Southeastern, PA Weather Forecast
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Southeastern Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
| Chance of Showers | Clear | Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy |
| 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: 41°FLo: 5°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 558 AM EDT Sat Oct 17 2026 

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Issued: 316 AM EDT Sat Oct 17 2026
Key Messages
1. A cold airmass builds into the region this weekend. Freeze Warnings are in effect for tonight. Another round of frost is possible Sunday night into Monday morning.
2. Uncertainty persists regarding a nor`easter developing off the coast of the southern Mid-Atlantic that may cause unsettled conditions and hazardous marine impacts early next week.
Discussion
... KEY MESSAGE 1...A cold airmass builds into the region this weekend. Freeze Warnings are in effect for tonight. Another round o...
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