Coastal Flood Warning — Eastern Essex, MA, Suffolk, MA, Eastern Norfolk, MA, Eastern Plymouth, MA, Barnstable, MA, Dukes, MA, Nantucket, MA 7:00 PM High Surf Advisory — Eastern Essex, MA, Suffolk, MA, Eastern Norfolk, MA, Eastern Plymouth, MA, Barnstable, MA, Dukes, MA, Nantucket, MA 7:00 PM

Nantucket, Massachusetts

Last updated: 3:42 AM CDT  ·  Refresh
14°C
Feels like 4°
Overcast
▲ 17°  /  ▼ 15°
Wind
37 mph NE
Humidity
93%
Dew Point
13°
Pressure
29,80 inHg
Visibility
9 mi
UV Index
0,0
Cloud Cover
87%
Sunrise
6:32 AM
Sunset
6:30 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Nantucket is currently overcast at 15°C. Precipitation is likely — peak probability 90% around 5 AM. Sunrise: 6:32AM · Sunset: 6:30PM.

Alerts

Coastal Flood Warning
Eastern Essex, MA, Suffolk, MA, Eastern Norfolk, MA, Eastern Plymouth, MA, Barnstable, MA, Dukes, MA, Nantucket, MA
Expires 7:00 PM
High Surf Advisory
Eastern Essex, MA, Suffolk, MA, Eastern Norfolk, MA, Eastern Plymouth, MA, Barnstable, MA, Dukes, MA, Nantucket, MA
Expires 7:00 PM
33 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
14°
55%
5 AM
14°
90%
6 AM
15°
84%
7 AM
15°
84%
8 AM
16°
71%
9 AM
16°
82%
10 AM
16°
81%
11 AM
16°
66%
12 PM
17°
69%
1 PM
17°
56%
2 PM
17°
56%
3 PM
17°
57%
4 PM
17°
66%
5 PM
17°
77%
6 PM
17°
81%
7 PM
17°
81%
8 PM
17°
90%
9 PM
17°
90%
10 PM
17°
90%
11 PM
17°
90%
12 AM
18°
90%
1 AM
18°
86%
2 AM
18°
80%
3 AM
18°
75%
7-Day Forecast
Today
17° 15°
Heavy Rain, 90% chance.
Sun
19° 17°
Rain, 69% chance.
Mon
18° 17°
Fog with a 60% chance of rain.
Tue
17° 15°
Overcast with a 70% chance of rain.
Wed
18° 16°
Rain, 21% chance.
Thu
18° 17°
Clear with a 29% chance of rain.
Fri
18° 17°
Drizzle, 42% chance.
TimeTempConditionsPrecipWindHumidity
Now 14° Overcast 55% 37 mph NE 93%
5 AM 14° Overcast 90% 36 mph NE 93%
6 AM 15° Heavy Rain 84% 36 mph NE 93%
7 AM 15° Heavy Rain 84% 35 mph NE 92%
8 AM 16° Overcast 71% 33 mph NE 92%
9 AM 16° Heavy Rain 82% 31 mph NE 93%
10 AM 16° Overcast 81% 29 mph NE 94%
11 AM 16° Overcast 66% 29 mph NE 95%
12 PM 17° Overcast 69% 29 mph NE 95%
1 PM 17° Overcast 56% 29 mph NE 96%
2 PM 17° Fog 56% 28 mph NE 96%
3 PM 17° Fog 57% 26 mph NE 96%
4 PM 17° Overcast 66% 25 mph NE 97%
5 PM 17° Overcast 77% 25 mph NE 97%
6 PM 17° Heavy Rain 81% 25 mph NE 97%
7 PM 17° Heavy Rain 81% 25 mph NE 97%
8 PM 17° Heavy Rain 90% 24 mph NE 97%
9 PM 17° Heavy Rain 90% 24 mph NE 97%
10 PM 17° Heavy Rain 90% 23 mph NE 97%
11 PM 17° Heavy Rain 90% 24 mph NE 97%
12 AM 18° Rain 90% 23 mph ENE 97%
1 AM 18° Rain 86% 23 mph ENE 96%
2 AM 18° Overcast 80% 23 mph ENE 96%
3 AM 18° Overcast 75% 26 mph ENE 96%
15-Day Forecast
Today
9/26
Heavy Rain
90%
15°
17°
Sun
9/27
Rain
69%
17°
19°
Mon
9/28
Fog
60%
17°
18°
Tue
9/29
Overcast
70%
15°
17°
Wed
9/30
Rain
21%
16°
18°
Thu
10/1
Clear
29%
17°
18°
Fri
10/2
Drizzle
42%
17°
18°
Sat
10/3
Clear
42%
16°
18°
Sun
10/4
Rain
90%
16°
18°
Mon
10/5
Drizzle
66%
14°
17°
Tue
10/6
Rain
90%
13°
17°
Wed
10/7
Drizzle
60%
13°
14°
Thu
10/8
Drizzle
60%
13°
14°
Fri
10/9
Drizzle
60%
13°
14°
Sat
10/10
Drizzle
60%
13°
15°
33
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
18 AQI 3.3 µg/m³
O3
Ground-level ozone
Dominant
33 AQI 36 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 33 Good 33 18
Sun 38 Good 38 27
Mon 36 Good 36 32
About the Air Quality Index
0–50 Good
51–100 Moderate
101–150 Unhealthy for Sensitive Groups
151–200 Unhealthy
201–300 Very Unhealthy
301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

Model sounding data is unavailable for this location.