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WeatherLive › Pennsylvania › South Williamsport

South Williamsport, PA Weather

Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherSouth Williamsport · 5:27 AM EDT
26° | 20°
21°C
Feels like 24°
Partly cloudy
WindSE 2 mph · Gusts 7 mph
Precip91% · 0.50 in
Humidity88% · Dew point 19°
UV index3 Moderate
Air Quality46 Good
Pressure30.03 inHg
Visibility0 mi
Sunrise / Sunset6:35 AM · 7:39 PM · 13h 4m

Weather map — South Williamsport

Full radar →
Now
21°
37%
2 mph
06:00
22°
30%
0 mph
07:00
21°
30%
2 mph
08:00
23°
25%
3 mph
09:00
25°
22%
1 mph
10:00
25°
25%
3 mph
11:00
26°
24%
4 mph
12:00
26°
23%
4 mph
13:00
26°
26%
6 mph
14:00
25°
0.03 in
6 mph
15:00
25°
0.21 in
2 mph
16:00
26°
0.06 in
3 mph
17:00
25°
0.04 in
3 mph
18:00
25°
0.02 in
3 mph
19:00
23°
0.05 in
7 mph
20:00
21°
49%
4 mph
21:00
21°
60%
4 mph
22:00
21°
50%
4 mph
23:00
20°
0.07 in
2 mph
00:00
20°
49%
2 mph
01:00
20°
0.07 in
0 mph
02:00
20°
0.04 in
3 mph
03:00
20°
0.09 in
2 mph
04:00
19°
0.06 in
3 mph

Today · Wed 9/2

High 26°
91% / 0.50 in

Showers. Winds SE at 7 mph.

Overnight · Wed 9/2

Low 21°
— / –

Showers.

Tomorrow · Thu 9/3

30° | 19°
90% / 1.05 in

Showers. Winds W at 9 mph.

7-day trend

South Williamsport · temperature + precipitation

10-day forecast

Updated 5:27 AM

Details & indices

Wind
2 mph SE
Gusts 7 mph
Humidity
88%
Dew point 19°
Pressure
30.03 inHg
Rising
UV index
3 — Moderate
High today
Air Quality
Good
AQI 46 · US EPA
Allergy
Low
Ragweed
Visibility
0 mi
Reduced
Allergy — South Williamsport

🌿 Conditions right now

View all →
Birch
None
Grass
Low
Oak
None
Alder
None
Hazel
None
Mugwort
Low
Ragweed
Low

Sun & moon

Sunrise6:35 AM
Sunset7:39 PM
Length of day13h 4m
Moonrise10:10 PM
Moonset12:44 PM
Moon phase🌖 Waning Gibbous · 71%
Next full moonSep 26 Harvest Moon
Latitude41.2320°N
Longitude-76.9991°E

Water temps nearby

View all →
No beaches within 50 miles
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Poor
Line-drying weather
Grilling
Fair
Fire up the grill
Running
Poor
Lace up outside
Patio
Fair
Dinner outdoors
Nearby places in {{REGION}}
Philadelphia
Heavy rain
22°
Pittsburgh
Sunny
23°
Data sources · Wednesday, September 2
Where the South Williamsport forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 41.2320°N, -76.9991°.
NBM + global weather models
Updated: 5:27 AM
Weather in South Williamsport
Over the next 10 days South Williamsport tops out around 32° (Friday) and dips to 6° on the coolest night (Wednesday). Models drop roughly 2.6 in of precipitation across the stretch — watch Tuesday (93%). Expect a blustery spell — gusts near 32 mph on Friday. No watches or warnings are active for the area right now. Right now South Williamsport is running about 51° warmer than New York. Longer view: classic Northeast mix — nor'easters, humid spells and a glorious fall.
South Williamsport, PA · Elev 522 ft · 41.23°N, 77.00°W · Pennsylvania · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 5:27 AM