Heat Advisory — Southern Fairfield, CT, Southern New Haven, CT, Southern Middlesex, CT, Southern New London, CT 7:00 PM

New Haven, Connecticut

Last updated: 3:17 AM CDT  ·  Refresh
22°C
Feels like 25°
Partly Cloudy
▲ 30°  /  ▼ 23°
Wind
3 mph WSW
Humidity
95%
Dew Point
21°
Pressure
29.91 inHg
Visibility
7 mi
UV Index
0.0
Cloud Cover
43%
Sunrise
5:53 AM
Sunset
8:00 PM
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WeatherAI™ Analysis

WeatherAI Analysis: New Haven is currently partly cloudy at 22°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1511 J/kg) — isolated convective development possible. Sunrise: 5:53AM · Sunset: 8:00PM.

67 AQI · Moderate Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
7%
5 AM
22°
3%
6 AM
22°
4%
7 AM
22°
3%
8 AM
23°
7%
9 AM
24°
16%
10 AM
26°
19%
11 AM
27°
20%
12 PM
28°
23%
1 PM
29°
30%
2 PM
29°
39%
3 PM
30°
39%
4 PM
29°
36%
5 PM
30°
42%
6 PM
29°
42%
7 PM
29°
39%
8 PM
28°
39%
9 PM
26°
43%
10 PM
26°
43%
11 PM
25°
34%
12 AM
24°
34%
1 AM
25°
20%
2 AM
24°
11%
3 AM
24°
11%
7-Day Forecast
Today
30° 23°
Partly Cloudy with a 43% chance of rain.
Sun
33° 22°
Partly Cloudy.
Mon
32° 21°
Mostly Cloudy with a 50% chance of rain.
Tue
31° 22°
Rain, 65% chance.
Wed
31° 20°
Clear with a 30% chance of rain.
Thu
30° 19°
Drizzle, 63% chance.
Fri
29° 17°
Rain, 28% chance.
TimeTempConditionsPrecipWindHumidity
Now 22° Partly Cloudy 7% 3 mph WSW 95%
5 AM 22° Clear 3% 4 mph WSW 95%
6 AM 22° Mostly Clear 4% 4 mph WSW 93%
7 AM 22° Mostly Clear 3% 5 mph WSW 92%
8 AM 23° Mostly Clear 7% 6 mph WSW 89%
9 AM 24° Mostly Clear 16% 6 mph WSW 85%
10 AM 26° Partly Cloudy 19% 6 mph SW 82%
11 AM 27° Partly Cloudy 20% 7 mph SW 78%
12 PM 28° Partly Cloudy 23% 8 mph SW 74%
1 PM 29° Partly Cloudy 30% 9 mph SW 70%
2 PM 29° Partly Cloudy 39% 9 mph SW 67%
3 PM 30° Partly Cloudy 39% 9 mph SW 66%
4 PM 29° Mostly Cloudy 36% 8 mph SW 65%
5 PM 30° Drizzle 42% 8 mph SW 66%
6 PM 29° Partly Cloudy 42% 8 mph SW 70%
7 PM 29° Partly Cloudy 39% 7 mph SW 73%
8 PM 28° Partly Cloudy 39% 6 mph SW 77%
9 PM 26° Partly Cloudy 43% 6 mph WSW 82%
10 PM 26° Mostly Clear 43% 5 mph WSW 86%
11 PM 25° Mostly Clear 34% 5 mph WSW 88%
12 AM 24° Mostly Clear 34% 4 mph WSW 89%
1 AM 25° Mostly Clear 20% 4 mph SW 90%
2 AM 24° Mostly Clear 11% 4 mph SW 90%
3 AM 24° Partly Cloudy 11% 4 mph WSW 91%
15-Day Forecast
Today
8/8
Partly Cloudy
43%
23°
30°
Sun
8/9
Partly Cloudy
12%
22°
33°
Mon
8/10
Mostly Cloudy
50%
21°
32°
Tue
8/11
Rain
65%
22°
31°
Wed
8/12
Clear
30%
20°
31°
Thu
8/13
Drizzle
63%
19°
30°
Fri
8/14
Rain
28%
17°
29°
Sat
8/15
Drizzle
43%
17°
28°
Sun
8/16
Drizzle
44%
17°
27°
Mon
8/17
Drizzle
51%
17°
26°
Tue
8/18
Drizzle
60%
17°
27°
Wed
8/19
Drizzle
60%
18°
28°
Thu
8/20
Drizzle
60%
17°
27°
Fri
8/21
Drizzle
60%
17°
27°
Sat
8/22
Drizzle
60%
17°
28°
67
Moderate
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
43 AQI 7.8 µg/m³
O3
Ground-level ozone
Dominant
67 AQI 61 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 67 Moderate 67 43
Sun 67 Moderate 67 49
Mon 56 Moderate 44 56
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 Aug 8, 07:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE77 J/kg
MLCAPE205 J/kg
MUCAPE391 J/kg
SBCIN-199 J/kg
MLCIN0 J/kg
Lifted Index-0.6
Kinematics
0–6 km Shear22 kt
0–1 km Shear19 kt
Eff. Shear11 kt
0–1 km SRH-70
0–3 km SRH-68
Eff. SRH-37
Storm Motion212° @ 22 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index31.0
Thermo & Levels
PWAT1.81 in
0–3 km LR4.6 °C/km
700–500 LR5.5 °C/km
Total Totals43.1
LCL1001 hPa
LFC717 hPa
EL458 hPa
Freezing Lvl14,633 ft