Hourly Weather Forecast - Greencastle, PA

12 AM
27°F
0%
6mph
S
Cloudy
Humidity
62%
Feels like
21°F
Dew Point
16°F
1 AM
27°F
0%
5mph
S
Cloudy
Humidity
63%
Feels like
21°F
Dew Point
16°F
2 AM
27°F
0%
5mph
S
Mostly Cloudy
Humidity
63%
Feels like
21°F
Dew Point
17°F
3 AM
28°F
0%
6mph
S
Mostly Cloudy
Humidity
64%
Feels like
21°F
Dew Point
17°F
4 AM
28°F
0%
6mph
S
Mostly Cloudy
Humidity
65%
Feels like
21°F
Dew Point
17°F
5 AM
28°F
0%
6mph
S
Partly Cloudy
Humidity
66%
Feels like
22°F
Dew Point
18°F
6 AM
28°F
0%
6mph
SSW
Mostly Cloudy
Humidity
68%
Feels like
21°F
Dew Point
19°F
7 AM
29°F
0%
6mph
SSW
Cloudy
Humidity
69%
Feels like
22°F
Dew Point
20°F
7:26 AM
8 AM
31°F
0%
7mph
SSW
Cloudy
Humidity
69%
Feels like
24°F
Dew Point
22°F
9 AM
34°F
0%
7mph
SSW
Mostly Cloudy
Humidity
66%
Feels like
28°F
Dew Point
24°F
10 AM
38°F
0%
8mph
SW
Mostly Cloudy
Humidity
62%
Feels like
32°F
Dew Point
26°F
11 AM
41°F
0%
9mph
SW
Mostly Cloudy
Humidity
58%
Feels like
35°F
Dew Point
28°F
12 PM
44°F
0%
10mph
WSW
Mostly Cloudy
Humidity
56%
Feels like
39°F
Dew Point
29°F
1 PM
46°F
0%
10mph
WSW
Cloudy
Humidity
55%
Feels like
41°F
Dew Point
31°F
2 PM
46°F
0%
10mph
WSW
Cloudy
Humidity
56%
Feels like
41°F
Dew Point
31°F
3 PM
45°F
0%
9mph
W
Cloudy
Humidity
60%
Feels like
41°F
Dew Point
32°F
4 PM
43°F
0%
8mph
W
Mostly Cloudy
Humidity
66%
Feels like
38°F
Dew Point
32°F
4:47 PM
5 PM
41°F
0%
7mph
W
Partly Cloudy
Humidity
71%
Feels like
36°F
Dew Point
32°F
6 PM
39°F
0%
6mph
W
Mostly Clear
Humidity
74%
Feels like
35°F
Dew Point
32°F
7 PM
38°F
0%
5mph
WNW
Clear
Humidity
76%
Feels like
34°F
Dew Point
31°F
8 PM
37°F
0%
5mph
NW
Clear
Humidity
79%
Feels like
33°F
Dew Point
31°F
9 PM
35°F
0%
5mph
NW
Clear
Humidity
81%
Feels like
31°F
Dew Point
30°F
10 PM
34°F
0%
5mph
NW
Clear
Humidity
82%
Feels like
30°F
Dew Point
29°F
11 PM
34°F
0%
5mph
NW
Clear
Humidity
82%
Feels like
29°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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