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Cornwall Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
 |  |  |  | | | | | | |  |  |
| Partly Cloudy | Clearing | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Partly Sunny | Chance of Showers |
| Hi: 60°FHi: 16°C | Lo: 40°FLo: 4°C | Hi: 69°FHi: 21°C | Lo: 50°FLo: 10°C | Hi: 65°FHi: 18°C | Lo: 39°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 35°FLo: 2°C | Hi: 65°FHi: 18°C | Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C |
| POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 553 AM EDT Wed Oct 28 2026 
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Issued: 138 PM EDT Wed Oct 28 2026
Key Messages
1) High pressure will remain the dominant player through the weekend.
2) One more round of localized minor coastal flooding for the SW CT coast during the time of high tide this afternoon.
Discussion
... .KEY MESSAGE 1... A benign stretch of weather will continue through the upcoming weekend with high pressure largely in control. High pressure across the area this morning will move offshore this afternoon and then gradually gives way to another approaching cold front, which passes throu...