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Borough of Duncannon, PADuncannon, PA 7-Day Weather Forecast
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Duncannon Weather Forecast
Duncannon, PA Weather Forecast Date: 1030 AM EDT Wed Aug 19 2026
Weather forecast for Duncannon, PA
Today Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Today... Sunny this morning, then becoming partly sunny. Patchy fog this morning. Highs in the lower 80s. West winds around 5 mph. |
Thu Hi: 71°FHi: 22°C Lo: 59°F Lo: 15°C |
Thursday... Patchy fog in the morning. Rain likely. Humid with highs in the lower 70s. Northeast winds around 5 mph. Chance of rain 70%. |
Fri Hi: 80°FHi: 27°C Lo: 60°F Lo: 16°C |
Friday... Mostly sunny. Highs around 80. Northeast winds around 5 mph, becoming east in the afternoon. |
Sat Hi: 80°FHi: 27°C Lo: 61°F Lo: 16°C |
Saturday... Patchy fog in the morning. Partly sunny with a 50% chance of showers. Humid with highs around 80. |
| Sun Hi: 80°FHi: 27°C Lo: 59°F Lo: 15°C |
Sunday... Partly sunny. A chance of showers in the afternoon. Humid with highs around 80. Chance of rain 30%. |
| Mon Hi: 79°FHi: 26°C Lo: 59°F Lo: 15°C |
Monday... Sunny. Highs in the upper 70s. |
| Tue Hi: 80°FHi: 27°C |
Tuesday... Mostly sunny. Highs around 80. |
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