Hourly Weather Forecast - Mercersburg, PA

12 AM
30°F
0%
5mph
NW
Partly Cloudy
Humidity
68%
Feels like
24°F
Dew Point
21°F
1 AM
29°F
0%
6mph
NW
Mostly Cloudy
Humidity
71%
Feels like
23°F
Dew Point
21°F
2 AM
28°F
0%
5mph
NW
Cloudy
Humidity
73%
Feels like
22°F
Dew Point
21°F
3 AM
28°F
0%
5mph
NW
Cloudy
Humidity
74%
Feels like
22°F
Dew Point
21°F
4 AM
27°F
0%
5mph
NW
Cloudy
Humidity
74%
Feels like
22°F
Dew Point
20°F
5 AM
27°F
0%
5mph
NW
Mostly Cloudy
Humidity
73%
Feels like
21°F
Dew Point
20°F
6 AM
26°F
0%
5mph
NW
Mostly Cloudy
Humidity
74%
Feels like
21°F
Dew Point
19°F
7 AM
27°F
0%
5mph
NW
Partly Cloudy
Humidity
72%
Feels like
21°F
Dew Point
19°F
7:08 AM
8 AM
28°F
0%
6mph
NW
Partly Cloudy
Humidity
71%
Feels like
21°F
Dew Point
20°F
9 AM
29°F
0%
7mph
NW
Mostly Cloudy
Humidity
68%
Feels like
22°F
Dew Point
20°F
10 AM
31°F
0%
7mph
NW
Mostly Cloudy
Humidity
62%
Feels like
24°F
Dew Point
20°F
11 AM
32°F
10%
7mph
NW
Mostly Cloudy
Humidity
58%
Feels like
26°F
Dew Point
19°F
12 PM
34°F
10%
6mph
NW
Mostly Cloudy
Humidity
54%
Feels like
28°F
Dew Point
19°F
1 PM
35°F
10%
6mph
NW
Partly Cloudy
Humidity
52%
Feels like
29°F
Dew Point
19°F
2 PM
35°F
10%
5mph
NW
Partly Cloudy
Humidity
52%
Feels like
31°F
Dew Point
19°F
3 PM
36°F
10%
5mph
NW
Partly Cloudy
Humidity
51%
Feels like
31°F
Dew Point
19°F
4 PM
35°F
10%
5mph
NW
Partly Cloudy
Humidity
52%
Feels like
31°F
Dew Point
19°F
5 PM
34°F
10%
4mph
NW
Partly Cloudy
Humidity
56%
Feels like
30°F
Dew Point
20°F
5:44 PM
6 PM
32°F
10%
3mph
NW
Partly Cloudy
Humidity
62%
Feels like
28°F
Dew Point
20°F
7 PM
30°F
10%
3mph
NNW
Partly Cloudy
Humidity
66%
Feels like
27°F
Dew Point
20°F
8 PM
29°F
10%
4mph
NNW
Partly Cloudy
Humidity
72%
Feels like
25°F
Dew Point
21°F
9 PM
29°F
20%
4mph
NW
Partly Cloudy
Humidity
73%
Feels like
24°F
Dew Point
21°F
10 PM
28°F
20%
4mph
NW
Mostly Cloudy
Humidity
75%
Feels like
24°F
Dew Point
21°F
11 PM
28°F
20%
4mph
NNW
Cloudy
Humidity
76%
Feels like
23°F
Dew Point
21°F

Sunday Morning's Low Temperatures

Snow, Record-Breaking Cold Impacts Great Lakes & Northeast

Frigid temperatures, high winds, and snow headed to a large portion of the eastern U.S. through this weekend.

Weekend Weather Outlook

Weekend Weather Outlook

Image courtesy of Pixabay.com

All About Snow Squalls

Weekly Drought Map for February 5, 2026

Scarce Precipitation Leads to Widespread Drought Degradation

Image by Frauke Feind from Pixabay

During Strong Winds: Stay Ready

Windchill chart

Dangers of Wind Chills

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