Hourly Weather Forecast - Harmonsburg, PA

10 AM
23°F
10%
12mph
W
Mostly Cloudy
Humidity
85%
Feels like
11°F
Dew Point
19°F
11 AM
23°F
70%
13mph
W
70% Chance of Heavy Snow
Humidity
83%
Feels like
11°F
Dew Point
19°F
12 PM
24°F
20%
13mph
W
Mostly Cloudy
Humidity
81%
Feels like
12°F
Dew Point
19°F
1 PM
24°F
20%
13mph
W
Mostly Cloudy
Humidity
80%
Feels like
12°F
Dew Point
19°F
2 PM
24°F
20%
13mph
W
Cloudy
Humidity
80%
Feels like
12°F
Dew Point
19°F
3 PM
24°F
30%
13mph
W
30% Chance of Snow
Humidity
80%
Feels like
13°F
Dew Point
19°F
4 PM
24°F
30%
12mph
W
30% Chance of Heavy Snow
Humidity
81%
Feels like
13°F
Dew Point
19°F
4:50 PM
5 PM
24°F
30%
11mph
W
30% Chance of Snow
Humidity
83%
Feels like
13°F
Dew Point
19°F
6 PM
23°F
20%
10mph
W
Mostly Cloudy
Humidity
84%
Feels like
13°F
Dew Point
19°F
7 PM
23°F
30%
10mph
W
30 % Chance of Heavy Snow
Humidity
86%
Feels like
13°F
Dew Point
20°F
8 PM
23°F
20%
9mph
W
Mostly Cloudy
Humidity
86%
Feels like
14°F
Dew Point
20°F
9 PM
23°F
20%
9mph
W
Cloudy
Humidity
87%
Feels like
14°F
Dew Point
20°F
10 PM
24°F
20%
8mph
W
Cloudy
Humidity
87%
Feels like
14°F
Dew Point
20°F
11 PM
23°F
20%
8mph
W
Cloudy
Humidity
88%
Feels like
14°F
Dew Point
20°F

Snowfall forecast through Saturday A.M.

More Snow Across the Northern U.S. into the Midwest

The parade of snow will continue across the northern U.S. and Midwest through the end of the week.

Rainfall Forecast for Northwest through Friday A.M.

Rains Finally Easing Across the Northwest

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

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Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide