Flash Flood Warning — Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Bucks County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA 2:30 AM Flash Flood Warning — Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA 2:30 AM Extreme Heat Warning — Pointe Coupee, LA, West Feliciana, LA, East Feliciana, LA, St. Helena, LA, Washington, LA, Iberville, LA, West Baton Rouge, LA, East Baton Rouge, LA, Assumption, LA, St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, LA, Northern Tangipahoa, LA, Southeast St. Tammany, LA, Western Orleans, LA, Eastern Orleans, LA, Northern St. Tammany, LA, Southwestern St. Tammany, LA, Central Tangipahoa, LA, Lower Tangipahoa, LA, Northern Livingston, LA, Southern Livingston, LA, Western Ascension, LA, Eastern Ascension, LA, Upper Jefferson, LA, Upper Plaquemines, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Central Jefferson, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS 8:00 PM

Philadelphia, Pennsylvania

Last updated: 10:53 PM CDT  ·  Refresh
22°C
Feels like 23°
Heavy Rain
▲ 25°  /  ▼ 19°
Wind
6 mph SE
Humidity
81%
Dew Point
19°
Pressure
29.82 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
86%
Sunrise
6:13 AM
Sunset
7:55 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Philadelphia is currently heavy rain at 22°C. Precipitation is likely — peak probability 80% around 12 AM. Atmospheric instability is elevated (CAPE up to 1399 J/kg) — isolated convective development possible. Sunrise: 6:13AM · Sunset: 7:55PM.

50 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
70%
12 AM
22°
79%
1 AM
22°
78%
2 AM
22°
50%
3 AM
22°
75%
4 AM
22°
74%
5 AM
21°
64%
6 AM
22°
29%
7 AM
22°
15%
8 AM
23°
9%
9 AM
25°
10%
10 AM
26°
13%
11 AM
27°
22%
12 PM
28°
26%
1 PM
31°
26%
2 PM
31°
32%
3 PM
31°
35%
4 PM
31°
42%
5 PM
31°
42%
6 PM
29°
41%
7 PM
29°
41%
8 PM
28°
41%
9 PM
27°
28%
10 PM
27°
24%
7-Day Forecast
Tonight
25° 19°
Heavy Rain, 70% chance.
Mon
32° 21°
Partly Cloudy with a 64% chance of rain.
Tue
32° 23°
Partly Cloudy.
Wed
33° 22°
Partly Cloudy with a 59% chance of rain.
Thu
33° 22°
Drizzle, 58% chance.
Fri
29° 21°
Rain, 82% chance.
Sat
29° 20°
Rain, 64% chance.
TimeTempConditionsPrecipWindHumidity
Now 22° Heavy Rain 70% 6 mph SE 81%
12 AM 22° Thunderstorm 79% 6 mph SSE 86%
1 AM 22° Rain 78% 7 mph SSE 87%
2 AM 22° Mostly Cloudy 50% 6 mph S 90%
3 AM 22° Overcast 75% 5 mph S 92%
4 AM 22° Rain 74% 4 mph SSW 95%
5 AM 21° Overcast 64% 4 mph SSW 94%
6 AM 22° Overcast 29% 5 mph SW 94%
7 AM 22° Mostly Cloudy 15% 6 mph WSW 93%
8 AM 23° Partly Cloudy 9% 6 mph W 87%
9 AM 25° Partly Cloudy 10% 6 mph WNW 81%
10 AM 26° Partly Cloudy 13% 6 mph WNW 75%
11 AM 27° Mostly Cloudy 22% 6 mph WNW 70%
12 PM 28° Mostly Cloudy 26% 6 mph WNW 65%
1 PM 31° Mostly Cloudy 26% 7 mph WNW 60%
2 PM 31° Mostly Clear 32% 7 mph WNW 59%
3 PM 31° Mostly Clear 35% 6 mph WNW 58%
4 PM 31° Mostly Clear 42% 6 mph W 57%
5 PM 31° Partly Cloudy 42% 6 mph W 61%
6 PM 29° Partly Cloudy 41% 5 mph WNW 67%
7 PM 29° Partly Cloudy 41% 5 mph WNW 71%
8 PM 28° Mostly Cloudy 41% 5 mph WNW 73%
9 PM 27° Mostly Cloudy 28% 4 mph WNW 76%
10 PM 27° Mostly Cloudy 24% 4 mph WNW 78%
15-Day Forecast
Today
8/16
Heavy Rain
70%
19°
25°
Mon
8/17
Partly Cloudy
64%
21°
32°
Tue
8/18
Partly Cloudy
3%
23°
32°
Wed
8/19
Partly Cloudy
59%
22°
33°
Thu
8/20
Drizzle
58%
22°
33°
Fri
8/21
Rain
82%
21°
29°
Sat
8/22
Rain
64%
20°
29°
Sun
8/23
Drizzle
63%
21°
31°
Mon
8/24
Drizzle
44%
19°
30°
Tue
8/25
Drizzle
44%
17°
31°
Wed
8/26
Clear
60%
19°
31°
Thu
8/27
Drizzle
60%
21°
31°
Fri
8/28
Drizzle
60%
19°
30°
Sat
8/29
Drizzle
60%
19°
30°
Sun
8/30
Drizzle
60%
19°
29°
50
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
50 AQI 9.1 µg/m³
O3
Ground-level ozone
31 AQI 34 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 50 Good 31 50
Tue 53 Moderate 44 53
Wed 60 Moderate 49 60
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 Mon Aug 17, 02:00'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
MLCAPE11 J/kg
MUCAPE31 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index3.7
Kinematics
0–6 km Shear29 kt
0–1 km Shear26 kt
Eff. Shear
0–1 km SRH229
0–3 km SRH299
Eff. SRH
Storm Motion302° @ 16 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)
Supercell
K-Index36.5
Thermo & Levels
PWAT2.29 in
0–3 km LR4.1 °C/km
700–500 LR5.4 °C/km
Total Totals43.2
LCL969 hPa
LFC1010 hPa
EL1010 hPa
Freezing Lvl15,571 ft