Weather in Duncannon, PA
Updated 2026-08-11 13:45 local time · ZIP codes 17020
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
82°3% rain
86°5% rain86°4% rain85°4% rain85°3% rain83°4% rain80°5% rain
78°6% rain77°7% rain76°11% rain
75°33% rain
66°71% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance reaches about 71% over the next 12 hours.
It feels like 84°F with winds near 10 mph.
80°F, 5% rain chance and 3 mph wind.
Visibility is around 10 mi; gusts may reach 26 mph.
Current temperature is 82°F, wind 10 mph, rain chance up to 71%.
UV index is 7. Sunscreen, shade and protective clothing are recommended.
Duncannon weather today
Sunny and 82°F in Duncannon, PA. Today's high is 89°F with a 17% rain chance. Winds are around 10 mph with gusts near 11 mph. Relative humidity is 58%, pressure is 29.90 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Duncannon
Sunrise is at 06:15 AM and sunset is at 08:11 PM. Tomorrow's forecast calls for Sunny with a high near 87°F and a low near 66°F. The maximum rain chance is 57%.