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Haddam Weather Forecast
| THIS AFTERNOON | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  |  |  | | | |  | |  | |  |
| Chance of Showers | Chance of T-Storm | Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Showers Likely | Showers | Chance of Showers | Chance of Showers | Chance of Showers | Mostly Cloudy |
| Hi: 79°FHi: 26°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 50°FLo: 10°C | Hi: 61°FHi: 16°C | Lo: 49°FLo: 9°C |
| POP: 40% | POP: 40% | POP: 70% | POP: 90% | POP: 40% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 243 PM EDT Thu Sep 17 2026 
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Issued: 223 AM EDT Fri Sep 18 2026
Key Messages
1) Shower chances into early AM east of NYC. No impacts expected.
2) Lowering humidity during Friday with dry and pleasant weather through Saturday.
3) Wet weather expected for Saturday night into Sunday night. Conditions may remain unsettled into Monday and Tuesday.
Discussion
... .KEY MESSAGE 1... A cold front will cross through the region heading into the early AM hours of Friday. Shower chances remain east of NYC. Rainfall amounts should remain under 1/4 inch. Clouds will remain abun...