Hourly Weather Forecast - Mercersburg, PA

12 AM
19°F
10%
7mph
WNW
Cloudy
Humidity
48%
Feels like
10°F
Dew Point
3°F
1 AM
19°F
10%
7mph
WNW
Cloudy
Humidity
50%
Feels like
10°F
Dew Point
3°F
2 AM
19°F
10%
6mph
WNW
Partly Cloudy
Humidity
51%
Feels like
10°F
Dew Point
3°F
3 AM
18°F
0%
6mph
WNW
Mostly Clear
Humidity
52%
Feels like
10°F
Dew Point
4°F
4 AM
18°F
0%
5mph
W
Clear
Humidity
53%
Feels like
10°F
Dew Point
3°F
5 AM
17°F
0%
4mph
W
Clear
Humidity
55%
Feels like
10°F
Dew Point
4°F
6 AM
16°F
0%
4mph
W
Clear
Humidity
56%
Feels like
10°F
Dew Point
3°F
7 AM
16°F
0%
3mph
W
Clear
Humidity
55%
Feels like
11°F
Dew Point
3°F
7:30 AM
8 AM
18°F
0%
4mph
W
Sunny
Humidity
52%
Feels like
12°F
Dew Point
3°F
9 AM
20°F
0%
4mph
WSW
Sunny
Humidity
48%
Feels like
15°F
Dew Point
4°F
10 AM
23°F
10%
4mph
WSW
Sunny
Humidity
45%
Feels like
17°F
Dew Point
5°F
11 AM
25°F
30%
5mph
SW
30% Chance Frozen Mix
Humidity
42%
Feels like
19°F
Dew Point
5°F
12 PM
27°F
30%
6mph
SSW
30% Chance Frozen Mix
Humidity
40%
Feels like
21°F
Dew Point
6°F
1 PM
29°F
30%
6mph
SSW
30% Chance Frozen Mix
Humidity
37%
Feels like
22°F
Dew Point
6°F
2 PM
30°F
30%
7mph
S
30% Chance Frozen Mix
Humidity
36%
Feels like
23°F
Dew Point
6°F
3 PM
31°F
30%
7mph
S
30% Chance Frozen Mix
Humidity
37%
Feels like
24°F
Dew Point
8°F
4 PM
31°F
20%
8mph
S
Mostly Cloudy
Humidity
38%
Feels like
24°F
Dew Point
8°F
5 PM
30°F
10%
7mph
S
Partly Cloudy
Humidity
38%
Feels like
23°F
Dew Point
8°F
5:12 PM
6 PM
29°F
10%
6mph
S
Partly Cloudy
Humidity
43%
Feels like
23°F
Dew Point
10°F
7 PM
28°F
0%
6mph
S
Mostly Clear
Humidity
48%
Feels like
22°F
Dew Point
11°F
8 PM
28°F
0%
5mph
S
Mostly Clear
Humidity
51%
Feels like
22°F
Dew Point
12°F
9 PM
27°F
0%
5mph
S
Mostly Clear
Humidity
54%
Feels like
21°F
Dew Point
13°F
10 PM
26°F
0%
4mph
SSW
Mostly Clear
Humidity
56%
Feels like
21°F
Dew Point
13°F
11 PM
26°F
0%
4mph
SSW
Partly Cloudy
Humidity
57%
Feels like
21°F
Dew Point
13°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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