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| Hi: 59°FHi: 15°C | Lo: 29°FLo: -2°C | Hi: 65°FHi: 18°C | Lo: 35°FLo: 2°C | Hi: 65°FHi: 18°C | Lo: 31°FLo: -1°C | Hi: 61°FHi: 16°C | Lo: 35°FLo: 2°C | Hi: 65°FHi: 18°C | Lo: 40°FLo: 4°C | Hi: 60°FHi: 16°C | Lo: 39°FLo: 4°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1200 PM EDT Sun Oct 18 2026 
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Issued: 637 AM EDT Sun Oct 18 2026
Key Messages
1) Frost/Freeze early Sunday morning ends growing season for some areas
2) Extended stretch of dry and seasonable weather this week
Discussion
... KEY MESSAGE 1: Frost/Freeze early Sunday morning ends growing season for some areas
Keystone Mesonet obs at 3AM/7Z are generally below the freezing mark across the western and northern Alleghenies (along and NW of I99 and I80). With several more hours of ideal radiational cooling, expect min temps around daybreak to bottom in the 25-30F range....