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Cornerstone Church Weather Forecast
| REST OF TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
 |  |  |  | |  |  |  | | | |  |
| Partly Cloudy | Isolated Showers | Scattered Showers | Patchy Fog | Partly Cloudy | Partly Sunny | Mostly Clear | Sunny | Patchy Fog | Patchy Fog | Partly Cloudy | Chance of Showers |
| Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C |
| POP: 20% | POP: 50% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 242 AM EDT Sun Sep 20 2026 
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Issued: 115 AM EDT Sun Sep 20 2026
Key Messages
1) Potential for patchy frost tonight and Monday night across the north.
2) A coastal low could impact at least Downeast Maine late this week.
Discussion
... KEY MESSAGE 1... Potential for patchy frost Monday night across the north.
KEY MESSAGE 1 DESCRIPTION... Strong Canadian high pressure returns to the region Monday night. With mostly clear skies amd light winds during the overnight hours promoting favorable radiational cooling conditions. This likely will result in possible patchy fr...