Areal Flood Warning — Bristol County, MA, Norfolk County, MA, Plymouth County, MA, Suffolk County, MA 6:30 PM Gale Warning — Boston Harbor, AN 8:00 PM

Suffolk County, Massachusetts, United States

Last updated: 4:54 PM CDT  ·  Refresh
16°C
Feels like 10°
Overcast
▲ 16°  /  ▼ 14°
Wind
23 mph NE
Humidity
97%
Dew Point
15°
Pressure
29.82 inHg
Visibility
6 mi
UV Index
0.8
Cloud Cover
95%
Sunrise
6:36 AM
Sunset
6:32 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Suffolk County is currently overcast at 16°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
Gale Warning
Boston Harbor, AN
Expires 8:00 PM
37 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
16°
77%
6 PM
16°
80%
7 PM
16°
78%
8 PM
15°
77%
9 PM
15°
69%
10 PM
15°
77%
11 PM
14°
67%
12 AM
14°
81%
1 AM
14°
81%
2 AM
14°
81%
3 AM
14°
81%
4 AM
14°
81%
5 AM
14°
81%
6 AM
14°
81%
7 AM
14°
81%
8 AM
14°
81%
9 AM
14°
90%
10 AM
14°
90%
11 AM
15°
90%
12 PM
15°
90%
1 PM
16°
90%
2 PM
16°
90%
3 PM
16°
90%
4 PM
15°
86%
7-Day Forecast
Today
16° 14°
Overcast with a 77% chance of rain.
Mon
16° 13°
Rain, 90% chance.
Tue
17° 13°
Overcast with a 38% chance of rain.
Wed
20° 14°
Partly Cloudy.
Thu
25° 15°
Clear.
Fri
28° 15°
Rain, 29% chance.
Sat
21° 11°
Clear with a 28% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 16° Overcast 77% 23 mph NE 97%
6 PM 16° Fog 80% 21 mph NE 97%
7 PM 16° Fog 78% 21 mph NE 97%
8 PM 15° Fog 77% 20 mph NE 97%
9 PM 15° Fog 69% 20 mph NE 97%
10 PM 15° Overcast 77% 20 mph NE 97%
11 PM 14° Overcast 67% 20 mph NE 97%
12 AM 14° Overcast 81% 20 mph NNE 97%
1 AM 14° Heavy Rain 81% 21 mph NNE 97%
2 AM 14° Overcast 81% 21 mph NNE 97%
3 AM 14° Overcast 81% 20 mph NNE 97%
4 AM 14° Haze 81% 22 mph NNE 97%
5 AM 14° Heavy Rain 81% 22 mph NNE 97%
6 AM 14° Rain 81% 23 mph NNE 97%
7 AM 14° Rain 81% 23 mph NNE 97%
8 AM 14° Rain 81% 22 mph NNE 97%
9 AM 14° Rain 90% 22 mph NNE 97%
10 AM 14° Overcast 90% 21 mph NNE 96%
11 AM 15° Rain 90% 21 mph NNE 96%
12 PM 15° Overcast 90% 19 mph NNE 97%
1 PM 16° Overcast 90% 18 mph NNE 97%
2 PM 16° Overcast 90% 18 mph NNE 97%
3 PM 16° Overcast 90% 18 mph NNE 97%
4 PM 15° Overcast 86% 18 mph NNE 97%
15-Day Forecast
Today
9/27
Overcast
77%
14°
16°
Mon
9/28
Rain
90%
13°
16°
Tue
9/29
Overcast
38%
13°
17°
Wed
9/30
Partly Cloudy
3%
14°
20°
Thu
10/1
Clear
3%
15°
25°
Fri
10/2
Rain
29%
15°
28°
Sat
10/3
Clear
28%
11°
21°
Sun
10/4
Drizzle
60%
8°
17°
Mon
10/5
Rain
90%
9°
17°
Tue
10/6
Drizzle
60%
12°
19°
Wed
10/7
Drizzle
60%
10°
17°
Thu
10/8
Drizzle
60%
10°
17°
Fri
10/9
Drizzle
60%
10°
17°
Sat
10/10
Drizzle
60%
9°
17°
Sun
10/11
Drizzle
60%
9°
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 6.8 µg/m³
O3
Ground-level ozone
34 AQI 37 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 37 Good 34 37
Tue 38 Good 27 38
Wed 28 Good 18 28
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, 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
SBCAPE6 J/kg
MLCAPE20 J/kg
MUCAPE34 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index7.1
Kinematics
0–6 km Shear31 kt
0–1 km Shear25 kt
Eff. Shear—
0–1 km SRH185
0–3 km SRH187
Eff. SRH—
Storm Motion124° @ 19 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-0.7
Thermo & Levels
PWAT1.05 in
0–3 km LR3.1 °C/km
700–500 LR6.2 °C/km
Total Totals42.3
LCL1002 hPa
LFC1010 hPa
EL958 hPa
Freezing Lvl13,517 ft