Hourly Weather Forecast - Greencastle, PA

12 AM
37°F
0%
10mph
S
Mostly Clear
Humidity
65%
Feels like
29°F
Dew Point
26°F
1 AM
36°F
0%
9mph
SSW
Mostly Clear
Humidity
66%
Feels like
29°F
Dew Point
26°F
2 AM
36°F
0%
9mph
SSW
Mostly Clear
Humidity
69%
Feels like
30°F
Dew Point
27°F
3 AM
36°F
0%
8mph
SW
Partly Cloudy
Humidity
70%
Feels like
30°F
Dew Point
28°F
4 AM
36°F
0%
8mph
WSW
Partly Cloudy
Humidity
71%
Feels like
30°F
Dew Point
28°F
5 AM
37°F
0%
9mph
WSW
Partly Cloudy
Humidity
71%
Feels like
30°F
Dew Point
28°F
6 AM
37°F
0%
10mph
W
Partly Cloudy
Humidity
70%
Feels like
30°F
Dew Point
29°F
7 AM
38°F
0%
11mph
W
Partly Cloudy
Humidity
66%
Feels like
31°F
Dew Point
28°F
7:28 AM
8 AM
39°F
0%
13mph
W
Mostly Sunny
Humidity
62%
Feels like
31°F
Dew Point
27°F
9 AM
40°F
0%
16mph
W
Mostly Sunny
Humidity
58%
Feels like
31°F
Dew Point
26°F
10 AM
41°F
0%
17mph
W
Sunny
Humidity
54%
Feels like
32°F
Dew Point
26°F
11 AM
42°F
0%
19mph
W
Sunny
Humidity
50%
Feels like
34°F
Dew Point
25°F
12 PM
44°F
0%
20mph
W
Sunny
Humidity
46%
Feels like
35°F
Dew Point
24°F
1 PM
44°F
0%
20mph
W
Sunny
Humidity
44%
Feels like
35°F
Dew Point
23°F
2 PM
42°F
0%
20mph
WNW
Windy
Humidity
43%
Feels like
33°F
Dew Point
21°F
3 PM
39°F
0%
20mph
WNW
Sunny
Humidity
44%
Feels like
30°F
Dew Point
20°F
4 PM
36°F
0%
19mph
WNW
Sunny
Humidity
47%
Feels like
26°F
Dew Point
18°F
4:49 PM
5 PM
33°F
0%
18mph
WNW
Clear
Humidity
50%
Feels like
22°F
Dew Point
17°F
6 PM
31°F
0%
17mph
WNW
Clear
Humidity
52%
Feels like
20°F
Dew Point
16°F
7 PM
29°F
0%
16mph
NW
Clear
Humidity
53%
Feels like
18°F
Dew Point
15°F
8 PM
28°F
0%
15mph
NW
Clear
Humidity
55%
Feels like
17°F
Dew Point
14°F
9 PM
27°F
0%
15mph
NW
Clear
Humidity
56%
Feels like
15°F
Dew Point
13°F
10 PM
26°F
0%
14mph
WNW
Clear
Humidity
56%
Feels like
15°F
Dew Point
13°F
11 PM
26°F
0%
13mph
WNW
Clear
Humidity
56%
Feels like
15°F
Dew Point
13°F

Forecast Peak Wind Gusts Today

High Winds, Rain, and Snow Cross the Country

A clipper moving over the Great Lakes brings rain, snow, and high winds through the Atlantic Coastline.

Rainfall and Snowfall Totals Through Friday

Atmospheric River Symptoms Repeat in the Northwest

Thursday's Weather Outlook

Today's Weather Outlook

Flu Update Valid For Week Ending December 6, 2025

Weekly Flu Update: Flu Exceeds Annual Baseline

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

How to Measure Snow via NWS

How To Measure Snow

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