Waste House Run Reservoir, PA Weather Forecast
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Waste House Run Reservoir Weather Forecast
| TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
| Patchy Fog | Mostly Clear | Sunny | Patchy Fog | Chance of Showers | Chance of Showers | Partly Sunny | Mostly Cloudy | Chance of Showers | Chance of Showers | Chance of T-Storm | Chance of T-Storm |
| Hi: 79°FHi: 26°C | Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C |
| POP: 40% | POP: 40% | POP: 40% | POP: 40% | POP: 40% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1200 PM EDT Fri Aug 28 2026 

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Issued: 624 AM EDT Fri Aug 28 2026
Key Messages
1) Late summer warmth to end August and start September with potential severe weather and heavy rain threats early next week
Discussion
... IR satellite trends show fog coverage expanding in the western and central valleys where skies have cleared for the most part. Can`t rule out a stray shower/t-storm southeast of I-81 today, but overall conditions will be trending drier/less humid through Saturday. Noticeable cooler tonight with more locally dense valley fog into early Saturday morn...
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