Hourly Weather Forecast - Mercersburg, PA

12 AM
20°F
0%
9mph
WNW
Mostly Clear
Humidity
49%
Feels like
10°F
Dew Point
4°F
1 AM
20°F
0%
8mph
WNW
Clear
Humidity
50%
Feels like
10°F
Dew Point
4°F
2 AM
20°F
0%
7mph
WNW
Clear
Humidity
51%
Feels like
10°F
Dew Point
4°F
3 AM
19°F
0%
7mph
WNW
Clear
Humidity
52%
Feels like
10°F
Dew Point
4°F
4 AM
19°F
0%
6mph
WNW
Clear
Humidity
53%
Feels like
11°F
Dew Point
4°F
5 AM
19°F
0%
5mph
W
Clear
Humidity
56%
Feels like
12°F
Dew Point
6°F
6 AM
19°F
0%
4mph
W
Clear
Humidity
57%
Feels like
13°F
Dew Point
6°F
7 AM
20°F
0%
3mph
WSW
Clear
Humidity
59%
Feels like
15°F
Dew Point
8°F
7:30 AM
8 AM
22°F
0%
3mph
SW
Mostly Sunny
Humidity
57%
Feels like
22°F
Dew Point
9°F
9 AM
24°F
0%
3mph
SW
Partly Cloudy
Humidity
53%
Feels like
19°F
Dew Point
9°F
10 AM
26°F
10%
4mph
SW
Mostly Cloudy
Humidity
50%
Feels like
20°F
Dew Point
10°F
11 AM
28°F
20%
5mph
SSW
Mostly Cloudy
Humidity
46%
Feels like
22°F
Dew Point
10°F
12 PM
29°F
20%
6mph
S
Partly Cloudy
Humidity
44%
Feels like
23°F
Dew Point
10°F
1 PM
31°F
20%
6mph
S
Partly Cloudy
Humidity
42%
Feels like
24°F
Dew Point
10°F
2 PM
32°F
10%
6mph
S
Partly Cloudy
Humidity
39%
Feels like
25°F
Dew Point
10°F
3 PM
33°F
10%
7mph
S
Mostly Cloudy
Humidity
38%
Feels like
26°F
Dew Point
10°F
4 PM
33°F
10%
7mph
S
Cloudy
Humidity
38%
Feels like
26°F
Dew Point
10°F
5 PM
33°F
10%
6mph
S
Cloudy
Humidity
38%
Feels like
27°F
Dew Point
10°F
5:12 PM
6 PM
31°F
10%
6mph
S
Mostly Cloudy
Humidity
41%
Feels like
26°F
Dew Point
11°F
7 PM
31°F
10%
5mph
S
Partly Cloudy
Humidity
45%
Feels like
26°F
Dew Point
12°F
8 PM
30°F
0%
4mph
S
Partly Cloudy
Humidity
47%
Feels like
25°F
Dew Point
12°F
9 PM
29°F
0%
4mph
S
Partly Cloudy
Humidity
49%
Feels like
25°F
Dew Point
13°F
10 PM
29°F
0%
3mph
SSW
Partly Cloudy
Humidity
51%
Feels like
26°F
Dew Point
13°F
11 PM
29°F
0%
3mph
SSW
Partly Cloudy
Humidity
51%
Feels like
25°F
Dew Point
13°F

Wednesday's Weather Outlook

Wednesday's Weather Outlook

It will be a tale of two seasons on Wednesday, with cold, wintry weather in the East and dry, spring-like weather in the West.

(Image provided by NOAA)

Polar Vortex: What Is It?

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

(Image provided by Pixabay.com)

Before a High Wind Event

Windchill chart

Dangers of Wind Chills

A snow-covered trail in Sparkill, N.Y. (H. Martinez, WeatherBug user)

Top Winter Hiking Destinations

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