Suffolk County, Massachusetts, United States

Last updated: 2:43 AM CDT  ·  Refresh
23°C
Feels like 27°
Mostly Clear
▲ 32°  /  ▼ 22°
Wind
5 mph SW
Humidity
94%
Dew Point
22°
Pressure
30.04 inHg
Visibility
8 mi
UV Index
0.0
Cloud Cover
19%
Sunrise
5:42 AM
Sunset
7:55 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Suffolk County is currently mostly clear at 24°C. Precipitation is likely — peak probability 57% around 11 PM. Atmospheric instability is elevated (CAPE up to 1288 J/kg) — isolated convective development possible. Sunrise: 5:42AM · Sunset: 7:55PM.

Alerts

No active alerts for this location.
40 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
15%
4 AM
24°
3%
5 AM
23°
6%
6 AM
23°
4%
7 AM
24°
4%
8 AM
25°
10%
9 AM
27°
23%
10 AM
28°
25%
11 AM
29°
34%
12 PM
29°
35%
1 PM
31°
35%
2 PM
31°
36%
3 PM
30°
36%
4 PM
29°
37%
5 PM
28°
37%
6 PM
28°
30%
7 PM
27°
24%
8 PM
26°
38%
9 PM
25°
48%
10 PM
24°
56%
11 PM
24°
57%
12 AM
24°
53%
1 AM
24°
51%
2 AM
24°
50%
7-Day Forecast
Today
32° 22°
Mostly Clear with a 48% chance of rain.
Sat
32° 22°
Partly Cloudy with a 66% chance of rain.
Sun
34° 22°
Mostly Clear.
Mon
32° 21°
Mostly Clear with a 37% chance of rain.
Tue
33° 22°
Drizzle, 56% chance.
Wed
31° 20°
Rain, 65% chance.
Thu
28° 19°
Drizzle, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 23° Mostly Clear 15% 5 mph SW 94%
4 AM 24° Clear 3% 6 mph WSW 93%
5 AM 23° Clear 6% 6 mph WSW 92%
6 AM 23° Clear 4% 6 mph W 91%
7 AM 24° Clear 4% 6 mph W 88%
8 AM 25° Clear 10% 6 mph W 83%
9 AM 27° Clear 23% 6 mph W 76%
10 AM 28° Clear 25% 5 mph WNW 70%
11 AM 29° Clear 34% 4 mph W 65%
12 PM 29° Clear 35% 2 mph WSW 62%
1 PM 31° Clear 35% 2 mph SW 58%
2 PM 31° Clear 36% 3 mph S 58%
3 PM 30° Mostly Clear 36% 4 mph SE 60%
4 PM 29° Mostly Clear 37% 6 mph ESE 63%
5 PM 28° Mostly Clear 37% 5 mph ESE 68%
6 PM 28° Partly Cloudy 30% 6 mph SSE 73%
7 PM 27° Partly Cloudy 24% 6 mph S 79%
8 PM 26° Partly Cloudy 38% 6 mph S 81%
9 PM 25° Partly Cloudy 48% 6 mph SSW 82%
10 PM 24° Partly Cloudy 56% 6 mph SSW 82%
11 PM 24° Partly Cloudy 57% 6 mph SSW 84%
12 AM 24° Mostly Cloudy 53% 6 mph SW 86%
1 AM 24° Haze 51% 6 mph SW 87%
2 AM 24° Mostly Cloudy 50% 6 mph SW 88%
15-Day Forecast
Today
8/7
Mostly Clear
48%
22°
32°
Sat
8/8
Partly Cloudy
66%
22°
32°
Sun
8/9
Mostly Clear
16%
22°
34°
Mon
8/10
Mostly Clear
37%
21°
32°
Tue
8/11
Drizzle
56%
22°
33°
Wed
8/12
Rain
65%
20°
31°
Thu
8/13
Drizzle
63%
19°
28°
Fri
8/14
Rain
73%
18°
28°
Sat
8/15
Partly Cloudy
35%
17°
28°
Sun
8/16
Clear
36%
17°
27°
Mon
8/17
Drizzle
60%
17°
27°
Tue
8/18
Clear
60%
17°
27°
Wed
8/19
Drizzle
60%
17°
28°
Thu
8/20
Clear
60%
18°
28°
Fri
8/21
Drizzle
60%
17°
28°
40
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
28 AQI 5.0 µg/m³
O3
Ground-level ozone
Dominant
40 AQI 43 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 40 Good 40 28
Sat 51 Moderate 51 43
Sun 54 Moderate 54 49
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 Fri Aug 7, 06:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE482 J/kg
MLCAPE936 J/kg
MUCAPE1252 J/kg
SBCIN-251 J/kg
MLCIN0 J/kg
Lifted Index-1.3
Kinematics
0–6 km Shear22 kt
0–1 km Shear8 kt
Eff. Shear19 kt
0–1 km SRH-32
0–3 km SRH-59
Eff. SRH-37
Storm Motion210° @ 24 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index32.1
Thermo & Levels
PWAT2.05 in
0–3 km LR4.3 °C/km
700–500 LR5.9 °C/km
Total Totals44.7
LCL999 hPa
LFC607 hPa
EL239 hPa
Freezing Lvl16,014 ft