Hourly Weather Forecast - Mercersburg, PA

12 AM
13°F
20%
2mph
N
Clear
Humidity
56%
Feels like
13°F
Dew Point
0°F
1 AM
12°F
20%
2mph
N
Clear
Humidity
58%
Feels like
12°F
Dew Point
0°F
2 AM
12°F
30%
2mph
N
30% Chance Snow Showers
Humidity
61%
Feels like
12°F
Dew Point
1°F
3 AM
11°F
30%
2mph
N
30% Chance Snow Showers
Humidity
65%
Feels like
11°F
Dew Point
2°F

Snow Forecast through Sunday

Unrelenting Storm Track Brings Snow to Great Lakes & Eastern U.S.

Two main areas of low pressure will produce snow in the Upper Midwest, Great Lakes and Eastern U.S.

Monday's Weather Outlook

Monday's Weather Outlook

Weekly Drought Map for January 15, 2026

Active Weather Creates Mix of Improvements, Degradations to Drought Depiction

Vehicle driving in wintry conditions

Prepare Your Car for Cold 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

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