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Allegheny High School Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
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| Partly Cloudy | Clear | Mostly Sunny | Patchy Fog | Patchy Fog | Mostly Cloudy | Partly Cloudy | Clear | Mostly Sunny | Clear | Mostly Sunny | Clear |
| Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 502 AM EDT Mon Aug 24 2026 
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Issued: 150 AM EDT Mon Aug 24 2026
Key Messages
1) Dry weather is favored through Wednesday as temperature slowly rises back toward daily averages.
2) Mostly dry through Wednesday. Precipitation chances increase Thursday, with some low-end potential for severe weather depending on future model trends.
Discussion
... KEY MESSAGE 1... Lingering showers early this morning exit the region shortly after sunrise as the mid-level shortwave shifts east. Though cold core processes underneath the upper trough plus a weak embedded may be enough...