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Chatham Weather Forecast
| THIS AFTERNOON | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 | | |  |  |  |  | | |  |  | |
| Rain | Rain | Rain | Chance of Rain | Partly Sunny | Mostly Cloudy | Mostly Sunny | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Chance of Showers | Chance of Showers |
| Hi: 61°FHi: 16°C | Lo: 51°FLo: 11°C | Hi: 59°FHi: 15°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C | Lo: 60°FLo: 16°C | Hi: 71°FHi: 22°C Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C Lo: 49°FLo: 9°C |
| POP: 80% | POP: 80% | POP: 90% | POP: 40% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 230 PM EDT Sun Sep 27 2026 
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Issued: 210 PM EDT Sun Sep 27 2026
Key Messages
1) A Nor`easter will continue to bring periods of rain to the region through Monday before departing out to sea.
2) Drier weather returns Tuesday through Thursday with temperatures rising to near and above normal levels.
Discussion
... KEY MESSAGE 1...
A nor`easter is currently centered across southern New Jersey and will continue to sit and spin near the mid-Atlantic coast though tonight. This storm has also begun its weakening stage with its central pressure rising to near 1000 hPa bas...