Hourly Weather Forecast - Greencastle, PA

12 AM
26°F
0%
7mph
NW
Partly Cloudy
Humidity
71%
Feels like
18°F
Dew Point
18°F
1 AM
26°F
0%
7mph
NW
Partly Cloudy
Humidity
71%
Feels like
18°F
Dew Point
18°F
2 AM
26°F
0%
6mph
NW
Partly Cloudy
Humidity
72%
Feels like
19°F
Dew Point
18°F
3 AM
25°F
0%
5mph
NW
Partly Cloudy
Humidity
72%
Feels like
19°F
Dew Point
17°F
4 AM
25°F
0%
4mph
NW
Partly Cloudy
Humidity
73%
Feels like
19°F
Dew Point
17°F
5 AM
24°F
0%
4mph
NW
Partly Cloudy
Humidity
74%
Feels like
19°F
Dew Point
17°F
6 AM
23°F
0%
4mph
WNW
Cloudy
Humidity
77%
Feels like
18°F
Dew Point
17°F
7 AM
24°F
0%
4mph
S
Cloudy
Humidity
77%
Feels like
19°F
Dew Point
17°F
7:32 AM
8 AM
25°F
0%
4mph
SSE
Mostly Cloudy
Humidity
73%
Feels like
21°F
Dew Point
17°F
9 AM
28°F
0%
4mph
SSE
Partly Cloudy
Humidity
66%
Feels like
23°F
Dew Point
18°F
10 AM
30°F
0%
5mph
SSE
Partly Cloudy
Humidity
61%
Feels like
25°F
Dew Point
19°F
11 AM
33°F
10%
7mph
S
Partly Cloudy
Humidity
56%
Feels like
26°F
Dew Point
19°F
12 PM
35°F
10%
9mph
S
Partly Cloudy
Humidity
52%
Feels like
27°F
Dew Point
19°F
1 PM
36°F
10%
10mph
S
Mostly Cloudy
Humidity
50%
Feels like
29°F
Dew Point
19°F
2 PM
37°F
10%
11mph
SSE
Cloudy
Humidity
48%
Feels like
30°F
Dew Point
20°F
3 PM
38°F
10%
11mph
SSE
Cloudy
Humidity
48%
Feels like
30°F
Dew Point
20°F
4 PM
37°F
0%
11mph
SSE
Cloudy
Humidity
50%
Feels like
29°F
Dew Point
20°F
5 PM
35°F
0%
10mph
SSE
Cloudy
Humidity
54%
Feels like
28°F
Dew Point
20°F
5:00 PM
6 PM
34°F
0%
9mph
SSE
Cloudy
Humidity
59%
Feels like
27°F
Dew Point
21°F
7 PM
33°F
0%
8mph
SSE
Mostly Cloudy
Humidity
61%
Feels like
26°F
Dew Point
21°F
8 PM
33°F
0%
8mph
SSE
Cloudy
Humidity
64%
Feels like
26°F
Dew Point
22°F
9 PM
33°F
0%
8mph
SSE
Cloudy
Humidity
66%
Feels like
26°F
Dew Point
23°F
10 PM
33°F
0%
8mph
S
Cloudy
Humidity
69%
Feels like
26°F
Dew Point
24°F
11 PM
33°F
0%
7mph
S
Cloudy
Humidity
71%
Feels like
27°F
Dew Point
25°F

Rain and Snow Totals Through Friday

2026 Opens with Heavy Rain, Mountain Snow in the West

Significant rain and heavy mountain snow will continue to batter California and the rest of the West for the first few days of 2026.

Friday's Weather Outlook

Extended Weekend Weather Outlook

St. Louis Tornado - May 16th, 2025

2025 Year in Review: Billion-Dollar Disasters From May through June

EF3 tornado damage near Plantersville, Alabama

2025 Year in Review: Billion-Dollar Disasters From February Through April

Photos and videos from the Palisades Fire that started in the City of Los Angeles, January 8, 2025. (CAL FIRE_Official via Wikimedia Commons)

2025 Year in Review: Billion Dollar Disasters - The California Wildfires

Large wall of dust approaching Phoenix Sky Harbor Airport at around 5:30 PM MST (Photo credit: Mike Olbinski via NWS)

2025 Year in Review: Extreme Weather - July Through December

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide