Heat Advisory — Tuscarawas, OH, Carroll, OH, Coshocton, OH, Harrison, OH, Jefferson, OH, Muskingum, OH, Guernsey, OH, Belmont, OH, Noble, OH, Monroe, OH, Beaver, PA, Allegheny, PA, Washington, PA, Greene, PA, Westmoreland, PA, Fayette, PA, Hancock, WV, Brooke, WV, Ohio, WV, Marshall, WV, Wetzel, WV, Marion, WV, Monongalia, WV 7:00 PM

Allegheny County, Pennsylvania, United States

Last updated: 5:42 AM CDT  ·  Refresh
23°C
Feels like 27°
Partly Cloudy
▲ 34°  /  ▼ 21°
Wind
5 mph S
Humidity
91%
Dew Point
22°
Pressure
29.04 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
46%
Sunrise
6:49 AM
Sunset
7:48 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Allegheny County is currently partly cloudy at 24°C. Precipitation is likely — peak probability 59% around 6 AM. Atmospheric instability is elevated (CAPE up to 2281 J/kg) — isolated convective development possible. Sunrise: 6:49AM · Sunset: 7:48PM.

Alerts

Heat Advisory
Tuscarawas, OH, Carroll, OH, Coshocton, OH, Harrison, OH, Jefferson, OH, Muskingum, OH, Guernsey, OH, Belmont, OH, Noble, OH, Monroe, OH, Beaver, PA, Allegheny, PA, Washington, PA, Greene, PA, Westmoreland, PA, Fayette, PA, Hancock, WV, Brooke, WV, Ohio, WV, Marshall, WV, Wetzel, WV, Marion, WV, Monongalia, WV
Expires 7:00 PM
59 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
26%
7 AM
23°
43%
8 AM
24°
30%
9 AM
26°
32%
10 AM
28°
31%
11 AM
29°
29%
12 PM
31°
35%
1 PM
33°
35%
2 PM
34°
36%
3 PM
34°
41%
4 PM
34°
41%
5 PM
33°
50%
6 PM
32°
50%
7 PM
30°
51%
8 PM
29°
55%
9 PM
26°
55%
10 PM
26°
57%
11 PM
25°
40%
12 AM
24°
44%
1 AM
24°
45%
2 AM
23°
40%
3 AM
23°
41%
4 AM
23°
38%
5 AM
22°
39%
7-Day Forecast
Today
34° 21°
Mostly Clear with a 55% chance of rain.
Fri
31° 21°
Partly Cloudy with a 69% chance of rain.
Sat
29° 17°
Mostly Cloudy with a 41% chance of rain.
Sun
27° 14°
Mostly Cloudy.
Mon
28° 13°
Clear.
Tue
29° 16°
Drizzle, 56% chance.
Wed
31° 19°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 23° Partly Cloudy 26% 5 mph S 91%
7 AM 23° Partly Cloudy 43% 4 mph SW 89%
8 AM 24° Partly Cloudy 30% 4 mph SW 84%
9 AM 26° Partly Cloudy 32% 4 mph SW 78%
10 AM 28° Partly Cloudy 31% 6 mph SW 71%
11 AM 29° Mostly Clear 29% 8 mph WSW 65%
12 PM 31° Mostly Clear 35% 8 mph WSW 61%
1 PM 33° Clear 35% 9 mph WSW 56%
2 PM 34° Clear 36% 9 mph WSW 54%
3 PM 34° Clear 41% 9 mph WSW 53%
4 PM 34° Mostly Clear 41% 9 mph WSW 53%
5 PM 33° Mostly Clear 50% 8 mph WSW 59%
6 PM 32° Mostly Clear 50% 7 mph WSW 67%
7 PM 30° Partly Cloudy 51% 7 mph WSW 75%
8 PM 29° Partly Cloudy 55% 5 mph W 80%
9 PM 26° Partly Cloudy 55% 5 mph W 84%
10 PM 26° Partly Cloudy 57% 6 mph WSW 87%
11 PM 25° Partly Cloudy 40% 5 mph SW 88%
12 AM 24° Partly Cloudy 44% 4 mph W 89%
1 AM 24° Mostly Cloudy 45% 4 mph WSW 90%
2 AM 23° Mostly Cloudy 40% 4 mph WSW 91%
3 AM 23° Partly Cloudy 41% 3 mph W 92%
4 AM 23° Partly Cloudy 38% 3 mph NE 93%
5 AM 22° Partly Cloudy 39% 3 mph NE 93%
15-Day Forecast
Today
9/3
Mostly Clear
55%
21°
34°
Fri
9/4
Partly Cloudy
69%
21°
31°
Sat
9/5
Mostly Cloudy
41%
17°
29°
Sun
9/6
Mostly Cloudy
3%
14°
27°
Mon
9/7
Clear
3%
13°
28°
Tue
9/8
Drizzle
56%
16°
29°
Wed
9/9
Rain
63%
19°
31°
Thu
9/10
Drizzle
63%
17°
32°
Fri
9/11
Drizzle
44%
16°
28°
Sat
9/12
Rain
68%
16°
29°
Sun
9/13
Drizzle
64%
18°
29°
Mon
9/14
Drizzle
60%
16°
29°
Tue
9/15
Clear
60%
16°
27°
Wed
9/16
Drizzle
60%
15°
28°
Thu
9/17
Drizzle
60%
16°
28°
59
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
59 AQI 13.6 µg/m³
O3
Ground-level ozone
46 AQI 51 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 59 Moderate 46 59
Fri 56 Moderate 45 56
Sat 35 Good 35 28
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 Thu Sep 3, 09:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1209 J/kg
MLCAPE904 J/kg
MUCAPE1323 J/kg
SBCIN-152 J/kg
MLCIN-121 J/kg
Lifted Index-4.6
Kinematics
0–6 km Shear45 kt
0–1 km Shear24 kt
Eff. Shear43 kt
0–1 km SRH111
0–3 km SRH112
Eff. SRH112
Storm Motion309° @ 28 kt
0–1 km EHI0.8
Composite Parameters
Sig. Tornado0.7
STP (eff)0.3
Supercell3.3
K-Index39.9
Thermo & Levels
PWAT1.75 in
0–3 km LR5.6 °C/km
700–500 LR5.6 °C/km
Total Totals49.9
LCL959 hPa
LFC783 hPa
EL225 hPa
Freezing Lvl14,042 ft