Frost Advisory — Tuscarawas, OH, Carroll, OH, Columbiana, 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, Ridges of Eastern Monongalia and Northwestern Preston, WV 8:00 AM

Allegheny County, Pennsylvania, United States

Last updated: 2:43 AM CDT  ·  Refresh
6°C
Feels like 3°
Clear
▲ 19°  /  ▼ 6°
Wind
2 mph NW
Humidity
76%
Dew Point
2°
Pressure
29.18 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
9%
Sunrise
7:38 AM
Sunset
6:29 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Allegheny County is currently clear at 5°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:38AM · Sunset: 6:29PM.

Alerts

Frost Advisory
Tuscarawas, OH, Carroll, OH, Columbiana, 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, Ridges of Eastern Monongalia and Northwestern Preston, WV
Expires 8:00 AM
38 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
6°
17%
4 AM
4°
5%
5 AM
3°
7%
6 AM
2°
9%
7 AM
2°
11%
8 AM
3°
13%
9 AM
7°
6%
10 AM
9°
6%
11 AM
11°
6%
12 PM
13°
6%
1 PM
18°
6%
2 PM
19°
7%
3 PM
19°
7%
4 PM
19°
7%
5 PM
17°
7%
6 PM
15°
3%
7 PM
14°
3%
8 PM
13°
3%
9 PM
11°
3%
10 PM
10°
3%
11 PM
9°
3%
12 AM
9°
3%
1 AM
9°
3%
2 AM
8°
3%
7-Day Forecast
Today
19° 6°
Clear.
Fri
20° 6°
Partly Cloudy.
Sat
20° 3°
Partly Cloudy.
Sun
21° 3°
Fog.
Mon
24° 7°
Clear.
Tue
21° 7°
Clear.
Wed
23° 8°
Rain, 27% chance.
TimeTempConditionsPrecipWindHumidity
Now 6° Clear 17% 2 mph NW 76%
4 AM 4° Clear 5% 3 mph NNW 71%
5 AM 3° Clear 7% 3 mph NW 72%
6 AM 2° Mostly Clear 9% 2 mph NW 74%
7 AM 2° Mostly Clear 11% 2 mph NNW 75%
8 AM 3° Mostly Clear 13% 2 mph NNW 73%
9 AM 7° Mostly Clear 6% 2 mph N 69%
10 AM 9° Clear 6% 3 mph N 64%
11 AM 11° Clear 6% 4 mph NNW 58%
12 PM 13° Clear 6% 5 mph NNW 52%
1 PM 18° Clear 6% 6 mph NNW 47%
2 PM 19° Clear 7% 6 mph NNW 46%
3 PM 19° Clear 7% 7 mph NNW 49%
4 PM 19° Clear 7% 7 mph NNW 51%
5 PM 17° Clear 7% 6 mph NNW 57%
6 PM 15° Clear 3% 5 mph NW 62%
7 PM 14° Clear 3% 5 mph NW 68%
8 PM 13° Clear 3% 5 mph NNW 71%
9 PM 11° Clear 3% 5 mph NNW 73%
10 PM 10° Clear 3% 5 mph N 75%
11 PM 9° Clear 3% 4 mph N 78%
12 AM 9° Clear 3% 4 mph N 82%
1 AM 9° Clear 3% 4 mph N 85%
2 AM 8° Mostly Clear 3% 4 mph N 87%
15-Day Forecast
Today
10/22
Clear
17%
6°
19°
Fri
10/23
Partly Cloudy
6%
6°
20°
Sat
10/24
Partly Cloudy
3%
3°
20°
Sun
10/25
Fog
12%
3°
21°
Mon
10/26
Clear
3%
7°
24°
Tue
10/27
Clear
3%
7°
21°
Wed
10/28
Rain
27%
8°
23°
Thu
10/29
Clear
18%
6°
20°
Fri
10/30
Drizzle
44%
2°
19°
Sat
10/31
Drizzle
60%
4°
23°
Sun
11/1
Drizzle
60%
9°
20°
Mon
11/2
Rain
90%
9°
19°
Tue
11/3
Drizzle
60%
8°
18°
Wed
11/4
Drizzle
60%
8°
19°
Thu
11/5
Drizzle
60%
8°
19°
38
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
38 AQI 7.0 µg/m³
O3
Ground-level ozone
29 AQI 32 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 38 Good 29 38
Fri 51 Moderate 36 51
Sat 52 Moderate 26 52
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 Oct 22, 06:00'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
MLCAPE25 J/kg
MUCAPE0 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index20.2
Kinematics
0–6 km Shear16 kt
0–1 km Shear10 kt
Eff. Shear—
0–1 km SRH13
0–3 km SRH11
Eff. SRH—
Storm Motion356° @ 23 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-45.7
Thermo & Levels
PWAT0.18 in
0–3 km LR1.8 °C/km
700–500 LR6.0 °C/km
Total Totals-5.0
LCL939 hPa
LFC988 hPa
EL988 hPa
Freezing Lvl9,780 ft