Extreme Heat Watch 7:00 PM

Pittsburgh, Pennsylvania

Last updated: 9:47 AM CDT  ·  Refresh
24°C
Feels like 27°
Rain
▲ 26°  /  ▼ 17°
Wind
6 mph W
Humidity
83%
Dew Point
22°
Pressure
28.83 inHg
Visibility
5 mi
UV Index
3.4
Cloud Cover
92%
Sunrise
6:33 AM
Sunset
8:14 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Pittsburgh is currently rain at 25°C. Precipitation is likely — peak probability 90% around 11 AM. Atmospheric instability is elevated (CAPE up to 1171 J/kg) — isolated convective development possible. Sunrise: 6:33AM · Sunset: 8:14PM.

Alerts

Extreme Heat Watch
Expires 7:00 PM
41 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
71%
11 AM
24°
90%
12 PM
23°
86%
1 PM
24°
85%
2 PM
25°
65%
3 PM
25°
63%
4 PM
25°
57%
5 PM
26°
32%
6 PM
26°
32%
7 PM
24°
21%
8 PM
24°
14%
9 PM
23°
14%
10 PM
22°
13%
11 PM
21°
3%
12 AM
21°
3%
1 AM
20°
14%
2 AM
20°
14%
3 AM
19°
13%
4 AM
19°
13%
5 AM
19°
13%
6 AM
18°
12%
7 AM
18°
12%
8 AM
19°
12%
9 AM
20°
12%
7-Day Forecast
Today
26° 17°
Mostly Cloudy with a 85% chance of rain.
Tue
27° 17°
Partly Cloudy.
Wed
27° 17°
Partly Cloudy with a 42% chance of rain.
Thu
23° 17°
Mostly Cloudy with a 58% chance of rain.
Fri
26° 16°
Clear.
Sat
27° 16°
Drizzle, 52% chance.
Sun
26° 16°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Rain 71% 6 mph W 83%
11 AM 24° Rain 90% 8 mph WSW 84%
12 PM 23° Heavy Rain 86% 8 mph W 86%
1 PM 24° Overcast 85% 7 mph WNW 85%
2 PM 25° Overcast 65% 7 mph WNW 82%
3 PM 25° Overcast 63% 6 mph WNW 80%
4 PM 25° Overcast 57% 6 mph WNW 78%
5 PM 26° Mostly Cloudy 32% 5 mph NW 79%
6 PM 26° Mostly Cloudy 32% 4 mph NW 81%
7 PM 24° Mostly Cloudy 21% 4 mph NW 84%
8 PM 24° Partly Cloudy 14% 4 mph NNW 85%
9 PM 23° Partly Cloudy 14% 4 mph NNW 87%
10 PM 22° Mostly Clear 13% 4 mph NNW 88%
11 PM 21° Clear 3% 4 mph NNW 90%
12 AM 21° Mostly Clear 3% 4 mph NNW 90%
1 AM 20° Partly Cloudy 14% 4 mph NNW 91%
2 AM 20° Partly Cloudy 14% 4 mph NNW 91%
3 AM 19° Partly Cloudy 13% 3 mph N 91%
4 AM 19° Haze 13% 3 mph N 91%
5 AM 19° Fog 13% 3 mph NNW 90%
6 AM 18° Fog 12% 3 mph NNW 90%
7 AM 18° Fog 12% 3 mph NNW 89%
8 AM 19° Mostly Cloudy 12% 3 mph NNW 85%
9 AM 20° Mostly Cloudy 12% 3 mph NNW 80%
15-Day Forecast
Today
8/17
Mostly Cloudy
85%
17°
26°
Tue
8/18
Partly Cloudy
14%
17°
27°
Wed
8/19
Partly Cloudy
42%
17°
27°
Thu
8/20
Mostly Cloudy
58%
17°
23°
Fri
8/21
Clear
16%
16°
26°
Sat
8/22
Drizzle
52%
16°
27°
Sun
8/23
Rain
63%
16°
26°
Mon
8/24
Drizzle
43%
15°
25°
Tue
8/25
Rain
68%
16°
24°
Wed
8/26
Drizzle
68%
16°
25°
Thu
8/27
Drizzle
60%
13°
25°
Fri
8/28
Drizzle
60%
16°
25°
Sat
8/29
Drizzle
60%
16°
25°
Sun
8/30
Drizzle
60%
16°
25°
Mon
8/31
Drizzle
60%
16°
25°
41
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
41 AQI 7.4 µg/m³
O3
Ground-level ozone
35 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 41 Good 35 41
Wed 43 Good 43 41
Thu 63 Moderate 38 63
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, 13:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1422 J/kg
MLCAPE819 J/kg
MUCAPE1422 J/kg
SBCIN0 J/kg
MLCIN-0 J/kg
Lifted Index-3.7
Kinematics
0–6 km Shear22 kt
0–1 km Shear9 kt
Eff. Shear21 kt
0–1 km SRH9
0–3 km SRH49
Eff. SRH49
Storm Motion299° @ 29 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.8
K-Index32.9
Thermo & Levels
PWAT2.03 in
0–3 km LR5.7 °C/km
700–500 LR5.3 °C/km
Total Totals43.7
LCL944 hPa
LFC976 hPa
EL175 hPa
Freezing Lvl14,472 ft