Freeze Watch 8:00 AM

Lancaster, Pennsylvania

Last updated: 9:08 PM CDT  ·  Refresh
17°C
Feels like 14°
Mostly Cloudy
▲ 25°  /  ▼ 7°
Wind
9 mph NW
Humidity
80%
Dew Point
13°
Pressure
29.42 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
80%
Sunrise
7:16 AM
Sunset
6:24 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Lancaster is currently mostly cloudy at 16°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:16AM · Sunset: 6:24PM.

Alerts

Freeze Watch
Expires 8:00 AM
36 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
17°
29%
11 PM
17°
32%
12 AM
16°
32%
1 AM
14°
47%
2 AM
13°
30%
3 AM
12°
29%
4 AM
11°
14%
5 AM
9°
21%
6 AM
8°
7%
7 AM
8°
7%
8 AM
7°
4%
9 AM
8°
4%
10 AM
8°
5%
11 AM
8°
3%
12 PM
8°
3%
1 PM
12°
3%
2 PM
12°
3%
3 PM
12°
3%
4 PM
12°
3%
5 PM
11°
3%
6 PM
10°
3%
7 PM
9°
3%
8 PM
8°
3%
9 PM
7°
3%
7-Day Forecast
Tonight
25° 7°
Mostly Cloudy with a 29% chance of rain.
Sat
18° 2°
Partly Cloudy with a 47% chance of rain.
Sun
17° 1°
Clear.
Mon
21° 2°
Clear.
Tue
23° 6°
Clear.
Wed
21° 4°
Clear with a 33% chance of rain.
Thu
19° 3°
Clear with a 34% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 17° Mostly Cloudy 29% 9 mph NW 80%
11 PM 17° Mostly Cloudy 32% 11 mph NW 77%
12 AM 16° Overcast 32% 11 mph NW 76%
1 AM 14° Rain 47% 12 mph NNW 76%
2 AM 13° Overcast 30% 12 mph NNW 75%
3 AM 12° Overcast 29% 12 mph NNW 73%
4 AM 11° Overcast 14% 12 mph NNW 72%
5 AM 9° Overcast 21% 12 mph NNW 70%
6 AM 8° Overcast 7% 12 mph NNW 69%
7 AM 8° Mostly Cloudy 7% 12 mph NNW 69%
8 AM 7° Mostly Cloudy 4% 13 mph N 69%
9 AM 8° Mostly Cloudy 4% 14 mph N 66%
10 AM 8° Mostly Cloudy 5% 15 mph NNW 62%
11 AM 8° Mostly Cloudy 3% 16 mph N 58%
12 PM 8° Mostly Cloudy 3% 16 mph NNW 53%
1 PM 12° Partly Cloudy 3% 17 mph NNW 49%
2 PM 12° Partly Cloudy 3% 17 mph NNW 45%
3 PM 12° Partly Cloudy 3% 16 mph NNW 46%
4 PM 12° Partly Cloudy 3% 15 mph NNW 46%
5 PM 11° Partly Cloudy 3% 15 mph NNW 46%
6 PM 10° Partly Cloudy 3% 14 mph NNW 47%
7 PM 9° Partly Cloudy 3% 13 mph NNW 48%
8 PM 8° Partly Cloudy 3% 12 mph NNW 49%
9 PM 7° Clear 3% 11 mph NNW 51%
15-Day Forecast
Today
10/16
Mostly Cloudy
29%
7°
25°
Sat
10/17
Partly Cloudy
47%
2°
18°
Sun
10/18
Clear
3%
1°
17°
Mon
10/19
Clear
7%
2°
21°
Tue
10/20
Clear
3%
6°
23°
Wed
10/21
Clear
33%
4°
21°
Thu
10/22
Clear
34%
3°
19°
Fri
10/23
Partly Cloudy
3%
5°
22°
Sat
10/24
Clear
3%
4°
19°
Sun
10/25
Clear
3%
4°
21°
Mon
10/26
Clear
60%
4°
21°
Tue
10/27
Clear
60%
7°
20°
Wed
10/28
Clear
25%
6°
20°
Thu
10/29
Clear
25%
5°
19°
Fri
10/30
Drizzle
60%
6°
19°
36
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
28 AQI 5.2 µg/m³
O3
Ground-level ozone
Dominant
36 AQI 40 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 36 Good 36 28
Sun 29 Good 29 6
Mon 25 Good 25 12
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 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE8 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index7.3
Kinematics
0–6 km Shear71 kt
0–1 km Shear17 kt
Eff. Shear—
0–1 km SRH-142
0–3 km SRH-97
Eff. SRH—
Storm Motion259° @ 45 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index23.1
Thermo & Levels
PWAT1.19 in
0–3 km LR4.5 °C/km
700–500 LR5.5 °C/km
Total Totals34.6
LCL941 hPa
LFC—
EL—
Freezing Lvl11,535 ft