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Chatham Weather Forecast
| TONIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 |  |  | | | | | |  |  | |  |
| Chance of T-Storm | Mostly Sunny | Clearing | Mostly Sunny | Clearing | Mostly Sunny | Partly Cloudy | Mostly Sunny | Chance of Showers | Showers | Showers Likely | Partly Sunny |
| Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 61°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 51°FHi: 11°C |
| POP: 90% | POP: 50% | POP: 60% | POP: 60% |
POP = Probability of Precipitation.
Weather Outlook Updated: 400 PM EDT Sun Oct 11 2026 
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Issued: 821 PM EDT Sun Oct 11 2026
Key Messages
1. The remnants of Isaias will continue to bring rain and a few thunderstorms to the region overnight.
2. Widespread minor tidal flooding expected Monday morning for much of the Atlantic Ocean coasts in New Jersey and Delaware.
3. Increasing temperatures and humid conditions through midweek with some shower chances. The pattern becomes more active towards the end of the week and into the start of the weekend. By the weekend, temperatures get much cooler.
Discussion
... KEY MESSAGE 1...Th...