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Rowayton Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  |  |  | | |  | | |  | | |
| Mostly Cloudy | Chance of Showers | Mostly Sunny | Partly Cloudy | Mostly Sunny | Chance of Showers | Showers | Chance of Showers | Partly Sunny | Mostly Cloudy | Partly Sunny | Partly Cloudy |
| Hi: 80°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C |
| POP: 40% | POP: 40% | POP: 90% | POP: 90% |
POP = Probability of Precipitation.
Weather Outlook Updated: 157 AM EDT Thu Sep 17 2026 
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Issued: 226 AM EDT Thu Sep 17 2026
Key Messages
1) Shower chance for this evening / tonight. Low chance of an isolated t-storm N&W. No impacts expected.
2) Lowering humidity during Friday with dry and pleasant weather through Saturday.
3) Wet weather increasingly likely for the second half of the weekend. High uncertainty as to whether it remains unsettled into Monday and Tuesday.
Discussion
... .KEY MESSAGE 1...
What is left of an MCS which emanated out of Eastern Ohio slowly migrates east through today. A cold front also moves east a...