Heat Advisory — Huntingdon, PA, Mifflin, PA, Juniata, PA, Fulton, PA, Franklin, PA, Perry, PA, Dauphin, PA, Lebanon, PA, Cumberland, PA, Adams, PA, York, PA, Lancaster, PA 7:00 PM Areal Flood Watch 11:00 PM

York, Pennsylvania

Last updated: 5:36 AM CDT  ·  Refresh
21°C
Feels like 24°
Mostly Cloudy
▲ 31°  /  ▼ 21°
Wind
4 mph W
Humidity
96%
Dew Point
20°
Pressure
29.52 inHg
Visibility
7 mi
UV Index
0.0
Cloud Cover
85%
Sunrise
6:36 AM
Sunset
7:35 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: York is currently mostly cloudy at 21°C. Precipitation is likely — peak probability 64% around 12 AM. Atmospheric instability is elevated (CAPE up to 2514 J/kg) — isolated convective development possible. Sunrise: 6:36AM · Sunset: 7:35PM.

Alerts

Heat Advisory
Huntingdon, PA, Mifflin, PA, Juniata, PA, Fulton, PA, Franklin, PA, Perry, PA, Dauphin, PA, Lebanon, PA, Cumberland, PA, Adams, PA, York, PA, Lancaster, PA
Expires 7:00 PM
Areal Flood Watch
Expires 11:00 PM
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
21°
59%
7 AM
20°
59%
8 AM
21°
47%
9 AM
22°
27%
10 AM
24°
26%
11 AM
24°
23%
12 PM
26°
23%
1 PM
29°
17%
2 PM
29°
29%
3 PM
29°
29%
4 PM
29°
36%
5 PM
31°
44%
6 PM
29°
45%
7 PM
28°
45%
8 PM
27°
45%
9 PM
25°
42%
10 PM
24°
42%
11 PM
24°
54%
12 AM
24°
63%
1 AM
23°
52%
2 AM
23°
53%
3 AM
23°
57%
4 AM
23°
58%
5 AM
22°
48%
7-Day Forecast
Today
31° 21°
Partly Cloudy with a 59% chance of rain.
Fri
29° 20°
Partly Cloudy with a 63% chance of rain.
Sat
24° 16°
Overcast with a 23% chance of rain.
Sun
23° 13°
Mostly Clear with a 21% chance of rain.
Mon
24° 13°
Clear.
Tue
26° 13°
Clear.
Wed
27° 17°
Rain, 27% chance.
TimeTempConditionsPrecipWindHumidity
Now 21° Mostly Cloudy 59% 4 mph W 96%
7 AM 20° Rain 59% 3 mph SW 95%
8 AM 21° Partly Cloudy 47% 4 mph SW 92%
9 AM 22° Partly Cloudy 27% 5 mph SW 87%
10 AM 24° Mostly Cloudy 26% 7 mph WSW 82%
11 AM 24° Partly Cloudy 23% 7 mph WSW 76%
12 PM 26° Mostly Clear 23% 8 mph WSW 71%
1 PM 29° Clear 17% 8 mph WSW 66%
2 PM 29° Mostly Clear 29% 8 mph W 64%
3 PM 29° Mostly Clear 29% 8 mph WNW 64%
4 PM 29° Partly Cloudy 36% 9 mph NW 63%
5 PM 31° Partly Cloudy 44% 8 mph NW 67%
6 PM 29° Partly Cloudy 45% 6 mph WNW 73%
7 PM 28° Partly Cloudy 45% 5 mph W 78%
8 PM 27° Partly Cloudy 45% 5 mph WSW 82%
9 PM 25° Mostly Cloudy 42% 5 mph SW 84%
10 PM 24° Overcast 42% 6 mph SSW 86%
11 PM 24° Overcast 54% 6 mph SSW 87%
12 AM 24° Overcast 63% 5 mph SW 89%
1 AM 23° Mostly Cloudy 52% 5 mph SW 91%
2 AM 23° Mostly Cloudy 53% 5 mph WSW 92%
3 AM 23° Rain 57% 6 mph W 92%
4 AM 23° Rain 58% 6 mph W 93%
5 AM 22° Rain 48% 6 mph W 93%
15-Day Forecast
Today
9/3
Partly Cloudy
59%
21°
31°
Fri
9/4
Partly Cloudy
63%
20°
29°
Sat
9/5
Overcast
23%
16°
24°
Sun
9/6
Mostly Clear
21%
13°
23°
Mon
9/7
Clear
8%
13°
24°
Tue
9/8
Clear
8%
13°
26°
Wed
9/9
Rain
27%
17°
27°
Thu
9/10
Rain
64%
17°
31°
Fri
9/11
Drizzle
44%
13°
24°
Sat
9/12
Drizzle
51%
12°
24°
Sun
9/13
Drizzle
60%
17°
28°
Mon
9/14
Drizzle
60%
16°
27°
Tue
9/15
Clear
60%
14°
26°
Wed
9/16
Drizzle
60%
14°
24°
Thu
9/17
Drizzle
60%
14°
25°
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
41 AQI 44 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 52 Moderate 41 52
Fri 50 Good 42 50
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 Thu Sep 3, 09:00'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
SBCAPE62 J/kg
MLCAPE90 J/kg
MUCAPE604 J/kg
SBCIN-198 J/kg
MLCIN-164 J/kg
Lifted Index-0.8
Kinematics
0–6 km Shear42 kt
0–1 km Shear13 kt
Eff. Shear34 kt
0–1 km SRH39
0–3 km SRH67
Eff. SRH65
Storm Motion305° @ 32 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.7
K-Index37.7
Thermo & Levels
PWAT2.01 in
0–3 km LR4.1 °C/km
700–500 LR6.3 °C/km
Total Totals49.6
LCL989 hPa
LFC611 hPa
EL460 hPa
Freezing Lvl14,245 ft