Freeze Watch 8:00 AM

South Williamsport, Pennsylvania

Last updated: 9:09 PM CDT  ·  Refresh
13°C
Feels like 10°
Partly Cloudy
▲ 18°  /  ▼ 4°
Wind
9 mph NW
Humidity
82%
Dew Point
10°
Pressure
28.97 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
52%
Sunrise
7:20 AM
Sunset
6:25 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: South Williamsport is currently partly cloudy at 13°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:20AM · Sunset: 6:25PM.

Alerts

Freeze Watch
Expires 8:00 AM
31 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
13°
8%
11 PM
12°
16%
12 AM
11°
16%
1 AM
9°
17%
2 AM
8°
15%
3 AM
7°
15%
4 AM
7°
25%
5 AM
6°
17%
6 AM
6°
30%
7 AM
5°
15%
8 AM
4°
3%
9 AM
4°
3%
10 AM
4°
3%
11 AM
4°
3%
12 PM
5°
3%
1 PM
8°
3%
2 PM
9°
3%
3 PM
9°
3%
4 PM
9°
3%
5 PM
8°
3%
6 PM
7°
3%
7 PM
7°
3%
8 PM
6°
3%
9 PM
5°
3%
7-Day Forecast
Tonight
18° 4°
Partly Cloudy.
Sat
14° 1°
Partly Cloudy with a 25% chance of rain.
Sun
17° 1°
Clear.
Mon
21° 2°
Mostly Clear.
Tue
21° 4°
Clear.
Wed
19° 3°
Partly Cloudy.
Thu
19° 2°
Mostly Clear.
TimeTempConditionsPrecipWindHumidity
Now 13° Partly Cloudy 8% 9 mph NW 82%
11 PM 12° Partly Cloudy 16% 8 mph NW 82%
12 AM 11° Mostly Cloudy 16% 9 mph NNW 80%
1 AM 9° Partly Cloudy 17% 10 mph NNW 78%
2 AM 8° Partly Cloudy 15% 9 mph NNW 77%
3 AM 7° Mostly Cloudy 15% 9 mph NNW 77%
4 AM 7° Overcast 25% 10 mph NNW 77%
5 AM 6° Overcast 17% 10 mph NNW 77%
6 AM 6° Overcast 30% 9 mph NNW 76%
7 AM 5° Mostly Cloudy 15% 10 mph NNW 75%
8 AM 4° Mostly Cloudy 3% 10 mph NNW 74%
9 AM 4° Mostly Cloudy 3% 11 mph NNW 69%
10 AM 4° Mostly Cloudy 3% 11 mph NNW 64%
11 AM 4° Partly Cloudy 3% 12 mph NNW 59%
12 PM 5° Partly Cloudy 3% 11 mph NNW 55%
1 PM 8° Partly Cloudy 3% 11 mph NNW 51%
2 PM 9° Partly Cloudy 3% 11 mph NNW 47%
3 PM 9° Mostly Clear 3% 10 mph NNW 45%
4 PM 9° Mostly Clear 3% 10 mph NNW 43%
5 PM 8° Mostly Clear 3% 9 mph NNW 43%
6 PM 7° Clear 3% 8 mph NNW 46%
7 PM 7° Clear 3% 7 mph NNW 49%
8 PM 6° Clear 3% 6 mph NNW 52%
9 PM 5° Clear 3% 4 mph NNW 54%
15-Day Forecast
Today
10/16
Partly Cloudy
8%
4°
18°
Sat
10/17
Partly Cloudy
25%
1°
14°
Sun
10/18
Clear
3%
1°
17°
Mon
10/19
Mostly Clear
3%
2°
21°
Tue
10/20
Clear
3%
4°
21°
Wed
10/21
Partly Cloudy
3%
3°
19°
Thu
10/22
Mostly Clear
3%
2°
19°
Fri
10/23
Clear
3%
4°
20°
Sat
10/24
Clear
3%
3°
19°
Sun
10/25
Partly Cloudy
3%
3°
19°
Mon
10/26
Clear
25%
3°
18°
Tue
10/27
Clear
25%
5°
18°
Wed
10/28
Clear
60%
4°
17°
Thu
10/29
Clear
60%
3°
16°
Fri
10/30
Drizzle
60%
3°
16°
31
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
31 AQI 5.6 µg/m³
O3
Ground-level ozone
26 AQI 28 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 31 Good 26 31
Sun 31 Good 31 3
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
MLCAPE2 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index9.5
Kinematics
0–6 km Shear78 kt
0–1 km Shear24 kt
Eff. Shear—
0–1 km SRH-211
0–3 km SRH-164
Eff. SRH—
Storm Motion259° @ 55 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index19.0
Thermo & Levels
PWAT0.85 in
0–3 km LR4.2 °C/km
700–500 LR5.5 °C/km
Total Totals36.6
LCL933 hPa
LFC—
EL—
Freezing Lvl9,967 ft