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Siena, NY Weather - 14-Day Weather Forecast

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Siena NY Weather - Mostly Clear - 61°F
Mostly Clear
61°F
Updated 8:27 pm
Feels Like 55°F
Humidity 55%
Wind NW 9 mph
Barometer  30.2 in
Dew Point 45°F
Siena NY Weather - Mostly Clear - 16°C
Mostly Clear
16°C
Updated 8:27 pm
Feels Like 13°C
Humidity 55%
Wind NW 14 km/h
Barometer  102.3 kPa
Dew Point 7°C
Siena, NY Weather and Current Conditionssiena ny weather forecast

Siena, NY Weather Forecast

Siena New York WeatherSiena, New York Weather Weather Forecast
Here is the API 14 day weather forecast for Siena, New York. Note: The 7-day weather forecast for Siena, NY is the most reliable and accurate weather forecast. This template should only be used as a probable scenario. Forecasting weather beyond the next 7 days is a challenge.
Siena, NY Weather Forecast Dated: 827 PM Mon Sep 14 2026
Expect a cool pattern with more clouds than sun and frequent chances of rain over the coming period. generally humid conditions and a stable pattern will dominate.

Monday, September 14, 2026

Mid-Morning
Siena Weather - 2026-09-14 - Morning - Sunny
60°F 15°C
Sunny
Mid-Afternoon
Siena Weather - 2026-09-14 - Afternoon - Sunny
71°F 22°C
Sunny
Early-Evening
Siena Weather - 2026-09-14 - Evening - Sunny
62°F 17°C
Sunny
Pleasant near 71°F 22°C, sunny throughout the day, with lower humidity and barometric pressure rising. Winds turning from the NW to the NNW at 6 mph 10 km/h.

Tuesday, September 15, 2026

Mid-Morning
Siena Weather - 2026-09-15 - Morning - Partly Cloudy
55°F 13°C
Partly Cloudy
Mid-Afternoon
Siena Weather - 2026-09-15 - Afternoon - Partly Cloudy
71°F 22°C
Partly Cloudy
Early-Evening
Siena Weather - 2026-09-15 - Evening - Partly Cloudy
65°F 18°C
Partly Cloudy
Comfortable with temperatures reaching 71°F 22°C, partly cloudy through the afternoon, turning cloudy this evening, with lower humidity and steady pressure.

Wednesday, September 16, 2026

Mid-Morning
Siena Weather - 2026-09-16 - Morning - Cloudy
63°F 17°C
Cloudy
Mid-Afternoon
Siena Weather - 2026-09-16 - Afternoon - Overcast
76°F 25°C
Overcast
Early-Evening
Siena Weather - 2026-09-16 - Evening - Overcast
71°F 22°C
Overcast
Enjoyable around 76°F 25°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure.

Thursday, September 17, 2026

Mid-Morning
Siena Weather - 2026-09-17 - Morning - Scattered Showers
63°F 17°C
Scattered Showers
Mid-Afternoon
Siena Weather - 2026-09-17 - Afternoon - Overcast
65°F 19°C
Overcast
Early-Evening
Siena Weather - 2026-09-17 - Evening - Light Fog
65°F 19°C
Light Fog
Cool with a high near 65°F 19°C, periods of heavy rain and gusty conditions, with increasing humidity and barometric pressure falling.

Friday, September 18, 2026

Mid-Morning
Siena Weather - 2026-09-18 - Morning - Sunny
66°F 19°C
Sunny
Mid-Afternoon
Siena Weather - 2026-09-18 - Afternoon - Sunny
78°F 25°C
Sunny
Early-Evening
Siena Weather - 2026-09-18 - Evening - Overcast
65°F 19°C
Overcast
Mild with a high of 78°F 25°C, sunny through the afternoon, turning overcast this evening, with lower humidity and steady pressure. Winds switching from the NW to the NNE at 8 mph 12 km/h.

Saturday, September 19, 2026

Mid-Morning
Siena Weather - 2026-09-19 - Morning - Sunny
56°F 14°C
Sunny
Mid-Afternoon
Siena Weather - 2026-09-19 - Afternoon - Overcast
70°F 21°C
Overcast
Early-Evening
Siena Weather - 2026-09-19 - Evening - Overcast
65°F 19°C
Overcast
Pleasant near 70°F 21°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure falling. Winds increasing from the SW at 1 mph 1 km/h to S at 9 mph 14 km/h. Gusts up to 22 mph 36 km/h.

Sunday, September 20, 2026

Mid-Morning
Siena Weather - 2026-09-20 - Morning - Light Showers
58°F 15°C
Light Showers
Mid-Afternoon
Siena Weather - 2026-09-20 - Afternoon - Overcast
60°F 15°C
Overcast
Early-Evening
Siena Weather - 2026-09-20 - Evening - Sunny
57°F 14°C
Sunny
Comfortable at 60°F 15°C, early showers breaking for a drier afternoon, with lower humidity and barometric pressure rising. Winds swinging from the N to the SE at 6 mph 9 km/h.

Monday, September 21, 2026

Mid-Morning
Siena Weather - 2026-09-21 - Morning - Sunny
53°F 11°C
Sunny
Mid-Afternoon
Siena Weather - 2026-09-21 - Afternoon - Overcast
64°F 18°C
Overcast
Early-Evening
Siena Weather - 2026-09-21 - Evening - Overcast
58°F 14°C
Overcast
Cool with a high near 64°F 18°C, cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure.

Tuesday, September 22, 2026

Mid-Morning
Siena Weather - 2026-09-22 - Morning - Scattered Showers
49°F 10°C
Scattered Showers
Mid-Afternoon
Siena Weather - 2026-09-22 - Afternoon - Light Fog
49°F 9°C
Light Fog
Early-Evening
Siena Weather - 2026-09-22 - Evening - Fog
50°F 10°C
Fog
Brisk around 49°F 9°C, locally heavy downpours at times, with increasing humidity and steady pressure.

Wednesday, September 23, 2026

Mid-Morning
Siena Weather - 2026-09-23 - Morning - Cloudy
49°F 9°C
Cloudy
Mid-Afternoon
Siena Weather - 2026-09-23 - Afternoon - Sunny
66°F 19°C
Sunny
Early-Evening
Siena Weather - 2026-09-23 - Evening - Sunny
59°F 15°C
Sunny
Mildly cool near 66°F 19°C, cloudy in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure.

Thursday, September 24, 2026

Mid-Morning
Siena Weather - 2026-09-24 - Morning - Overcast
50°F 10°C
Overcast
Mid-Afternoon
Siena Weather - 2026-09-24 - Afternoon - Overcast
62°F 17°C
Overcast
Early-Evening
Siena Weather - 2026-09-24 - Evening - Overcast
59°F 15°C
Overcast
Comfortable at 62°F 17°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds shifting from the SE to the SSE at 6 mph 11 km/h. Gusts up to 20 mph 31 km/h.

Friday, September 25, 2026

Mid-Morning
Siena Weather - 2026-09-25 - Morning - Scattered Showers
56°F 13°C
Scattered Showers
Mid-Afternoon
Siena Weather - 2026-09-25 - Afternoon - Light Showers
61°F 16°C
Light Showers
Early-Evening
Siena Weather - 2026-09-25 - Evening - Heavy Rain Showers
61°F 16°C
Heavy Rain Showers
Cool with a high near 61°F 16°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds turning from the SSE to the ESE at 11 mph 17 km/h. Gusts up to 26 mph 41 km/h.

Saturday, September 26, 2026

Mid-Morning
Siena Weather - 2026-09-26 - Morning - Light Showers
56°F 14°C
Light Showers
Mid-Afternoon
Siena Weather - 2026-09-26 - Afternoon - Heavy Rain
60°F 15°C
Heavy Rain
Early-Evening
Siena Weather - 2026-09-26 - Evening - Scattered Showers
62°F 17°C
Scattered Showers
Refreshing around 60°F 15°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure.

Sunday, September 27, 2026

Mid-Morning
Siena Weather - 2026-09-27 - Morning - Overcast
57°F 14°C
Overcast
Mid-Afternoon
Siena Weather - 2026-09-27 - Afternoon - Cloudy
67°F 19°C
Cloudy
Early-Evening
Siena Weather - 2026-09-27 - Evening - Sunny
61°F 16°C
Sunny
Mildly cool near 67°F 19°C, overcast through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds switching from the W to the ENE at 4 mph 7 km/h.

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Weather by the Numbers

Mon, 14th
Siena NY Weather - Monday, Sep 14, 2026 - Sunny
Hi: 71°F 22°C
Lo: 54°F 12°C
Sunrise 06:33 AM
Sunset 07:06 PM
Wind NNW 11 mph17 km/h
Dew Point 41°F5°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 1% *
Humidity 38%
Tue, 15th
Siena NY Weather - Tuesday, Sep 15, 2026 - Cloudy
Hi: 71°F 22°C
Lo: 47°F 8°C
Sunrise 06:34 AM
Sunset 07:05 PM
Wind S 6 mph9 km/h
Dew Point 44°F7°C
uv Index 6
Barometric Pressure 30.39 in1029 mb
POP 6% *
Humidity 46%
Wed, 16th
Siena NY Weather - Wednesday, Sep 16, 2026 - Overcast
Hi: 77°F 25°C
Lo: 57°F 14°C
Sunrise 06:35 AM
Sunset 07:03 PM
Wind S 4 mph6 km/h
Dew Point 53°F12°C
uv Index 6
Barometric Pressure 30.33 in1027 mb
POP 12% *
Humidity 53%
Thu, 17th
Siena NY Weather - Thursday, Sep 17, 2026 - Light Drizzle
Hi: 67°F 20°C
Lo: 62°F 17°C
Sunrise 06:37 AM
Sunset 07:01 PM
Wind SSW 1 mph1 km/h
Dew Point 62°F17°C
uv Index 4
Barometric Pressure 30.27 in1025 mb
POP 73% *
Humidity 98%
Fri, 18th
Siena NY Weather - Friday, Sep 18, 2026 - Patchy Rain Nearby
Hi: 78°F 26°C
Lo: 57°F 14°C
Sunrise 06:38 AM
Sunset 06:59 PM
Wind NNW 7 mph12 km/h
Dew Point 53°F12°C
uv Index 5
Barometric Pressure 30.12 in1020 mb
POP 9% *
Humidity 46%
Sat, 19th
Siena NY Weather - Saturday, Sep 19, 2026 - Overcast
Hi: 71°F 22°C
Lo: 49°F 9°C
Sunrise 06:39 AM
Sunset 06:57 PM
Wind SSE 3 mph5 km/h
Dew Point 43°F6°C
uv Index 4
Barometric Pressure 30.18 in1022 mb
POP 3% *
Humidity 43%
Sun, 20th
Siena NY Weather - Sunday, Sep 20, 2026 - Patchy Rain Nearby
Hi: 65°F 18°C
Lo: 52°F 11°C
Sunrise 06:40 AM
Sunset 06:55 PM
Wind WSW 9 mph14 km/h
Dew Point 54°F12°C
uv Index 3
Barometric Pressure 29.88 in1012 mb
POP 66% *
Humidity 92%
Mon, 21st
Siena NY Weather - Monday, Sep 21, 2026 - Cloudy
Hi: 65°F 18°C
Lo: 47°F 9°C
Sunrise 06:41 AM
Sunset 06:54 PM
Wind NNE 7 mph11 km/h
Dew Point 46°F8°C
uv Index 4
Barometric Pressure 30.21 in1023 mb
POP 6% *
Humidity 57%
Tue, 22nd
Siena NY Weather - Tuesday, Sep 22, 2026 - Light Rain Shower
Hi: 51°F 11°C
Lo: 48°F 9°C
Sunrise 06:42 AM
Sunset 06:52 PM
Wind SW 3 mph5 km/h
Dew Point 45°F7°C
uv Index 2
Barometric Pressure 30.36 in1028 mb
POP 55% *
Humidity 88%
Wed, 23rd
Siena NY Weather - Wednesday, Sep 23, 2026 - Partly Cloudy
Hi: 66°F 19°C
Lo: 44°F 6°C
Sunrise 06:43 AM
Sunset 06:50 PM
Wind SE 2 mph4 km/h
Dew Point 45°F7°C
uv Index 5
Barometric Pressure 30.45 in1031 mb
POP 9% *
Humidity 60%
Thu, 24th
Siena NY Weather - Thursday, Sep 24, 2026 - Overcast
Hi: 63°F 17°C
Lo: 44°F 7°C
Sunrise 06:44 AM
Sunset 06:48 PM
Wind SSE 9 mph15 km/h
Dew Point 38°F3°C
uv Index 4
Barometric Pressure 30.45 in1031 mb
POP 10% *
Humidity 43%
Fri, 25th
Siena NY Weather - Friday, Sep 25, 2026 - Light Rain Shower
Hi: 63°F 17°C
Lo: 55°F 13°C
Sunrise 06:45 AM
Sunset 06:46 PM
Wind SSE 10 mph17 km/h
Dew Point 56°F14°C
uv Index 3
Barometric Pressure 30.24 in1024 mb
POP 48% *
Humidity 93%
Sat, 26th
Siena NY Weather - Saturday, Sep 26, 2026 - Light Rain Shower
Hi: 62°F 17°C
Lo: 55°F 13°C
Sunrise 06:46 AM
Sunset 06:45 PM
Wind N 5 mph8 km/h
Dew Point 58°F14°C
uv Index 3
Barometric Pressure 30.15 in1021 mb
POP 81% *
Humidity 99%
Sun, 27th
Siena NY Weather - Sunday, Sep 27, 2026 - Cloudy
Hi: 67°F 19°C
Lo: 54°F 12°C
Sunrise 06:48 AM
Sunset 06:43 PM
Wind ENE 7 mph12 km/h
Dew Point 46°F8°C
uv Index 4
Barometric Pressure 30.27 in1025 mb
POP 12% *
Humidity 52%
* POP = Probability of Precipitation. Data for 12:00 PM.