Areal Flood Warning — Montgomery County, PA, Philadelphia County, PA 12:45 AM Areal Flood Watch 1:00 AM

Philadelphia County, Pennsylvania, United States

Last updated: 11:31 PM CDT  ·  Refresh
19°C
Feels like 18°
Overcast
▲ 28°  /  ▼ 20°
Wind
10 mph N
Humidity
85%
Dew Point
17°
Pressure
29.87 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
92%
Sunrise
6:17 AM
Sunset
7:48 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Philadelphia County is currently overcast at 19°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:17AM · Sunset: 7:48PM.

Alerts

Areal Flood Warning
Montgomery County, PA, Philadelphia County, PA
Expires 12:45 AM
Areal Flood Watch
Expires 1:00 AM
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
19°
7%
1 AM
19°
21%
2 AM
19°
16%
3 AM
18°
16%
4 AM
18°
17%
5 AM
17°
18%
6 AM
17°
7%
7 AM
17°
7%
8 AM
18°
3%
9 AM
19°
3%
10 AM
21°
3%
11 AM
22°
3%
12 PM
23°
3%
1 PM
26°
3%
2 PM
27°
8%
3 PM
27°
8%
4 PM
27°
17%
5 PM
27°
18%
6 PM
26°
29%
7 PM
24°
29%
8 PM
24°
32%
9 PM
22°
36%
10 PM
22°
40%
11 PM
21°
40%
7-Day Forecast
Today
28° 20°
Mostly Clear with a 29% chance of rain.
Sat
26° 19°
Overcast with a 73% chance of rain.
Sun
29° 19°
Drizzle, 69% chance.
Mon
28° 17°
Overcast.
Tue
29° 19°
Rain, 61% chance.
Wed
31° 20°
Drizzle, 61% chance.
Thu
29° 20°
Rain, 82% chance.
TimeTempConditionsPrecipWindHumidity
Now 19° Overcast 7% 10 mph N 85%
1 AM 19° Overcast 21% 9 mph N 83%
2 AM 19° Overcast 16% 9 mph N 83%
3 AM 18° Mostly Cloudy 16% 8 mph NNW 82%
4 AM 18° Partly Cloudy 17% 8 mph NNW 82%
5 AM 17° Mostly Clear 18% 8 mph NNW 82%
6 AM 17° Mostly Clear 7% 8 mph NNW 80%
7 AM 17° Clear 7% 8 mph NNW 79%
8 AM 18° Clear 3% 8 mph N 75%
9 AM 19° Clear 3% 7 mph N 71%
10 AM 21° Mostly Clear 3% 7 mph N 66%
11 AM 22° Clear 3% 7 mph N 62%
12 PM 23° Clear 3% 6 mph NNE 58%
1 PM 26° Clear 3% 5 mph NNE 54%
2 PM 27° Mostly Clear 8% 5 mph NNE 52%
3 PM 27° Mostly Clear 8% 4 mph NNE 52%
4 PM 27° Mostly Clear 17% 4 mph NNE 52%
5 PM 27° Mostly Clear 18% 4 mph NE 54%
6 PM 26° Mostly Clear 29% 4 mph NE 58%
7 PM 24° Partly Cloudy 29% 4 mph ENE 62%
8 PM 24° Partly Cloudy 32% 3 mph ENE 66%
9 PM 22° Mostly Clear 36% 3 mph E 71%
10 PM 22° Clear 40% 3 mph E 76%
11 PM 21° Clear 40% 3 mph ESE 79%
15-Day Forecast
Today
8/21
Mostly Clear
29%
20°
28°
Sat
8/22
Overcast
73%
19°
26°
Sun
8/23
Drizzle
69%
19°
29°
Mon
8/24
Overcast
19%
17°
28°
Tue
8/25
Rain
61%
19°
29°
Wed
8/26
Drizzle
61%
20°
31°
Thu
8/27
Rain
82%
20°
29°
Fri
8/28
Rain
82%
20°
31°
Sat
8/29
Rain
68%
21°
31°
Sun
8/30
Drizzle
68%
20°
31°
Mon
8/31
Drizzle
60%
21°
30°
Tue
9/1
Drizzle
60%
20°
30°
Wed
9/2
Drizzle
60%
20°
29°
Thu
9/3
Drizzle
60%
20°
29°
Fri
9/4
Drizzle
60%
19°
29°
52
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
52 AQI 9.4 µg/m³
O3
Ground-level ozone
35 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 52 Moderate 35 52
Sat 50 Good 50 41
Sun 53 Moderate 25 53
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 21, 03:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE10 J/kg
MUCAPE0 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index5.1
Kinematics
0–6 km Shear25 kt
0–1 km Shear15 kt
Eff. Shear—
0–1 km SRH-44
0–3 km SRH16
Eff. SRH—
Storm Motion323° @ 28 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index29.9
Thermo & Levels
PWAT1.65 in
0–3 km LR3.7 °C/km
700–500 LR5.8 °C/km
Total Totals42.8
LCL978 hPa
LFC1012 hPa
EL1012 hPa
Freezing Lvl15,033 ft