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St. John School, PA Weather Forecast
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St. John School Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
 |  | |  |  | |  | | | |  |  |
| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Patchy Fog | Patchy Fog | Clear | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Partly Cloudy | Partly Cloudy |
| Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 69°FLo: 21°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C |
| POP: 50% | POP: 90% | POP: 90% | POP: 50% | POP: 70% | POP: 70% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 850 PM EDT Sat Aug 15 2026 
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St. John School Forecast Discussion
Issued: 849 PM EDT Sat Aug 15 2026
Key Messages
1) Overnight cluster of storms will bring heavy rainfall and flood potential to eastern Ohio, northern West Virginia and possibly southwestern Pennsylvania.
2) Sunday storm evolution is lower confidence as it depends on the evolution of overnight storms, but flash flood and severe risks remain possible Sunday afternoon with potential renewed storms.
3) After lingering showers dissipate Monday, there is fairly high confidence in dry weather until Wednesday/...