Heat Advisory — 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: 5:21 PM CDT  ·  Refresh
31°C
Feels like 31°
Mostly Clear
▲ 31°  /  ▼ 22°
Wind
6 mph SW
Humidity
44%
Dew Point
17°
Pressure
29.73 inHg
Visibility
10 mi
UV Index
4.2
Cloud Cover
25%
Sunrise
6:09 AM
Sunset
8:01 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Philadelphia is currently mostly clear at 30°C. Precipitation is likely — peak probability 68% around 2 AM. Atmospheric instability is elevated (CAPE up to 882 J/kg) — isolated convective development possible. Sunrise: 6:09AM · Sunset: 8:01PM.

Alerts

Heat Advisory
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
Expires 8:00 PM
54 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
31°
12%
7 PM
30°
33%
8 PM
29°
44%
9 PM
27°
51%
10 PM
26°
51%
11 PM
26°
55%
12 AM
24°
61%
1 AM
23°
66%
2 AM
22°
68%
3 AM
22°
64%
4 AM
22°
62%
5 AM
22°
58%
6 AM
22°
51%
7 AM
22°
41%
8 AM
23°
17%
9 AM
26°
20%
10 AM
27°
10%
11 AM
27°
8%
12 PM
28°
16%
1 PM
29°
25%
2 PM
30°
25%
3 PM
30°
25%
4 PM
30°
11%
5 PM
28°
11%
7-Day Forecast
Tonight
31° 22°
Mostly Clear with a 51% chance of rain.
Thu
33° 22°
Partly Cloudy with a 64% chance of rain.
Fri
30° 22°
Mostly Cloudy.
Sat
31° 21°
Clear with a 61% chance of rain.
Sun
33° 21°
Rain, 82% chance.
Mon
32° 22°
Drizzle, 82% chance.
Tue
33° 20°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 31° Mostly Clear 12% 6 mph SW 44%
7 PM 30° Partly Cloudy 33% 7 mph SSW 47%
8 PM 29° Partly Cloudy 44% 6 mph SSW 52%
9 PM 27° Mostly Cloudy 51% 5 mph SSW 56%
10 PM 26° Mostly Cloudy 51% 5 mph SSW 60%
11 PM 26° Mostly Cloudy 55% 5 mph SSW 65%
12 AM 24° Partly Cloudy 61% 6 mph SSW 72%
1 AM 23° Partly Cloudy 66% 7 mph SW 79%
2 AM 22° Mostly Cloudy 68% 8 mph SW 84%
3 AM 22° Mostly Cloudy 64% 7 mph SW 87%
4 AM 22° Mostly Cloudy 62% 6 mph SW 90%
5 AM 22° Partly Cloudy 58% 5 mph WSW 90%
6 AM 22° Partly Cloudy 51% 5 mph WSW 88%
7 AM 22° Mostly Clear 41% 6 mph W 85%
8 AM 23° Mostly Clear 17% 7 mph W 81%
9 AM 26° Mostly Clear 20% 7 mph W 75%
10 AM 27° Mostly Clear 10% 7 mph WNW 69%
11 AM 27° Partly Cloudy 8% 7 mph WNW 65%
12 PM 28° Partly Cloudy 16% 7 mph WNW 62%
1 PM 29° Partly Cloudy 25% 8 mph WNW 60%
2 PM 30° Partly Cloudy 25% 8 mph WNW 58%
3 PM 30° Partly Cloudy 25% 8 mph WNW 56%
4 PM 30° Partly Cloudy 11% 8 mph WNW 54%
5 PM 28° Partly Cloudy 11% 8 mph WNW 54%
15-Day Forecast
Today
8/12
Mostly Clear
51%
22°
31°
Thu
8/13
Partly Cloudy
64%
22°
33°
Fri
8/14
Mostly Cloudy
7%
22°
30°
Sat
8/15
Clear
61%
21°
31°
Sun
8/16
Rain
82%
21°
33°
Mon
8/17
Drizzle
82%
22°
32°
Tue
8/18
Clear
8%
20°
33°
Wed
8/19
Clear
17%
21°
34°
Thu
8/20
Drizzle
60%
22°
33°
Fri
8/21
Drizzle
68%
22°
33°
Sat
8/22
Drizzle
60%
21°
33°
Sun
8/23
Drizzle
60%
22°
32°
Mon
8/24
Drizzle
60%
21°
31°
Tue
8/25
Drizzle
60%
20°
30°
Wed
8/26
Drizzle
60%
20°
30°
54
Moderate
U.S. Air Quality Index · Dominant: PM2.5
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
Dominant
54 AQI 10.9 µg/m³
O3
Ground-level ozone
50 AQI 55 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 54 Moderate 50 54
Fri 61 Moderate 44 61
Sat 42 Good 38 42
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 Wed Aug 12, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 90 100 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE496 J/kg
MLCAPE262 J/kg
MUCAPE496 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-2.3
Kinematics
0–6 km Shear37 kt
0–1 km Shear2 kt
Eff. Shear27 kt
0–1 km SRH16
0–3 km SRH46
Eff. SRH46
Storm Motion318° @ 22 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.3
K-Index26.9
Thermo & Levels
PWAT1.43 in
0–3 km LR7.5 °C/km
700–500 LR6.2 °C/km
Total Totals46.8
LCL827 hPa
LFC1007 hPa
EL270 hPa
Freezing Lvl13,415 ft