Hourly Weather Forecast - Greencastle, PA

12 AM
43°F
30%
10mph
NNW
30% Chance Rain Showers
Humidity
76%
Feels like
37°F
Dew Point
36°F
1 AM
42°F
30%
9mph
N
30% Chance Rain Showers
Humidity
77%
Feels like
37°F
Dew Point
35°F
2 AM
42°F
30%
9mph
N
30% Chance Rain Showers
Humidity
81%
Feels like
36°F
Dew Point
36°F
3 AM
41°F
30%
8mph
N
30% Chance Rain Showers
Humidity
82%
Feels like
36°F
Dew Point
36°F
4 AM
40°F
30%
8mph
NNE
30% Chance Rain Showers
Humidity
84%
Feels like
35°F
Dew Point
36°F
5 AM
40°F
30%
7mph
NNE
30% Chance Rain Showers
Humidity
86%
Feels like
35°F
Dew Point
36°F

Rain And Snow Totals Through Monday

Atmospheric River Impacts Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California through Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

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Today's Weather Outlook

Today's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

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Watch vs. Warning

Flash Flood Watch and Warning Defined

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