Hourly Weather Forecast - Duncannon, PA

9 AM
26°F
0%
8mph
NNE
Mostly Cloudy
Humidity
49%
Feels like
18°F
Dew Point
10°F
10 AM
26°F
0%
8mph
NNE
Mostly Cloudy
Humidity
46%
Feels like
18°F
Dew Point
8°F
11 AM
26°F
0%
7mph
NNE
Mostly Cloudy
Humidity
44%
Feels like
18°F
Dew Point
7°F
12 PM
26°F
0%
6mph
NNE
Mostly Cloudy
Humidity
41%
Feels like
19°F
Dew Point
6°F
1 PM
27°F
0%
6mph
NNE
Mostly Cloudy
Humidity
40%
Feels like
20°F
Dew Point
6°F
2 PM
27°F
0%
6mph
NNE
Mostly Cloudy
Humidity
38%
Feels like
20°F
Dew Point
5°F
3 PM
27°F
0%
5mph
NNE
Cloudy
Humidity
38%
Feels like
21°F
Dew Point
5°F
4 PM
27°F
0%
5mph
NNE
Mostly Cloudy
Humidity
39%
Feels like
21°F
Dew Point
5°F
4:41 PM
5 PM
26°F
0%
4mph
NNE
Mostly Cloudy
Humidity
39%
Feels like
21°F
Dew Point
5°F
6 PM
25°F
0%
3mph
NNE
Cloudy
Humidity
41%
Feels like
21°F
Dew Point
4°F
7 PM
24°F
0%
3mph
NNE
Mostly Cloudy
Humidity
43%
Feels like
24°F
Dew Point
5°F
8 PM
23°F
0%
2mph
NNE
Mostly Cloudy
Humidity
44%
Feels like
23°F
Dew Point
5°F
9 PM
23°F
0%
2mph
NNE
Mostly Cloudy
Humidity
45%
Feels like
23°F
Dew Point
5°F
10 PM
23°F
0%
2mph
N
Mostly Cloudy
Humidity
45%
Feels like
23°F
Dew Point
5°F
11 PM
22°F
0%
1mph
N
Mostly Cloudy
Humidity
46%
Feels like
22°F
Dew Point
5°F

Snowfall forecast Through Tonight

Snow To Spread Across Appalachians Into Mid-Atlantic

A winter system will bring snow from the southern Appalachians to Mid-Atlantic through this evening.

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

Image courtesy of PeakPX.

Top 10 Winter Energy Saving Tips

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

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Outdoor Sports Guide