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Siena Weather Forecast
| THIS AFTERNOON | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | THURSDAY | THURSDAY NIGHT | FRIDAY |
 |  |  |  | | | | | | |  |
| Mostly Cloudy | Mostly Cloudy | Showers | Chance of Showers | Partly Sunny | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Chance of Showers | Chance of Showers |
| Hi: 65°FHi: 18°C | Lo: 50°FLo: 10°C | Hi: 61°FHi: 16°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Hi: 65°FHi: 18°C Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C Lo: 45°FLo: 7°C |
| POP: 100% | POP: 80% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 230 PM EDT Sat Sep 19 2026 
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Issued: 146 PM EDT Sat Sep 19 2026
Key Messages
1) Widespread light to moderate rain remains on track for the area Sunday, with no flood concerns expected.
2) A coastal storm will track near the East Coast late next week, but confidence remains low on whether we will see impacts from this system at this time.
Discussion
... KEY MESSAGE 1... After a gorgeous day which will feature a mix of sun and clouds with highs in the 50s/60s, our weather will turn active across eastern New York and western New England to close out the weekend.
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