Flash Flood Warning — Bristol County, MA, Plymouth County, MA, Newport County, RI 5:45 PM High Wind Warning — Eastern Essex, MA, Suffolk, MA, Eastern Norfolk, MA, Eastern Plymouth, MA, Southern Bristol, MA, Southern Plymouth, MA, Barnstable, MA, Dukes, MA, Nantucket, MA, Bristol, RI, Washington, RI, Newport, RI, Block Island, RI 7:00 AM Coastal Flood Advisory — Southern Bristol, MA, Southern Plymouth, MA, Southeast Providence, RI, Eastern Kent, RI, Bristol, RI, Washington, RI, Newport, RI, Block Island, RI 7:00 PM Flood Watch 1:00 AM

Bristol County, Massachusetts, United States

Last updated: 4:59 PM CDT  ·  Refresh
14°C
Feels like 9°
Haze
▲ 17°  /  ▼ 13°
Wind
18 mph NNE
Humidity
94%
Dew Point
13°
Pressure
29.64 inHg
Visibility
1 mi
UV Index
0.6
Cloud Cover
99%
Sunrise
6:36 AM
Sunset
6:34 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Bristol County is currently haze at 14°C. Precipitation is likely — peak probability 90% around 5 PM. Sunrise: 6:36AM · Sunset: 6:34PM.

Alerts

Flash Flood Warning
Bristol County, MA, Plymouth County, MA, Newport County, RI
Expires 5:45 PM
High Wind Warning
Eastern Essex, MA, Suffolk, MA, Eastern Norfolk, MA, Eastern Plymouth, MA, Southern Bristol, MA, Southern Plymouth, MA, Barnstable, MA, Dukes, MA, Nantucket, MA, Bristol, RI, Washington, RI, Newport, RI, Block Island, RI
Expires 7:00 AM
Coastal Flood Advisory
Southern Bristol, MA, Southern Plymouth, MA, Southeast Providence, RI, Eastern Kent, RI, Bristol, RI, Washington, RI, Newport, RI, Block Island, RI
Expires 7:00 PM
Flood Watch
Expires 1:00 AM
34 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
14°
90%
6 PM
14°
90%
7 PM
15°
90%
8 PM
15°
85%
9 PM
15°
84%
10 PM
16°
82%
11 PM
16°
81%
12 AM
16°
81%
1 AM
16°
81%
2 AM
16°
90%
3 AM
17°
90%
4 AM
16°
90%
5 AM
16°
90%
6 AM
16°
86%
7 AM
17°
85%
8 AM
17°
90%
9 AM
17°
90%
10 AM
18°
90%
11 AM
18°
90%
12 PM
20°
79%
1 PM
21°
79%
2 PM
20°
79%
3 PM
20°
79%
4 PM
19°
80%
7-Day Forecast
Today
17° 13°
Haze with a 90% chance of rain.
Sun
21° 15°
Heavy Rain, 90% chance.
Mon
19° 14°
Overcast with a 90% chance of rain.
Tue
17° 12°
Overcast with a 44% chance of rain.
Wed
19° 12°
Clear.
Thu
24° 12°
Drizzle, 43% chance.
Fri
22° 11°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 14° Haze 90% 18 mph NNE 94%
6 PM 14° Rain 90% 18 mph NNE 95%
7 PM 15° Overcast 90% 18 mph NNE 95%
8 PM 15° Heavy Rain 85% 18 mph NNE 96%
9 PM 15° Heavy Rain 84% 18 mph NNE 96%
10 PM 16° Heavy Rain 82% 18 mph NNE 96%
11 PM 16° Heavy Rain 81% 18 mph NNE 96%
12 AM 16° Heavy Rain 81% 18 mph NNE 96%
1 AM 16° Heavy Rain 81% 19 mph NNE 96%
2 AM 16° Heavy Rain 90% 18 mph NE 97%
3 AM 17° Heavy Rain 90% 19 mph NE 97%
4 AM 16° Heavy Rain 90% 18 mph NE 97%
5 AM 16° Heavy Rain 90% 16 mph NE 96%
6 AM 16° Heavy Rain 86% 15 mph NE 96%
7 AM 17° Heavy Rain 85% 14 mph ENE 96%
8 AM 17° Heavy Rain 90% 13 mph ENE 97%
9 AM 17° Heavy Rain 90% 12 mph ENE 97%
10 AM 18° Heavy Rain 90% 12 mph ENE 96%
11 AM 18° Overcast 90% 11 mph ENE 95%
12 PM 20° Overcast 79% 11 mph ENE 93%
1 PM 21° Overcast 79% 10 mph ENE 91%
2 PM 20° Overcast 79% 10 mph ENE 92%
3 PM 20° Rain 79% 11 mph ENE 92%
4 PM 19° Rain 80% 11 mph ENE 93%
15-Day Forecast
Today
9/26
Haze
90%
13°
17°
Sun
9/27
Heavy Rain
90%
15°
21°
Mon
9/28
Overcast
90%
14°
19°
Tue
9/29
Overcast
44%
12°
17°
Wed
9/30
Clear
9%
12°
19°
Thu
10/1
Drizzle
43%
12°
24°
Fri
10/2
Clear
17%
11°
22°
Sat
10/3
Drizzle
44%
10°
18°
Sun
10/4
Drizzle
44%
13°
21°
Mon
10/5
Drizzle
51%
12°
24°
Tue
10/6
Drizzle
60%
10°
22°
Wed
10/7
Drizzle
60%
9°
16°
Thu
10/8
Drizzle
60%
8°
16°
Fri
10/9
Clear
25%
8°
16°
Sat
10/10
Drizzle
60%
9°
17°
34
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
25 AQI 4.6 µg/m³
O3
Ground-level ozone
Dominant
34 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sun 34 Good 34 25
Mon 39 Good 35 39
Tue 33 Good 30 33
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 Sat Sep 26, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE14 J/kg
MUCAPE34 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index10.8
Kinematics
0–6 km Shear34 kt
0–1 km Shear34 kt
Eff. Shear—
0–1 km SRH201
0–3 km SRH387
Eff. SRH—
Storm Motion110° @ 15 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index35.4
Thermo & Levels
PWAT1.78 in
0–3 km LR2.8 °C/km
700–500 LR5.7 °C/km
Total Totals45.5
LCL990 hPa
LFC—
EL—
Freezing Lvl12,877 ft