Hourly Weather Forecast - Mercersburg, PA

12 AM
26°F
10%
5mph
W
Cloudy
Humidity
58%
Feels like
19°F
Dew Point
13°F
1 AM
25°F
10%
5mph
WNW
Cloudy
Humidity
55%
Feels like
19°F
Dew Point
11°F
2 AM
25°F
10%
5mph
W
Cloudy
Humidity
53%
Feels like
18°F
Dew Point
10°F
3 AM
24°F
0%
5mph
W
Cloudy
Humidity
51%
Feels like
18°F
Dew Point
9°F
4 AM
23°F
0%
5mph
W
Cloudy
Humidity
49%
Feels like
17°F
Dew Point
7°F
5 AM
22°F
10%
4mph
W
Cloudy
Humidity
50%
Feels like
16°F
Dew Point
7°F
6 AM
21°F
10%
4mph
W
Cloudy
Humidity
50%
Feels like
15°F
Dew Point
6°F
7 AM
21°F
10%
4mph
W
Cloudy
Humidity
50%
Feels like
15°F
Dew Point
5°F
7:30 AM
8 AM
22°F
10%
4mph
W
Cloudy
Humidity
49%
Feels like
15°F
Dew Point
6°F
9 AM
23°F
10%
5mph
W
Cloudy
Humidity
45%
Feels like
17°F
Dew Point
5°F
10 AM
25°F
10%
6mph
W
Cloudy
Humidity
45%
Feels like
18°F
Dew Point
6°F
11 AM
26°F
10%
6mph
W
Cloudy
Humidity
43%
Feels like
19°F
Dew Point
7°F
12 PM
27°F
10%
6mph
W
Cloudy
Humidity
43%
Feels like
20°F
Dew Point
7°F
1 PM
28°F
10%
7mph
W
Cloudy
Humidity
42%
Feels like
20°F
Dew Point
7°F
2 PM
28°F
10%
7mph
W
Cloudy
Humidity
40%
Feels like
20°F
Dew Point
7°F
3 PM
28°F
10%
6mph
W
Cloudy
Humidity
39%
Feels like
21°F
Dew Point
6°F
4 PM
27°F
10%
6mph
W
Cloudy
Humidity
38%
Feels like
20°F
Dew Point
5°F
5 PM
26°F
10%
6mph
WNW
Mostly Cloudy
Humidity
39%
Feels like
20°F
Dew Point
5°F
5:14 PM
6 PM
25°F
10%
5mph
WNW
Partly Cloudy
Humidity
42%
Feels like
19°F
Dew Point
6°F
7 PM
24°F
10%
4mph
WNW
Partly Cloudy
Humidity
47%
Feels like
18°F
Dew Point
7°F
8 PM
23°F
10%
4mph
WNW
Partly Cloudy
Humidity
49%
Feels like
18°F
Dew Point
7°F
9 PM
22°F
10%
4mph
WNW
Partly Cloudy
Humidity
50%
Feels like
17°F
Dew Point
7°F
10 PM
22°F
10%
4mph
WNW
Mostly Clear
Humidity
52%
Feels like
16°F
Dew Point
6°F
11 PM
21°F
10%
4mph
WNW
Mostly Clear
Humidity
52%
Feels like
16°F
Dew Point
6°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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