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: 3:56 AM CDT  ·  Refresh
21°C
Feels like 23°
Overcast
▲ 31°  /  ▼ 21°
Wind
6 mph SSE
Humidity
96%
Dew Point
20°
Pressure
29.50 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
95%
Sunrise
6:36 AM
Sunset
7:35 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: York is currently overcast at 21°C. Precipitation is likely — peak probability 62% around 8 PM. Atmospheric instability is elevated (CAPE up to 2772 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°
52%
5 AM
19°
40%
6 AM
20°
34%
7 AM
21°
36%
8 AM
22°
36%
9 AM
22°
17%
10 AM
24°
18%
11 AM
26°
21%
12 PM
27°
21%
1 PM
30°
21%
2 PM
30°
33%
3 PM
30°
41%
4 PM
29°
46%
5 PM
31°
53%
6 PM
29°
54%
7 PM
28°
59%
8 PM
27°
61%
9 PM
26°
61%
10 PM
25°
51%
11 PM
24°
50%
12 AM
24°
47%
1 AM
24°
40%
2 AM
23°
40%
3 AM
23°
41%
7-Day Forecast
Today
31° 21°
Partly Cloudy with a 59% chance of rain.
Fri
29° 20°
Partly Cloudy with a 59% chance of rain.
Sat
25° 15°
Mostly Cloudy.
Sun
21° 13°
Clear with a 22% chance of rain.
Mon
24° 13°
Clear.
Tue
26° 14°
Clear.
Wed
27° 17°
Rain, 27% chance.
TimeTempConditionsPrecipWindHumidity
Now 21° Overcast 52% 6 mph SSE 96%
5 AM 19° Overcast 40% 4 mph NNW 96%
6 AM 20° Drizzle 34% 4 mph NNW 96%
7 AM 21° Rain 36% 5 mph SSE 95%
8 AM 22° Partly Cloudy 36% 5 mph SSW 91%
9 AM 22° Mostly Cloudy 17% 6 mph SW 85%
10 AM 24° Partly Cloudy 18% 7 mph SW 80%
11 AM 26° Mostly Clear 21% 8 mph WSW 74%
12 PM 27° Mostly Clear 21% 8 mph WSW 68%
1 PM 30° Clear 21% 8 mph WSW 63%
2 PM 30° Mostly Clear 33% 8 mph W 62%
3 PM 30° Partly Cloudy 41% 9 mph WNW 62%
4 PM 29° Partly Cloudy 46% 10 mph WNW 62%
5 PM 31° Mostly Cloudy 53% 8 mph WNW 68%
6 PM 29° Overcast 54% 6 mph W 75%
7 PM 28° Overcast 59% 6 mph WSW 81%
8 PM 27° Overcast 61% 5 mph WSW 84%
9 PM 26° Overcast 61% 4 mph WSW 87%
10 PM 25° Overcast 51% 6 mph SW 89%
11 PM 24° Overcast 50% 5 mph SW 91%
12 AM 24° Mostly Cloudy 47% 4 mph SW 92%
1 AM 24° Mostly Cloudy 40% 4 mph SW 94%
2 AM 23° Mostly Cloudy 40% 4 mph WSW 94%
3 AM 23° Mostly Cloudy 41% 4 mph WSW 94%
15-Day Forecast
Today
9/3
Partly Cloudy
59%
21°
31°
Fri
9/4
Partly Cloudy
59%
20°
29°
Sat
9/5
Mostly Cloudy
18%
15°
25°
Sun
9/6
Clear
22%
13°
21°
Mon
9/7
Clear
8%
13°
24°
Tue
9/8
Clear
17%
14°
26°
Wed
9/9
Rain
27%
17°
27°
Thu
9/10
Drizzle
43%
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
25%
14°
26°
Wed
9/16
Clear
60%
13°
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, 07:00'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
SBCAPE130 J/kg
MLCAPE407 J/kg
MUCAPE1280 J/kg
SBCIN-285 J/kg
MLCIN-126 J/kg
Lifted Index-1.9
Kinematics
0–6 km Shear41 kt
0–1 km Shear20 kt
Eff. Shear45 kt
0–1 km SRH160
0–3 km SRH177
Eff. SRH157
Storm Motion304° @ 28 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.1
STP (eff)0.2
Supercell4.7
K-Index36.5
Thermo & Levels
PWAT1.88 in
0–3 km LR4.1 °C/km
700–500 LR6.6 °C/km
Total Totals53.2
LCL988 hPa
LFC591 hPa
EL402 hPa
Freezing Lvl14,488 ft