Flash Flood Warning — Bristol County, MA, Plymouth County, MA, Newport County, RI 5:45 PM Wind Advisory — Central Middlesex County, MA, Western Essex, MA, Southern Worcester, MA, Western Norfolk, MA, Southeast Middlesex, MA, Northern Bristol, MA, Western Plymouth, MA, Northwest Providence, RI 11:00 AM Flood Watch 1:00 AM

Plymouth County, Massachusetts, United States

Last updated: 4:44 PM CDT  ·  Refresh
14°C
Feels like 9°
Fog
▲ 16°  /  ▼ 13°
Wind
20 mph NNE
Humidity
94%
Dew Point
13°
Pressure
29.68 inHg
Visibility
0 mi
UV Index
0.8
Cloud Cover
98%
Sunrise
6:34 AM
Sunset
6:33 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Plymouth County is currently fog at 14°C. Precipitation is likely — peak probability 90% around 5 PM. Sunrise: 6:34AM · Sunset: 6:33PM.

Alerts

Flash Flood Warning
Bristol County, MA, Plymouth County, MA, Newport County, RI
Expires 5:45 PM
Wind Advisory
Central Middlesex County, MA, Western Essex, MA, Southern Worcester, MA, Western Norfolk, MA, Southeast Middlesex, MA, Northern Bristol, MA, Western Plymouth, MA, Northwest Providence, RI
Expires 11:00 AM
Flood Watch
Expires 1:00 AM
36 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
14°
90%
6 PM
15°
90%
7 PM
15°
90%
8 PM
16°
85%
9 PM
16°
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
17°
90%
5 AM
16°
90%
6 AM
16°
90%
7 AM
16°
90%
8 AM
17°
86%
9 AM
17°
90%
10 AM
17°
90%
11 AM
17°
90%
12 PM
18°
90%
1 PM
19°
79%
2 PM
19°
79%
3 PM
19°
79%
4 PM
19°
80%
7-Day Forecast
Today
16° 13°
Fog with a 90% chance of rain.
Sun
19° 15°
Overcast with a 90% chance of rain.
Mon
18° 15°
Overcast with a 90% chance of rain.
Tue
17° 13°
Overcast with a 64% chance of rain.
Wed
19° 13°
Clear.
Thu
24° 13°
Drizzle, 43% chance.
Fri
22° 11°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 14° Fog 90% 20 mph NNE 93%
6 PM 15° Rain 90% 21 mph NNE 95%
7 PM 15° Heavy Rain 90% 20 mph NNE 96%
8 PM 16° Heavy Rain 85% 20 mph NNE 96%
9 PM 16° Heavy Rain 84% 21 mph NNE 96%
10 PM 16° Heavy Rain 82% 21 mph NNE 97%
11 PM 16° Heavy Rain 81% 22 mph NE 97%
12 AM 16° Heavy Rain 81% 22 mph NE 97%
1 AM 16° Heavy Rain 81% 22 mph NE 97%
2 AM 16° Heavy Rain 90% 22 mph NE 97%
3 AM 17° Heavy Rain 90% 22 mph NE 97%
4 AM 17° Heavy Rain 90% 22 mph NE 98%
5 AM 16° Heavy Rain 90% 21 mph NE 97%
6 AM 16° Heavy Rain 90% 20 mph NE 97%
7 AM 16° Heavy Rain 90% 19 mph ENE 98%
8 AM 17° Heavy Rain 86% 18 mph ENE 98%
9 AM 17° Heavy Rain 90% 17 mph ENE 98%
10 AM 17° Overcast 90% 17 mph ENE 97%
11 AM 17° Overcast 90% 16 mph ENE 97%
12 PM 18° Overcast 90% 15 mph ENE 96%
1 PM 19° Overcast 79% 14 mph ENE 95%
2 PM 19° Overcast 79% 13 mph ENE 94%
3 PM 19° Heavy Rain 79% 13 mph ENE 94%
4 PM 19° Heavy Rain 80% 13 mph ENE 93%
15-Day Forecast
Today
9/26
Fog
90%
13°
16°
Sun
9/27
Overcast
90%
15°
19°
Mon
9/28
Overcast
90%
15°
18°
Tue
9/29
Overcast
64%
13°
17°
Wed
9/30
Clear
3%
13°
19°
Thu
10/1
Drizzle
43%
13°
24°
Fri
10/2
Clear
17%
11°
22°
Sat
10/3
Drizzle
44%
11°
18°
Sun
10/4
Rain
68%
13°
20°
Mon
10/5
Drizzle
51%
13°
23°
Tue
10/6
Drizzle
60%
11°
23°
Wed
10/7
Drizzle
60%
10°
17°
Thu
10/8
Drizzle
60%
9°
16°
Fri
10/9
Clear
25%
9°
16°
Sat
10/10
Drizzle
60%
10°
17°
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
18 AQI 3.3 µg/m³
O3
Ground-level ozone
Dominant
36 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sun 36 Good 36 18
Mon 37 Good 37 36
Tue 34 Good 34 29
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 LCLLFCEL0°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
MLCAPE17 J/kg
MUCAPE36 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index9.7
Kinematics
0–6 km Shear33 kt
0–1 km Shear30 kt
Eff. Shear—
0–1 km SRH148
0–3 km SRH328
Eff. SRH—
Storm Motion98° @ 14 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index34.1
Thermo & Levels
PWAT1.76 in
0–3 km LR2.9 °C/km
700–500 LR5.9 °C/km
Total Totals44.9
LCL990 hPa
LFC1005 hPa
EL1005 hPa
Freezing Lvl13,028 ft