Duncannon, PA Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Duncannon, PA in one place.
Mostly cloudy, with a low around 54. North wind around 7 mph.
Local Weather Overview
This forecast page for Duncannon, PA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 15, 2026 3:27 AM EDT.
The active forecast window currently covers Oct 15 to Oct 21, 2026 for Duncannon, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 3:27 AM EDT
- Forecast office
- CTP
- Source
- NOAA / NWS
Daily Outlook
This Week in Duncannon
Friday looks like the warmest upcoming period in Duncannon at 79 degrees F.
Saturday Night is the coolest period ahead with temperatures near 33 degrees F.
The strongest winds are forecast for Friday Night at about 12 to 15 mph NW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 3:27 AM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- CTP
- Radar station
- KCCX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly sunny, with a high near 64. East wind 2 to 6 mph.
A chance of rain between 11pm and 2am, then rain likely and a slight chance of thunderstorms. Cloudy, with a low around 55. Southeast wind 5 to 9 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain before 8am, then a chance of showers and thunderstorms between 2pm and 5pm, then showers and thunderstorms likely. Partly sunny, with a high near 79. Southwest wind 8 to 12 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 45. Northwest wind 12 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Mostly sunny, with a high near 52.
Areas of frost after 2am. Mostly clear, with a low around 33.
Widespread frost before 9am. Sunny, with a high near 58.
Mostly clear, with a low around 37.
Sunny, with a high near 61.
Partly cloudy, with a low around 41.
Mostly sunny, with a high near 64.
Partly cloudy, with a low around 41.
Sunny, with a high near 64.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Oct 15
|
Mostly Cloudy
|
54°F |
7 mph
N
|
|
Thursday
Oct 15
|
Partly Sunny
|
64°F |
2 to 6 mph
E
|
|
Thursday Night
Oct 15
|
Light Rain Likely
|
55°F |
5 to 9 mph
SE
|
|
Friday
Oct 16
|
Chance Light Rain then Chance Showers And Thunderstorms
|
79°F |
8 to 12 mph
SW
|
|
Friday Night
Oct 16
|
Chance Showers And Thunderstorms
|
45°F |
12 to 15 mph
NW
|
|
Saturday
Oct 17
|
Mostly Sunny
|
52°F |
10 to 14 mph
N
|
|
Saturday Night
Oct 17
|
Mostly Clear then Areas Of Frost
|
33°F |
1 to 8 mph
N
|
|
Sunday
Oct 18
|
Widespread Frost then Sunny
|
58°F |
3 mph
W
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
37°F |
0 to 3 mph
SE
|
|
Monday
Oct 19
|
Sunny
|
61°F |
0 to 3 mph
E
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
41°F |
2 mph
NE
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
64°F |
2 mph
N
|
|
Tuesday Night
Oct 20
|
Partly Cloudy
|
41°F |
1 mph
N
|
|
Wednesday
Oct 21
|
Sunny
|
64°F |
3 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Duncannon.
