Freeze Watch 8:00 AM

Union County, Pennsylvania, United States

Last updated: 9:07 PM CDT  ·  Refresh
13°C
Feels like 11°
Mostly Cloudy
▲ 21°  /  ▼ 4°
Wind
9 mph NW
Humidity
79%
Dew Point
10°
Pressure
28.87 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
64%
Sunrise
7:20 AM
Sunset
6:26 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Union County is currently mostly cloudy at 13°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:20AM · Sunset: 6:26PM.

Alerts

Freeze Watch
Expires 8:00 AM
33 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
13°
26%
11 PM
11°
16%
12 AM
10°
16%
1 AM
9°
13%
2 AM
7°
12%
3 AM
7°
12%
4 AM
6°
13%
5 AM
6°
7%
6 AM
5°
4%
7 AM
4°
4%
8 AM
4°
4%
9 AM
4°
4%
10 AM
4°
4%
11 AM
5°
4%
12 PM
6°
3%
1 PM
6°
3%
2 PM
9°
3%
3 PM
9°
3%
4 PM
9°
3%
5 PM
10°
3%
6 PM
8°
3%
7 PM
7°
3%
8 PM
6°
3%
9 PM
6°
3%
7-Day Forecast
Tonight
21° 4°
Mostly Cloudy with a 26% chance of rain.
Sat
16° 1°
Partly Cloudy.
Sun
17° 1°
Clear.
Mon
20° 2°
Clear.
Tue
22° 4°
Clear.
Wed
19° 3°
Clear.
Thu
19° 2°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 13° Mostly Cloudy 26% 9 mph NW 79%
11 PM 11° Mostly Clear 16% 10 mph NW 79%
12 AM 10° Mostly Clear 16% 11 mph NNW 78%
1 AM 9° Partly Cloudy 13% 11 mph NNW 77%
2 AM 7° Mostly Cloudy 12% 12 mph NNW 76%
3 AM 7° Mostly Cloudy 12% 11 mph NNW 76%
4 AM 6° Overcast 13% 11 mph NNW 76%
5 AM 6° Overcast 7% 10 mph NNW 75%
6 AM 5° Overcast 4% 10 mph NNW 75%
7 AM 4° Mostly Cloudy 4% 11 mph NNW 74%
8 AM 4° Mostly Cloudy 4% 11 mph NNW 73%
9 AM 4° Mostly Cloudy 4% 12 mph NNW 70%
10 AM 4° Mostly Cloudy 4% 12 mph N 66%
11 AM 5° Mostly Cloudy 4% 13 mph N 61%
12 PM 6° Partly Cloudy 3% 12 mph N 57%
1 PM 6° Partly Cloudy 3% 12 mph NNW 52%
2 PM 9° Mostly Clear 3% 12 mph NNW 48%
3 PM 9° Mostly Clear 3% 11 mph NNW 47%
4 PM 9° Mostly Clear 3% 11 mph NNW 46%
5 PM 10° Clear 3% 10 mph NNW 45%
6 PM 8° Clear 3% 9 mph NNW 46%
7 PM 7° Clear 3% 8 mph NNW 48%
8 PM 6° Clear 3% 7 mph NNW 49%
9 PM 6° Clear 3% 6 mph NNW 50%
15-Day Forecast
Today
10/16
Mostly Cloudy
26%
4°
21°
Sat
10/17
Partly Cloudy
13%
1°
16°
Sun
10/18
Clear
3%
1°
17°
Mon
10/19
Clear
3%
2°
20°
Tue
10/20
Clear
3%
4°
22°
Wed
10/21
Clear
3%
3°
19°
Thu
10/22
Clear
3%
2°
19°
Fri
10/23
Clear
3%
4°
20°
Sat
10/24
Clear
3%
3°
19°
Sun
10/25
Clear
3%
3°
19°
Mon
10/26
Clear
25%
3°
18°
Tue
10/27
Clear
25%
5°
18°
Wed
10/28
Clear
60%
4°
18°
Thu
10/29
Clear
60%
4°
17°
Fri
10/30
Drizzle
60%
4°
17°
33
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
33 AQI 6.0 µg/m³
O3
Ground-level ozone
26 AQI 28 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 33 Good 26 33
Sun 31 Good 31 2
Mon 25 Good 25 11
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 Fri Oct 16, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 90 100 110 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE1 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index9.3
Kinematics
0–6 km Shear79 kt
0–1 km Shear26 kt
Eff. Shear—
0–1 km SRH-228
0–3 km SRH-169
Eff. SRH—
Storm Motion258° @ 54 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index17.2
Thermo & Levels
PWAT0.84 in
0–3 km LR4.3 °C/km
700–500 LR5.6 °C/km
Total Totals35.2
LCL923 hPa
LFC—
EL—
Freezing Lvl10,197 ft