Flash Flood Warning — Centre County, PA, Clearfield County, PA, Huntingdon County, PA, Juniata County, PA, Mifflin County, PA, Perry County, PA 5:00 AM 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

Perry County, Pennsylvania, United States

Last updated: 3:52 AM CDT  ·  Refresh
20°C
Feels like 22°
Mostly Cloudy
▲ 31°  /  ▼ 20°
Wind
5 mph S
Humidity
97%
Dew Point
19°
Pressure
29.18 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
72%
Sunrise
6:38 AM
Sunset
7:37 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Perry County is currently mostly cloudy at 20°C. Precipitation is likely — peak probability 78% around 7 PM. Atmospheric instability is elevated (CAPE up to 2633 J/kg) — isolated convective development possible. Sunrise: 6:38AM · Sunset: 7:37PM.

Alerts

Flash Flood Warning
Centre County, PA, Clearfield County, PA, Huntingdon County, PA, Juniata County, PA, Mifflin County, PA, Perry County, PA
Expires 5:00 AM
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
44 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
20°
54%
5 AM
18°
55%
6 AM
18°
42%
7 AM
19°
40%
8 AM
21°
25%
9 AM
21°
39%
10 AM
23°
19%
11 AM
25°
27%
12 PM
27°
33%
1 PM
30°
33%
2 PM
30°
33%
3 PM
29°
34%
4 PM
29°
48%
5 PM
30°
58%
6 PM
29°
71%
7 PM
27°
77%
8 PM
26°
76%
9 PM
24°
74%
10 PM
24°
69%
11 PM
23°
60%
12 AM
23°
51%
1 AM
22°
48%
2 AM
22°
48%
3 AM
22°
48%
7-Day Forecast
Today
31° 20°
Partly Cloudy with a 77% chance of rain.
Fri
29° 19°
Mostly Cloudy with a 51% chance of rain.
Sat
26° 14°
Partly Cloudy with a 28% chance of rain.
Sun
22° 12°
Partly Cloudy.
Mon
25° 12°
Clear.
Tue
27° 12°
Drizzle, 38% chance.
Wed
26° 16°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 20° Mostly Cloudy 54% 5 mph S 97%
5 AM 18° Rain 55% 3 mph NW 97%
6 AM 18° Rain 42% 3 mph S 97%
7 AM 19° Partly Cloudy 40% 4 mph S 97%
8 AM 21° Mostly Cloudy 25% 5 mph SSW 92%
9 AM 21° Mostly Cloudy 39% 4 mph WSW 85%
10 AM 23° Mostly Clear 19% 5 mph WSW 79%
11 AM 25° Mostly Clear 27% 7 mph WSW 72%
12 PM 27° Mostly Clear 33% 8 mph W 66%
1 PM 30° Mostly Clear 33% 9 mph W 60%
2 PM 30° Partly Cloudy 33% 8 mph W 60%
3 PM 29° Partly Cloudy 34% 8 mph W 61%
4 PM 29° Mostly Cloudy 48% 7 mph WNW 62%
5 PM 30° Mostly Cloudy 58% 6 mph WNW 66%
6 PM 29° Overcast 71% 5 mph W 72%
7 PM 27° Rain 77% 4 mph W 76%
8 PM 26° Rain 76% 4 mph W 80%
9 PM 24° Overcast 74% 4 mph W 85%
10 PM 24° Overcast 69% 3 mph W 90%
11 PM 23° Overcast 60% 4 mph W 92%
12 AM 23° Mostly Cloudy 51% 4 mph W 92%
1 AM 22° Mostly Cloudy 48% 4 mph W 93%
2 AM 22° Partly Cloudy 48% 4 mph W 92%
3 AM 22° Partly Cloudy 48% 4 mph WNW 92%
15-Day Forecast
Today
9/3
Partly Cloudy
77%
20°
31°
Fri
9/4
Mostly Cloudy
51%
19°
29°
Sat
9/5
Partly Cloudy
28%
14°
26°
Sun
9/6
Partly Cloudy
8%
12°
22°
Mon
9/7
Clear
8%
12°
25°
Tue
9/8
Drizzle
38%
12°
27°
Wed
9/9
Rain
63%
16°
26°
Thu
9/10
Drizzle
43%
15°
31°
Fri
9/11
Drizzle
44%
12°
24°
Sat
9/12
Drizzle
51%
11°
24°
Sun
9/13
Drizzle
60%
16°
28°
Mon
9/14
Drizzle
60%
14°
27°
Tue
9/15
Clear
60%
13°
25°
Wed
9/16
Drizzle
60%
13°
24°
Thu
9/17
Drizzle
60%
13°
25°
44
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
44 AQI 8.0 µg/m³
O3
Ground-level ozone
36 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 44 Good 36 44
Fri 40 Good 38 40
Sat 36 Good 36 29
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
SBCAPE87 J/kg
MLCAPE177 J/kg
MUCAPE778 J/kg
SBCIN-320 J/kg
MLCIN-220 J/kg
Lifted Index-1.7
Kinematics
0–6 km Shear41 kt
0–1 km Shear19 kt
Eff. Shear33 kt
0–1 km SRH108
0–3 km SRH134
Eff. SRH85
Storm Motion307° @ 27 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell1.1
K-Index37.1
Thermo & Levels
PWAT1.83 in
0–3 km LR3.9 °C/km
700–500 LR6.9 °C/km
Total Totals53.2
LCL978 hPa
LFC576 hPa
EL430 hPa
Freezing Lvl14,154 ft