Areal Flood Warning — Bristol County, MA, Norfolk County, MA, Plymouth County, MA, Suffolk County, MA 6:30 PM Coastal Flood Statement — Southern Bristol, MA, Southern Plymouth, MA, Southeast Providence, RI, Eastern Kent, RI, Bristol, RI, Washington, RI, Newport, RI, Block Island, RI 11:00 PM Flood Watch 1:00 AM Flood Warning — Bristol County, MA, Plymouth County, MA 10:00 PM

Dartmouth, Massachusetts

Last updated: 5:22 PM CDT  ·  Refresh
18°C
Feels like 18°
Overcast
▲ 18°  /  ▼ 16°
Wind
10 mph NE
Humidity
97%
Dew Point
18°
Pressure
29.68 inHg
Visibility
10 mi
UV Index
0.3
Cloud Cover
100%
Sunrise
6:36 AM
Sunset
6:32 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Dartmouth is currently overcast at 18°C. Precipitation is likely — peak probability 90% around 9 AM. Sunrise: 6:36AM · Sunset: 6:32PM.

Alerts

Areal Flood Warning
Bristol County, MA, Norfolk County, MA, Plymouth County, MA, Suffolk County, MA
Expires 6:30 PM
Coastal Flood Statement
Southern Bristol, MA, Southern Plymouth, MA, Southeast Providence, RI, Eastern Kent, RI, Bristol, RI, Washington, RI, Newport, RI, Block Island, RI
Expires 11:00 PM
Flood Watch
Expires 1:00 AM
Flood Warning
Bristol County, MA, Plymouth County, MA
Expires 10:00 PM
37 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
18°
56%
7 PM
18°
49%
8 PM
18°
78%
9 PM
18°
72%
10 PM
18°
84%
11 PM
18°
68%
12 AM
17°
67%
1 AM
17°
67%
2 AM
17°
67%
3 AM
17°
67%
4 AM
17°
68%
5 AM
16°
81%
6 AM
16°
81%
7 AM
16°
81%
8 AM
16°
81%
9 AM
17°
90%
10 AM
17°
78%
11 AM
17°
79%
12 PM
17°
79%
1 PM
18°
79%
2 PM
18°
65%
3 PM
18°
65%
4 PM
18°
55%
5 PM
17°
62%
7-Day Forecast
Tonight
18° 16°
Overcast with a 72% chance of rain.
Mon
19° 14°
Overcast with a 90% chance of rain.
Tue
18° 12°
Mostly Cloudy with a 66% chance of rain.
Wed
21° 15°
Partly Cloudy.
Thu
24° 14°
Clear.
Fri
26° 16°
Clear.
Sat
21° 11°
Clear with a 29% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 18° Overcast 56% 10 mph NE 97%
7 PM 18° Fog 49% 10 mph NE 98%
8 PM 18° Fog 78% 11 mph NE 98%
9 PM 18° Fog 72% 11 mph NE 98%
10 PM 18° Fog 84% 11 mph NE 98%
11 PM 18° Fog 68% 11 mph NE 98%
12 AM 17° Fog 67% 11 mph NE 98%
1 AM 17° Fog 67% 11 mph NE 99%
2 AM 17° Fog 67% 11 mph NE 99%
3 AM 17° Fog 67% 10 mph NE 99%
4 AM 17° Rain 68% 10 mph NE 98%
5 AM 16° Rain 81% 9 mph NE 98%
6 AM 16° Rain 81% 9 mph NE 98%
7 AM 16° Rain 81% 8 mph NE 98%
8 AM 16° Rain 81% 8 mph NE 98%
9 AM 17° Overcast 90% 7 mph ENE 98%
10 AM 17° Overcast 78% 7 mph ENE 97%
11 AM 17° Overcast 79% 7 mph ENE 97%
12 PM 17° Rain 79% 6 mph NE 97%
1 PM 18° Rain 79% 7 mph ENE 97%
2 PM 18° Rain 65% 7 mph ENE 97%
3 PM 18° Rain 65% 7 mph ENE 97%
4 PM 18° Rain 55% 6 mph ENE 98%
5 PM 17° Rain 62% 6 mph NE 98%
15-Day Forecast
Today
9/27
Overcast
72%
16°
18°
Mon
9/28
Overcast
90%
14°
19°
Tue
9/29
Mostly Cloudy
66%
12°
18°
Wed
9/30
Partly Cloudy
15%
15°
21°
Thu
10/1
Clear
13%
14°
24°
Fri
10/2
Clear
17%
16°
26°
Sat
10/3
Clear
29%
11°
21°
Sun
10/4
Clear
60%
9°
18°
Mon
10/5
Drizzle
90%
10°
18°
Tue
10/6
Drizzle
60%
12°
18°
Wed
10/7
Drizzle
60%
11°
16°
Thu
10/8
Clear
60%
11°
17°
Fri
10/9
Drizzle
60%
11°
17°
Sat
10/10
Drizzle
60%
11°
17°
Sun
10/11
Clear
60%
11°
17°
37
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

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

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
37 AQI 6.6 µg/m³
O3
Ground-level ozone
35 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 37 Good 35 37
Tue 34 Good 30 34
Wed 33 Good 20 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 LCLLFCEL0°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
MLCAPE22 J/kg
MUCAPE171 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index1.8
Kinematics
0–6 km Shear28 kt
0–1 km Shear23 kt
Eff. Shear15 kt
0–1 km SRH179
0–3 km SRH177
Eff. SRH52
Storm Motion149° @ 18 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index33.6
Thermo & Levels
PWAT1.55 in
0–3 km LR4.8 °C/km
700–500 LR5.5 °C/km
Total Totals46.1
LCL996 hPa
LFC1005 hPa
EL994 hPa
Freezing Lvl12,201 ft