Hourly Weather Forecast - South Williamsport, PA

12 AM
20°F
0%
5mph
SSE
Partly Cloudy
Humidity
89%
Feels like
13°F
Dew Point
17°F
1 AM
19°F
0%
5mph
S
Mostly Cloudy
Humidity
91%
Feels like
12°F
Dew Point
17°F
2 AM
19°F
0%
5mph
S
Mostly Cloudy
Humidity
91%
Feels like
12°F
Dew Point
17°F
3 AM
19°F
0%
5mph
S
Mostly Cloudy
Humidity
93%
Feels like
12°F
Dew Point
17°F
4 AM
20°F
0%
5mph
S
Mostly Cloudy
Humidity
92%
Feels like
13°F
Dew Point
18°F
5 AM
21°F
0%
5mph
SSE
Partly Cloudy
Humidity
91%
Feels like
14°F
Dew Point
19°F
6 AM
22°F
0%
5mph
SSE
Partly Cloudy
Humidity
90%
Feels like
16°F
Dew Point
20°F
7 AM
25°F
0%
5mph
S
Mostly Cloudy
Humidity
88%
Feels like
19°F
Dew Point
22°F
7:27 AM
8 AM
28°F
0%
5mph
S
Mostly Cloudy
Humidity
88%
Feels like
22°F
Dew Point
25°F
9 AM
32°F
0%
5mph
SSW
Cloudy
Humidity
86%
Feels like
27°F
Dew Point
29°F
10 AM
36°F
0%
6mph
SW
Cloudy
Humidity
85%
Feels like
30°F
Dew Point
31°F
11 AM
38°F
0%
8mph
WSW
Cloudy
Humidity
84%
Feels like
32°F
Dew Point
33°F
12 PM
39°F
0%
10mph
WSW
Cloudy
Humidity
81%
Feels like
33°F
Dew Point
34°F
1 PM
40°F
0%
11mph
WSW
Cloudy
Humidity
81%
Feels like
33°F
Dew Point
34°F
2 PM
40°F
0%
11mph
W
Mostly Cloudy
Humidity
82%
Feels like
33°F
Dew Point
35°F
3 PM
39°F
0%
10mph
W
Mostly Cloudy
Humidity
84%
Feels like
32°F
Dew Point
34°F
4 PM
38°F
0%
9mph
W
Mostly Cloudy
Humidity
86%
Feels like
32°F
Dew Point
34°F
4:40 PM
5 PM
37°F
0%
8mph
W
Mostly Cloudy
Humidity
90%
Feels like
31°F
Dew Point
34°F
6 PM
36°F
0%
7mph
W
Mostly Cloudy
Humidity
90%
Feels like
30°F
Dew Point
34°F
7 PM
35°F
0%
6mph
WNW
Mostly Cloudy
Humidity
91%
Feels like
30°F
Dew Point
33°F
8 PM
34°F
0%
5mph
WNW
Mostly Cloudy
Humidity
93%
Feels like
29°F
Dew Point
32°F
9 PM
32°F
0%
4mph
W
Mostly Cloudy
Humidity
94%
Feels like
29°F
Dew Point
31°F
10 PM
31°F
0%
3mph
W
Mostly Cloudy
Humidity
98%
Feels like
27°F
Dew Point
30°F
11 PM
30°F
0%
3mph
W
Mostly Cloudy
Humidity
97%
Feels like
30°F
Dew Point
29°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

Monday's Weather Outlook

Monday'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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