Hourly Weather Forecast - Mercersburg, PA

12 AM
26°F
10%
4mph
SSW
Partly Cloudy
Humidity
57%
Feels like
22°F
Dew Point
13°F
1 AM
26°F
10%
3mph
SSW
Partly Cloudy
Humidity
59%
Feels like
22°F
Dew Point
13°F
2 AM
25°F
10%
3mph
SSW
Partly Cloudy
Humidity
61%
Feels like
25°F
Dew Point
14°F
3 AM
25°F
10%
3mph
SSW
Mostly Clear
Humidity
63%
Feels like
25°F
Dew Point
14°F
4 AM
25°F
10%
3mph
SSW
Mostly Clear
Humidity
65%
Feels like
25°F
Dew Point
15°F
5 AM
24°F
10%
3mph
S
Partly Cloudy
Humidity
67%
Feels like
24°F
Dew Point
15°F
6 AM
24°F
10%
3mph
S
Mostly Cloudy
Humidity
67%
Feels like
24°F
Dew Point
15°F
7 AM
25°F
10%
3mph
S
Cloudy
Humidity
65%
Feels like
21°F
Dew Point
15°F
7:30 AM
8 AM
27°F
10%
4mph
S
Mostly Cloudy
Humidity
64%
Feels like
23°F
Dew Point
17°F
9 AM
30°F
10%
4mph
S
Partly Cloudy
Humidity
61%
Feels like
25°F
Dew Point
18°F
10 AM
33°F
10%
6mph
SSW
Partly Cloudy
Humidity
56%
Feels like
27°F
Dew Point
19°F
11 AM
35°F
30%
6mph
SSW
30% Chance Snow Showers
Humidity
51%
Feels like
29°F
Dew Point
19°F
12 PM
37°F
30%
7mph
SSW
30% Chance Rain Showers
Humidity
46%
Feels like
31°F
Dew Point
18°F
1 PM
38°F
30%
7mph
SSW
30% Chance of Light Rain
Humidity
43%
Feels like
33°F
Dew Point
18°F
2 PM
38°F
30%
7mph
SSW
30% Chance of Light Rain
Humidity
43%
Feels like
33°F
Dew Point
18°F
3 PM
38°F
30%
7mph
SSW
30% Chance of Flurries
Humidity
44%
Feels like
32°F
Dew Point
18°F
4 PM
37°F
30%
7mph
SSW
30% Chance of Flurries
Humidity
46%
Feels like
31°F
Dew Point
18°F
5 PM
35°F
30%
6mph
SW
30% Chance of Flurries
Humidity
50%
Feels like
30°F
Dew Point
19°F
5:13 PM
6 PM
33°F
40%
4mph
WSW
40% Chance Snow Showers
Humidity
59%
Feels like
29°F
Dew Point
20°F
7 PM
31°F
40%
3mph
W
40% Chance Snow Showers
Humidity
66%
Feels like
29°F
Dew Point
21°F
8 PM
30°F
40%
3mph
W
40% Chance Snow Showers
Humidity
68%
Feels like
30°F
Dew Point
21°F
9 PM
29°F
30%
3mph
W
30% Chance Snow Showers
Humidity
69%
Feels like
29°F
Dew Point
20°F
10 PM
28°F
30%
4mph
W
30% Chance Snow Showers
Humidity
67%
Feels like
24°F
Dew Point
19°F
11 PM
28°F
20%
4mph
W
Partly Cloudy
Humidity
63%
Feels like
23°F
Dew Point
17°F

Tuesday's Weather Outlook

Tuesday's Weather Outlook

Rain and snow showers will sweep thru the Great Lakes as the Western U.S. begins a pattern of quiet and dry weather.

(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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