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Flat Run School Weather Forecast
| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
 | |  |  |  | | |  |  | | |  |
| Patchy Fog | Patchy Fog | Partly Cloudy | Mostly Sunny | Clear | Mostly Sunny | Partly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers | Showers |
| Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 69°FHi: 21°C |
| POP: 50% | POP: 50% | POP: 50% | POP: 50% | POP: 60% |
POP = Probability of Precipitation.
Weather Outlook Updated: 502 PM EDT Mon Sep 28 2026 
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Issued: 1259 PM EDT Mon Sep 28 2026
Key Messages
1) A mostly dry stretch of weather through Thursday with warming temperatures, before a late week front returns precipitation chances
Discussion
... KEY MESSAGE 1... Wraparound moisture/clouds from the lingering nor`easter will continue to spin across our region today in northerly flow. A few sprinkles or light rain showers remain possible near and north of Pittsburgh this afternoon, especially in upslope-prone regions, but limited lift and instability will keep any precipitation total...