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

Barnstable County, Massachusetts, United States

Last updated: 3:50 AM CDT  ·  Refresh
14°C
Feels like 7°
Overcast
▲ 17°  /  ▼ 14°
Wind
28 mph NE
Humidity
92%
Dew Point
12°
Pressure
29.85 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
94%
Sunrise
6:32 AM
Sunset
6:31 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Barnstable County is currently overcast at 14°C. Precipitation is likely — peak probability 90% around 6 AM. Sunrise: 6:32AM · Sunset: 6:31PM.

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
32 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
14°
66%
5 AM
14°
84%
6 AM
14°
90%
7 AM
14°
90%
8 AM
15°
84%
9 AM
16°
70%
10 AM
16°
72%
11 AM
16°
81%
12 PM
16°
81%
1 PM
16°
76%
2 PM
17°
81%
3 PM
17°
73%
4 PM
17°
70%
5 PM
16°
70%
6 PM
16°
73%
7 PM
16°
81%
8 PM
17°
90%
9 PM
16°
90%
10 PM
17°
90%
11 PM
17°
90%
12 AM
17°
90%
1 AM
17°
90%
2 AM
17°
90%
3 AM
18°
90%
7-Day Forecast
Today
17° 14°
Heavy Rain, 90% chance.
Sun
20° 16°
Overcast with a 90% chance of rain.
Mon
19° 17°
Overcast with a 80% chance of rain.
Tue
18° 15°
Overcast with a 76% chance of rain.
Wed
19° 16°
Rain, 29% chance.
Thu
21° 17°
Clear with a 29% chance of rain.
Fri
20° 17°
Drizzle, 42% chance.
TimeTempConditionsPrecipWindHumidity
Now 14° Overcast 66% 28 mph NE 92%
5 AM 14° Rain 84% 29 mph NE 91%
6 AM 14° Overcast 90% 29 mph NE 91%
7 AM 14° Heavy Rain 90% 28 mph NE 91%
8 AM 15° Overcast 84% 26 mph NE 91%
9 AM 16° Heavy Rain 70% 25 mph NE 92%
10 AM 16° Heavy Rain 72% 25 mph NE 94%
11 AM 16° Heavy Rain 81% 25 mph NE 95%
12 PM 16° Overcast 81% 26 mph NE 95%
1 PM 16° Overcast 76% 28 mph NE 95%
2 PM 17° Overcast 81% 27 mph NE 95%
3 PM 17° Heavy Rain 73% 25 mph NE 95%
4 PM 17° Heavy Rain 70% 24 mph NE 95%
5 PM 16° Heavy Rain 70% 24 mph NE 96%
6 PM 16° Heavy Rain 73% 25 mph NE 96%
7 PM 16° Heavy Rain 81% 26 mph NE 97%
8 PM 17° Heavy Rain 90% 26 mph NE 97%
9 PM 16° Thunderstorm 90% 26 mph NE 97%
10 PM 17° Thunderstorm 90% 26 mph NE 97%
11 PM 17° Heavy Rain 90% 26 mph NE 97%
12 AM 17° Heavy Rain 90% 24 mph NE 97%
1 AM 17° Heavy Rain 90% 24 mph NE 97%
2 AM 17° Overcast 90% 23 mph NE 97%
3 AM 18° Overcast 90% 24 mph ENE 97%
15-Day Forecast
Today
9/26
Heavy Rain
90%
14°
17°
Sun
9/27
Overcast
90%
16°
20°
Mon
9/28
Overcast
80%
17°
19°
Tue
9/29
Overcast
76%
15°
18°
Wed
9/30
Rain
29%
16°
19°
Thu
10/1
Clear
29%
17°
21°
Fri
10/2
Drizzle
42%
17°
20°
Sat
10/3
Clear
43%
16°
21°
Sun
10/4
Drizzle
66%
16°
19°
Mon
10/5
Drizzle
66%
14°
20°
Tue
10/6
Rain
90%
13°
19°
Wed
10/7
Drizzle
60%
12°
16°
Thu
10/8
Drizzle
60%
12°
15°
Fri
10/9
Drizzle
60%
12°
15°
Sat
10/10
Drizzle
60%
13°
16°
32
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
14 AQI 2.6 µg/m³
O3
Ground-level ozone
Dominant
32 AQI 35 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 32 Good 32 14
Sun 36 Good 36 20
Mon 36 Good 36 34
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.