York County, Pennsylvania, United States

Last updated: 9:10 PM CDT  ·  Refresh
18°C
Feels like 19°
Mostly Clear
▲ 27°  /  ▼ 14°
Wind
6 mph NNW
Humidity
92%
Dew Point
17°
Pressure
29.56 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
15%
Sunrise
6:23 AM
Sunset
7:56 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: York County is currently mostly clear at 18°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:23AM · Sunset: 7:56PM.

Alerts

No active alerts for this location.
55 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
18°
3%
11 PM
18°
21%
12 AM
18°
14%
1 AM
17°
14%
2 AM
17°
3%
3 AM
16°
3%
4 AM
16°
3%
5 AM
14°
3%
6 AM
14°
3%
7 AM
14°
3%
8 AM
16°
3%
9 AM
17°
3%
10 AM
19°
3%
11 AM
20°
5%
12 PM
22°
5%
1 PM
24°
5%
2 PM
24°
5%
3 PM
25°
5%
4 PM
25°
5%
5 PM
25°
11%
6 PM
24°
16%
7 PM
23°
16%
8 PM
22°
18%
9 PM
20°
36%
7-Day Forecast
Tonight
27° 14°
Mostly Clear.
Fri
25° 14°
Partly Cloudy with a 36% chance of rain.
Sat
24° 17°
Rain, 75% chance.
Sun
28° 15°
Partly Cloudy with a 43% chance of rain.
Mon
27° 14°
Clear.
Tue
27° 14°
Rain, 61% chance.
Wed
28° 16°
Rain, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 18° Mostly Clear 3% 6 mph NNW 92%
11 PM 18° Mostly Clear 21% 5 mph NNW 93%
12 AM 18° Mostly Cloudy 14% 4 mph NNW 93%
1 AM 17° Partly Cloudy 14% 4 mph NNW 93%
2 AM 17° Partly Cloudy 3% 3 mph NNW 93%
3 AM 16° Partly Cloudy 3% 3 mph NW 93%
4 AM 16° Partly Cloudy 3% 4 mph NW 94%
5 AM 14° Partly Cloudy 3% 4 mph NNW 95%
6 AM 14° Partly Cloudy 3% 4 mph NNW 94%
7 AM 14° Partly Cloudy 3% 5 mph NNW 92%
8 AM 16° Mostly Cloudy 3% 6 mph N 89%
9 AM 17° Partly Cloudy 3% 6 mph N 84%
10 AM 19° Partly Cloudy 3% 6 mph N 78%
11 AM 20° Partly Cloudy 5% 6 mph N 72%
12 PM 22° Mostly Clear 5% 5 mph N 66%
1 PM 24° Mostly Clear 5% 5 mph NNE 60%
2 PM 24° Mostly Clear 5% 5 mph NNE 55%
3 PM 25° Mostly Clear 5% 4 mph NNE 54%
4 PM 25° Mostly Clear 5% 4 mph NE 54%
5 PM 25° Mostly Clear 11% 4 mph NE 55%
6 PM 24° Mostly Clear 16% 4 mph NE 59%
7 PM 23° Mostly Clear 16% 4 mph NE 63%
8 PM 22° Mostly Clear 18% 3 mph NE 67%
9 PM 20° Partly Cloudy 36% 3 mph NE 71%
15-Day Forecast
Today
8/20
Mostly Clear
3%
14°
27°
Fri
8/21
Partly Cloudy
36%
14°
25°
Sat
8/22
Rain
75%
17°
24°
Sun
8/23
Partly Cloudy
43%
15°
28°
Mon
8/24
Clear
8%
14°
27°
Tue
8/25
Rain
61%
14°
27°
Wed
8/26
Rain
71%
16°
28°
Thu
8/27
Rain
82%
18°
27°
Fri
8/28
Rain
68%
18°
29°
Sat
8/29
Rain
68%
18°
29°
Sun
8/30
Drizzle
64%
18°
30°
Mon
8/31
Drizzle
60%
17°
30°
Tue
9/1
Drizzle
60%
16°
27°
Wed
9/2
Drizzle
60%
16°
27°
Thu
9/3
Drizzle
60%
16°
26°
55
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
55 AQI 11.3 µg/m³
O3
Ground-level ozone
38 AQI 42 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 55 Moderate 38 55
Sat 49 Good 40 49
Sun 55 Moderate 26 55
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Thu Aug 20, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE7 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index5.3
Kinematics
0–6 km Shear29 kt
0–1 km Shear23 kt
Eff. Shear—
0–1 km SRH-136
0–3 km SRH-24
Eff. SRH—
Storm Motion319° @ 29 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index31.4
Thermo & Levels
PWAT1.60 in
0–3 km LR3.9 °C/km
700–500 LR5.4 °C/km
Total Totals41.6
LCL977 hPa
LFC—
EL—
Freezing Lvl15,039 ft