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Borough of Ambridge, PAAmbridge, PA Weather Forecast
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Ambridge Weather Forecast
| OVERNIGHT | TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
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| Patchy Fog | Clearing | Clear | Chance of Showers | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers | Showers | Showers | Chance of Showers |
| Lo: 65°FLo: 18°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 65°FLo: 18°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 69°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 65°FHi: 18°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C |
| POP: 20% | POP: 80% | POP: 90% | POP: 70% | POP: 40% | POP: 50% | POP: 60% | POP: 60% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1233 AM EDT Fri Sep 18 2026 
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Issued: 751 PM EDT Thu Sep 17 2026
Key Messages
1) Flash flood risk will continue to wane through Friday morning as axis of heavier rain favors SE of the region.
2) Active weather returns starting Saturday into next week that could portend to increased flood risks.
Discussion
... KEY MESSAGE 1... Latest analysis showers the main axis of low-level warm advection (around the 925mb height) that has been the focus for heavy rain shower and thunderstorm development NE of it is struggling to advance farther east than the IN/OH border. Add ...