Lack, PA Weather Forecast
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Lack Weather Forecast
| TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
| Chance of T-Storm | Partly Cloudy | Mostly Sunny | Clear | Sunny | Mostly Clear | Sunny | Partly Cloudy | Sunny | Mostly Clear | Sunny | Mostly Clear |
| Hi: 79°FHi: 26°C | Lo: 40°FLo: 4°C | Hi: 51°FHi: 11°C | Lo: 31°FLo: -1°C | Hi: 59°FHi: 15°C | Lo: 35°FLo: 2°C | Hi: 61°FHi: 16°C | Lo: 39°FLo: 4°C | Hi: 65°FHi: 18°C | Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C | Lo: 40°FLo: 4°C |
| POP: 100% |
POP = Probability of Precipitation.
Weather Outlook Updated: 900 AM EDT Fri Oct 16 2026 

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Issued: 458 AM EDT Fri Oct 16 2026
Key Messages
1) A potent cold front preceded and accompanied by an anomalously strong low-level WSW jet of 45-55 kts will move SE across PA today with a severe threat focused this aftn/evening.
2) Windy with the first snowflakes of the season possible on the higher terrain of the north tonight/Sat morning
3) Cold weather may end the growing season for many places this weekend, with Sun morning the coldest.
Discussion
... KEY MESSAGE 1: A potent cold front preceded and accompanied by an anomalously st...
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