Hourly Weather Forecast - Mercersburg, PA

10 AM
29°F
0%
10mph
W
Partly Cloudy
Humidity
59%
Feels like
20°F
Dew Point
16°F
11 AM
30°F
10%
10mph
W
Partly Cloudy
Humidity
53%
Feels like
21°F
Dew Point
15°F
12 PM
31°F
0%
10mph
W
Partly Cloudy
Humidity
50%
Feels like
23°F
Dew Point
15°F
1 PM
32°F
0%
9mph
W
Mostly Cloudy
Humidity
48%
Feels like
24°F
Dew Point
15°F
2 PM
33°F
10%
9mph
W
Mostly Cloudy
Humidity
44%
Feels like
25°F
Dew Point
13°F
3 PM
33°F
30%
9mph
W
30% Chance of Heavy Snow
Humidity
44%
Feels like
25°F
Dew Point
14°F
4 PM
33°F
10%
10mph
W
Mostly Cloudy
Humidity
45%
Feels like
25°F
Dew Point
14°F
5 PM
32°F
30%
9mph
W
30% Chance of Heavy Snow
Humidity
42%
Feels like
24°F
Dew Point
12°F
6 PM
31°F
0%
9mph
W
Partly Cloudy
Humidity
43%
Feels like
23°F
Dew Point
11°F
7 PM
29°F
0%
7mph
WNW
Mostly Sunny
Humidity
45%
Feels like
22°F
Dew Point
11°F
7:20 PM
8 PM
28°F
0%
6mph
WNW
Mostly Clear
Humidity
48%
Feels like
21°F
Dew Point
10°F
9 PM
27°F
0%
6mph
WNW
Mostly Clear
Humidity
49%
Feels like
20°F
Dew Point
10°F
10 PM
26°F
0%
5mph
WNW
Mostly Clear
Humidity
51%
Feels like
20°F
Dew Point
10°F
11 PM
25°F
0%
4mph
WNW
Mostly Clear
Humidity
54%
Feels like
20°F
Dew Point
11°F

Tuesday's Weather Outlook

Today's Weather Outlook

Unsettled weather begins to fizzle out today as dry weather spreads throughout more regions of the country.

Story image: WeatherBug user Pat S. captures a plant blooming in Columbia, Md., on February 24, 2017.

When Does Spring Begin?

A tree knocked over after a storm produced high winds. (provided by PublicDomainPictures via Pixabay.com)

Strong Winds in the Springtime

The 2011 St. Patrick's Day Parade in Hornell, New York. (Marduk via Wikimedia Commons)

The History of St. Patrick's Day

Weekly Drought Map for March 12, 2026

Widespread Drought Improvement For The South, Midwest

Blizzard: Its True Definition

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide