Weather Alert
Duncannon Weather Warning NWS WEATHER ALERT FOR THE DUNCANNON, PA AREA - Issued: 401 PM EDT Sun Aug 2 2026 Duncannon Weather Warning

World > North America > United States > Pennsylvania > Duncannon   Duncannon, PA Weather Borough of Duncannon, PA

Weather for Duncannon, PADuncannon, PA Weather & Current Conditions

17020 Weather (Duncannon, PA)

Duncannon, PA WeatherCurrent Conditions and Weather for Duncannon, Pennsylvania
Feedback E-mail the Weather

Quick Weather Clicks

Weather World

Current Conditions

Settings
WX Settings
Overcast at Duncannon (17020), temperature is 75°F24°C, dew point 72°F22°C, humidity 90%. Wind direction is S at 6 mphat 10 km/h with visibility of 10.00 mi16 km. Barometric pressure is 29.71 in1006 mb. Last update: 2:02 am.*
*Time is approximately 2:02 am Mon, Aug 03, 2026. Time will be within 15 minutes of current local time. Duncannon weather forecast data is updated every 15 minutes.

Weather Quote O' the Day

No one ever remembered a nice day. But no one ever forget the feel of paralyzed fish, the thud of walnut-sized hail against a horse's flank, or the way a superheated wind could turn your eyes to burlap. ―Erik Larson
Add a Weather Quote―
Duncannon PA Weather - 2:02 am

Duncannon Weather Forecast

Weather forecast for: Duncannon PA
Last Update: 8:11 pm EDT Aug 2, 2026
Overnight: Showers likely and possibly a thunderstorm before 3am, then a chance of showers and thunderstorms after 3am. Cloudy, with a low around 70. Light south wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday: A chance of showers and thunderstorms, mainly before 2pm. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 82. Calm wind becoming northwest 5 to 7 mph in the morning. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night: Mostly cloudy, with a low around 64. North wind around 5 mph becoming calm in the evening.
Tuesday: Partly sunny, with a high near 83. Light and variable wind.
Tuesday Night: Mostly cloudy, with a low around 64. Calm wind.
Wednesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night: A chance of showers before 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Thursday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 60%.
Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Friday: Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 60%.
Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Saturday: A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 50%.
Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Sunday: A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 30%.

Trending Headlines

Duncannon Radar Loop

Duncannon Quick Facts

National Two Day Weather Forecast


E-mail the Duncannon Weather Forecast

Voice your opinion or tell us about page issues...