High Surf Advisory — Eastern Essex, MA, Suffolk, MA, Eastern Norfolk, MA, Eastern Plymouth, MA, Barnstable, MA, Dukes, MA, Nantucket, MA 7:00 PM Coastal Flood Advisory — Eastern Essex, MA, Suffolk, MA, Eastern Norfolk, MA, Eastern Plymouth, MA, Barnstable, MA, Dukes, MA, Nantucket, MA 11:00 PM Flood Watch 1:00 AM

Dukes County, Massachusetts, United States

Last updated: 5:49 PM CDT  ·  Refresh
18°C
Feels like 16°
Overcast
▲ 19°  /  ▼ 16°
Wind
14 mph ENE
Humidity
96%
Dew Point
18°
Pressure
29.74 inHg
Visibility
7 mi
UV Index
0.0
Cloud Cover
88%
Sunrise
6:35 AM
Sunset
6:31 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Dukes County is currently overcast at 18°C. Precipitation is likely — peak probability 78% around 11 PM. Sunrise: 6:35AM · Sunset: 6:31PM.

Alerts

High Surf Advisory
Eastern Essex, MA, Suffolk, MA, Eastern Norfolk, MA, Eastern Plymouth, MA, Barnstable, MA, Dukes, MA, Nantucket, MA
Expires 7:00 PM
Coastal Flood Advisory
Eastern Essex, MA, Suffolk, MA, Eastern Norfolk, MA, Eastern Plymouth, MA, Barnstable, MA, Dukes, MA, Nantucket, MA
Expires 11:00 PM
Flood Watch
Expires 1:00 AM
36 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
18°
52%
7 PM
17°
57%
8 PM
17°
51%
9 PM
17°
62%
10 PM
17°
61%
11 PM
17°
78%
12 AM
16°
52%
1 AM
16°
67%
2 AM
16°
67%
3 AM
16°
63%
4 AM
17°
64%
5 AM
17°
70%
6 AM
17°
70%
7 AM
17°
61%
8 AM
18°
49%
9 AM
18°
55%
10 AM
18°
51%
11 AM
18°
52%
12 PM
18°
52%
1 PM
19°
52%
2 PM
19°
48%
3 PM
18°
50%
4 PM
18°
50%
5 PM
18°
56%
7-Day Forecast
Tonight
19° 16°
Fog with a 62% chance of rain.
Mon
19° 16°
Rain, 70% chance.
Tue
17° 14°
Overcast with a 43% chance of rain.
Wed
20° 16°
Partly Cloudy.
Thu
19° 16°
Fog.
Fri
19° 17°
Clear.
Sat
18° 13°
Rain, 29% chance.
TimeTempConditionsPrecipWindHumidity
Now 18° Overcast 52% 14 mph ENE 96%
7 PM 17° Fog 57% 15 mph ENE 98%
8 PM 17° Fog 51% 16 mph ENE 98%
9 PM 17° Fog 62% 16 mph ENE 98%
10 PM 17° Fog 61% 15 mph ENE 98%
11 PM 17° Fog 78% 15 mph ENE 98%
12 AM 16° Fog 52% 15 mph ENE 98%
1 AM 16° Fog 67% 14 mph ENE 98%
2 AM 16° Fog 67% 14 mph ENE 98%
3 AM 16° Fog 63% 13 mph ENE 98%
4 AM 17° Rain 64% 12 mph ENE 98%
5 AM 17° Fog 70% 13 mph ENE 98%
6 AM 17° Rain 70% 12 mph E 98%
7 AM 17° Thunderstorm 61% 11 mph E 98%
8 AM 18° Rain 49% 10 mph E 97%
9 AM 18° Drizzle 55% 10 mph E 96%
10 AM 18° Overcast 51% 10 mph ESE 96%
11 AM 18° Overcast 52% 9 mph ESE 96%
12 PM 18° Haze 52% 8 mph ESE 95%
1 PM 19° Haze 52% 8 mph SE 94%
2 PM 19° Haze 48% 8 mph SE 95%
3 PM 18° Haze 50% 8 mph SE 96%
4 PM 18° Haze 50% 7 mph SE 97%
5 PM 18° Haze 56% 6 mph SE 97%
15-Day Forecast
Today
9/27
Fog
62%
16°
19°
Mon
9/28
Rain
70%
16°
19°
Tue
9/29
Overcast
43%
14°
17°
Wed
9/30
Partly Cloudy
15%
16°
20°
Thu
10/1
Fog
3%
16°
19°
Fri
10/2
Clear
17%
17°
19°
Sat
10/3
Rain
29%
13°
18°
Sun
10/4
Clear
60%
12°
16°
Mon
10/5
Rain
90%
12°
16°
Tue
10/6
Drizzle
60%
13°
16°
Wed
10/7
Drizzle
60%
13°
15°
Thu
10/8
Drizzle
60%
13°
16°
Fri
10/9
Drizzle
60%
13°
16°
Sat
10/10
Drizzle
60%
13°
15°
Sun
10/11
Clear
60%
12°
16°
36
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
36 AQI 6.5 µg/m³
O3
Ground-level ozone
Dominant
36 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 36 Good 36 36
Tue 33 Good 33 29
Wed 26 Good 25 26
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.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Sun Sep 27, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE104 J/kg
MUCAPE466 J/kg
SBCIN—
MLCIN-12 J/kg
Lifted Index2.2
Kinematics
0–6 km Shear24 kt
0–1 km Shear16 kt
Eff. Shear11 kt
0–1 km SRH86
0–3 km SRH93
Eff. SRH37
Storm Motion159° @ 15 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index31.0
Thermo & Levels
PWAT1.54 in
0–3 km LR4.6 °C/km
700–500 LR5.6 °C/km
Total Totals44.6
LCL1000 hPa
LFC—
EL—
Freezing Lvl12,434 ft