Hourly Weather Forecast - Mechanicsburg, PA

12 AM
40°F
0%
7mph
WNW
Mostly Cloudy
Humidity
81%
Feels like
35°F
Dew Point
35°F
1 AM
40°F
0%
8mph
WNW
Mostly Cloudy
Humidity
77%
Feels like
35°F
Dew Point
33°F
2 AM
40°F
0%
8mph
WNW
Cloudy
Humidity
73%
Feels like
35°F
Dew Point
32°F
3 AM
40°F
0%
9mph
NW
Cloudy
Humidity
71%
Feels like
34°F
Dew Point
31°F
4 AM
39°F
0%
9mph
NW
Cloudy
Humidity
70%
Feels like
33°F
Dew Point
30°F
5 AM
38°F
0%
9mph
NW
Cloudy
Humidity
71%
Feels like
31°F
Dew Point
29°F
6 AM
36°F
0%
8mph
NW
Mostly Cloudy
Humidity
74%
Feels like
29°F
Dew Point
28°F
7 AM
35°F
0%
8mph
NW
Mostly Cloudy
Humidity
76%
Feels like
28°F
Dew Point
28°F
7:28 AM
8 AM
35°F
0%
8mph
NW
Mostly Cloudy
Humidity
74%
Feels like
28°F
Dew Point
28°F
9 AM
37°F
0%
8mph
NW
Partly Cloudy
Humidity
68%
Feels like
31°F
Dew Point
28°F
10 AM
40°F
0%
8mph
NW
Partly Cloudy
Humidity
62%
Feels like
34°F
Dew Point
28°F
11 AM
42°F
0%
8mph
NW
Partly Cloudy
Humidity
58%
Feels like
37°F
Dew Point
28°F
12 PM
42°F
0%
7mph
NW
Partly Cloudy
Humidity
56%
Feels like
38°F
Dew Point
28°F
1 PM
43°F
0%
6mph
NW
Partly Cloudy
Humidity
54%
Feels like
40°F
Dew Point
28°F
2 PM
44°F
0%
5mph
NW
Mostly Sunny
Humidity
52%
Feels like
41°F
Dew Point
28°F
3 PM
44°F
0%
4mph
NW
Mostly Sunny
Humidity
52%
Feels like
42°F
Dew Point
28°F
4 PM
42°F
0%
2mph
NW
Mostly Sunny
Humidity
56%
Feels like
42°F
Dew Point
28°F
4:46 PM
5 PM
39°F
0%
2mph
NW
Mostly Clear
Humidity
62%
Feels like
39°F
Dew Point
28°F
6 PM
37°F
0%
1mph
N
Partly Cloudy
Humidity
68%
Feels like
37°F
Dew Point
28°F
7 PM
36°F
0%
0mph
ESE
Partly Cloudy
Humidity
71%
Feels like
36°F
Dew Point
28°F
8 PM
35°F
10%
0mph
ESE
Partly Cloudy
Humidity
73%
Feels like
35°F
Dew Point
28°F
9 PM
35°F
10%
0mph
SE
Partly Cloudy
Humidity
75%
Feels like
35°F
Dew Point
28°F
10 PM
34°F
0%
0mph
SE
Partly Cloudy
Humidity
76%
Feels like
34°F
Dew Point
27°F
11 PM
33°F
0%
0mph
SE
Mostly Cloudy
Humidity
78%
Feels like
33°F
Dew Point
27°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

White Christmas? What Are The Odds

Sunday's Weather Outlook

Sunday's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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