Hourly Weather Forecast - South Williamsport, PA

1 PM
20°F
0%
14mph
NW
Mostly Cloudy
Humidity
58%
Feels like
7°F
Dew Point
8°F
2 PM
20°F
0%
14mph
NW
Mostly Cloudy
Humidity
57%
Feels like
7°F
Dew Point
8°F
3 PM
20°F
0%
14mph
NW
Partly Cloudy
Humidity
58%
Feels like
6°F
Dew Point
7°F
4 PM
19°F
0%
14mph
WNW
Partly Cloudy
Humidity
60%
Feels like
5°F
Dew Point
7°F
4:39 PM
5 PM
18°F
0%
14mph
NW
Mostly Clear
Humidity
62%
Feels like
4°F
Dew Point
7°F
6 PM
18°F
0%
14mph
NW
Mostly Clear
Humidity
65%
Feels like
4°F
Dew Point
8°F
7 PM
17°F
0%
14mph
NW
Mostly Clear
Humidity
69%
Feels like
3°F
Dew Point
9°F
8 PM
16°F
0%
14mph
NW
Mostly Clear
Humidity
70%
Feels like
2°F
Dew Point
8°F
9 PM
15°F
0%
13mph
NW
Mostly Clear
Humidity
72%
Feels like
0°F
Dew Point
7°F
10 PM
14°F
0%
13mph
WNW
Partly Cloudy
Humidity
74%
Feels like
0°F
Dew Point
7°F
11 PM
13°F
0%
13mph
WNW
Partly Cloudy
Humidity
74%
Feels like
-1°F
Dew Point
6°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Sunday Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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