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Johnstown School, PA Weather Forecast
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Johnstown School Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
 |  |  |  |  |  | |  | | | | |
| Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers | Mostly Sunny | Mostly Clear | Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Chance of T-Storm | Chance of T-Storm |
| Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 60°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C |
| POP: 50% | POP: 70% | POP: 50% | POP: 50% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1200 PM EDT Sat Aug 22 2026 
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Johnstown School Forecast Discussion
Issued: 1101 AM EDT Sat Aug 22 2026
Key Messages
1) Upper level low pressure swinging SE from the upper Glakes to southern Ontario will lead to high temps trending cooler by a few to several degrees each day through Monday along with periods of showers and isolated to scattered gusty thunderstorms.
Discussion
... KEY MESSAGE 1: Upper level low pressure swinging SE from the upper Glakes to southern Ontario will lead to high temps trending cooler by a few to several degrees each day through Monday along with periods of showers and isol...