º 4% WSW 19 mph 70%
7pm Mostly Sunny 74º 3% WSW 19 mph 69%
8pm Partly Cloudy 73º 4% WSW 18 mph 73%
9pm Partly Cloudy 71º 5% WNW 15 mph 77%
10pm Mostly Clear 70º 7% NW 13 mph 80%
11pm Mostly Clear 68º 11% NW 9 mph 80%
Fri
Jul 17 		Mostly Sunny
View Hourly 		75º / 66º 2% W 10 mph 58%
12am Clear 68º 6% NNW 6 mph 80%
1am Clear 67º 6% NNW 6 mph 80%
2am Clear 68º 4% NNE 6 mph 79%
3am Clear 67º 4% NNW 6 mph 78%
4am Clear 68º 3% NNW 7 mph 75%
5am Mostly Clear 68º 2% NNW 6 mph 71%
6am Sunny 69º 1% NW 6 mph 65%
7am Mostly Sunny 71º 1% NW 8 mph 64%
8am Mostly Sunny 71º 1% NW 9 mph 61%
9am Partly Cloudy 72º 1% NW 9 mph 58%
10am Partly Cloudy 73º 1% NW 10 mph 55%
11am Partly Cloudy 74º 1% NW 9 mph 53%
12pm Sunny 75º 1% WNW 8 mph 52%
1pm Mostly Sunny 75º 1% W 7 mph 51%
2pm Sunny 75º 1% WSW 6 mph 53%
3pm Sunny 75º 1% WSW 8 mph 57%
4pm Mostly Sunny 75º 1% SW 9 mph 58%
5pm Sunny 74º 1% SW 9 mph 61%
6pm Mostly Sunny 73º 2% SW 9 mph 67%
7pm Sunny 71º 3% SSW 9 mph 71%
8pm Sunny 70º 4% SSW 9 mph 74%
9pm Mostly Clear 68º 5% SW 8 mph 80%
10pm Partly Cloudy 68º 5% SW 8 mph 81%
11pm Partly Cloudy 67º 5% SW 7 mph 83%
Sat
Jul 18 		PM Showers
View Hourly 		75º / 69º 55% SSW 20 mph 75%
12am Partly Cloudy 67º 6% SW 8 mph 85%
1am Partly Cloudy 67º 6% SW 8 mph 86%
2am Partly Cloudy 67º 6% SW 7 mph 87%
Sun
Jul 19 		AM Clouds/PM Sun 77º / 66º 24% W 19 mph 78%
Mon
Jul 20 		Sunny 75º / 66º 3% E 8 mph 64%
Tue
Jul 21 		Rain 78º / 69º 71% SSE 15 mph 77%
Wed
Jul 22 		Showers/Wind 77º / 66º 63% SSW 21 mph 77%

Weather Radar for Nantucket, MA See Radar

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* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Nantucket, MA

Thursday
High : 73ºF
W wind 5 to 8 kt becoming SW 10 to 15 kt in the afternoon. Winds could gust as high as 22 kt. Patchy smoke. Seas 2 to 3 ft.
Thursday Night
Low : 71ºF
WSW wind 11 to 14 kt becoming NNW 6 to 9 kt in the evening. Winds could gust as high as 21 kt. Areas of smoke before 3am. Seas 2 to 3 ft.
Friday
High : 73ºF
NNW wind around 8 kt becoming SW in the afternoon. Sunny. Seas around 2 ft.
Friday Night
Low : 69ºF
SW wind around 8 kt. Increasing clouds. Seas around 2 ft.
Saturday
High : 72ºF
SSW wind 8 to 11 kt increasing to 11 to 14 kt in the afternoon. A slight chance of showers after 4pm. Seas 2 to 3 ft.
Saturday Night
Low : 66ºF
SW wind 15 to 19 kt, with gusts as high as 25 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Seas 3 ft building to 5 ft.
Sunday
High : 75ºF
WSW wind 12 to 17 kt, with gusts as high as 23 kt. A chance of showers before 10am. Seas 4 to 5 ft.
Sunday Night
Low : 69ºF
NW wind around 8 kt. Partly cloudy. Seas around 4 ft.
Monday
High : 72ºF
NW wind around 8 kt becoming S in the afternoon. Sunny. Seas around 3 ft.

NOAA Buoy Data Near Nantucket, MA See Map

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    Wind Speed Forecast for Nantucket, MA

    ThursdayFridaySaturday
    Wind Speed (MPH) 981418199689897
    7am11am3pm7pm11pm3am7am11am3pm7pm11pm3am
    MPH 981418199689897
    DIR NWWWSWWSWWSWNWNNWNWNWWSWSSWSW

    Current Weather Conditions In Nantucket, MA

    As Of: 37 minutes ago

    • 71ºF
    • 71ºF
    • 9mph
    • 0º (NW)
    • 9mph
    • Mostly Cloudy
    • 10mi
    • 29.84"
    • 76%
    • 0ºF

    The weather right now in Nantucket, MA is Mostly Cloudy. The current temperature is 71°F, and the expected high and low for today, Thursday, July 16, 2026, are -° high temperature and 69°F low temperature. The wind is currently blowing at 9 miles per hour, and coming from the Northwest. The wind is gusting to 9 mph. With the wind and the atmosphere the temperature feels like 71° Fahrenheit. Expected precipitation is 1 percent, with current humidity at 76 percent, and air pressure at 29.84 in. Visibility is 10 nautical miles. There are 2 current weather alert(s).

    Weather Alerts
    Small Craft Advisory - 2:37am Thu Jul 16 2026

    ...SMALL CRAFT ADVISORY IN EFFECT FROM NOON TODAY TO 2 AM EDT FRIDAY...

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

    WHERE: In Massachusetts coastal waters, Nantucket Sound,
    Vineyard Sound and Buzzards Bay. In Rhode Island coastal
    waters, Rhode Island Sound and Block Island Sound.

    WHEN: From noon today to 2 AM EDT Friday.

    IMPACTS: Conditions will be hazardous to small craft.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

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

    &&

    Air Quality Alert - 4:34pm Wed Jul 15 2026

    ...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT EDT THURSDAY NIGHT...

    The Massachusetts Department of Environmental Protection has issued
    an Air Quality Alert for Fine Particulates, until midnight EDT
    Thursday night.

    An Air Quality Alert day means that Fine Particulates concentrations
    within the region may approach or exceed levels that are Unhealthy
    for Sensitive Groups.

    Air is unhealthy for sensitive children and adults, such as those
    with asthma, lung or heart disease, and older adults. Sensitive
    children and adults should limit prolonged outdoor activity.

    For additional information, please visit the Massachusetts
    Department of Environmental Protection website at:
    https://mass.gov/dep/massair/forecast