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Sullivan, NY Weather Forecast
Sullivan, NY Weather Forecast Dated: 1228 AM Sun Sep 06 2026
Expect a mild stretch with a mix of sun and clouds and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate.
Sunday, September 6, 2026
Mid-Morning
56°F 13°C
Sunny
Mid-Afternoon
71°F 21°C
Partly Cloudy
Early-Evening
63°F 17°C
Sunny
Pleasant near 71°F 21°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and steady pressure. Winds turning from the NNW to the WNW at 5 mph 8 km/h.
Monday, September 7, 2026
Mid-Morning
58°F 15°C
Sunny
Mid-Afternoon
71°F 21°C
Sunny
Early-Evening
63°F 17°C
Sunny
Comfortable with temperatures reaching 71°F 21°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds switching from the WNW to the SSW at 6 mph 9 km/h.
Tuesday, September 8, 2026
Mid-Morning
62°F 17°C
Overcast
Mid-Afternoon
73°F 23°C
Overcast
Early-Evening
67°F 19°C
Overcast
Enjoyable around 73°F 23°C, overcast throughout the day, with increasing humidity and steady pressure.
Wednesday, September 9, 2026
Mid-Morning
67°F 19°C
Scattered Showers
Mid-Afternoon
64°F 18°C
Light Showers
Early-Evening
67°F 19°C
Scattered Showers
Cool with a high near 64°F 18°C, periods of heavy rain and gusty conditions, with increasing humidity and barometric pressure falling. Winds moving from the S to the SW at 11 mph 18 km/h. Gusts up to 25 mph 41 km/h.
Thursday, September 10, 2026
Mid-Morning
67°F 19°C
Scattered Showers
Mid-Afternoon
69°F 21°C
Light Showers
Early-Evening
65°F 18°C
Light Showers
Mild with a high of 69°F 21°C, scattered downpours possible, with steady humidity and steady pressure. Winds swinging from the WSW to the SSW at 11 mph 17 km/h. Gusts up to 24 mph 39 km/h.
Friday, September 11, 2026
Mid-Morning
60°F 16°C
Scattered Showers
Mid-Afternoon
69°F 20°C
Sunny
Early-Evening
62°F 17°C
Sunny
Pleasant near 69°F 20°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds shifting from the W to the SW at 5 mph 9 km/h.
Saturday, September 12, 2026
Mid-Morning
67°F 19°C
Sunny
Mid-Afternoon
78°F 26°C
Overcast
Early-Evening
76°F 25°C
Overcast
Comfortable with temperatures reaching 78°F 26°C, cloudy in the morning, partly cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds turning from the SSE to the S at 12 mph 20 km/h. Gusts up to 25 mph 40 km/h.
Sunday, September 13, 2026
Mid-Morning
72°F 22°C
Overcast
Mid-Afternoon
79°F 26°C
Light Showers
Early-Evening
75°F 24°C
Scattered Showers
Enjoyable around 79°F 26°C, scattered downpours possible, with steady humidity and steady pressure. Winds switching from the SSW to the SW at 6 mph 9 km/h.
Monday, September 14, 2026
Mid-Morning
69°F 21°C
Scattered Showers
Mid-Afternoon
73°F 23°C
Scattered Showers
Early-Evening
72°F 22°C
Scattered Showers
Mild temperatures up to 73°F 23°C, locally heavy downpours at times, with steady humidity and steady pressure.
Tuesday, September 15, 2026
Mid-Morning
72°F 22°C
Overcast
Mid-Afternoon
80°F 27°C
Light Showers
Early-Evening
72°F 22°C
Heavy Rain Showers
Warm and summery around 80°F 27°C (feels like 85°F 30°C), drier morning followed by showers lasting through evening, with steady humidity and steady pressure.
Wednesday, September 16, 2026
Mid-Morning
59°F 15°C
Light Showers
Mid-Afternoon
60°F 16°C
Scattered Showers
Early-Evening
57°F 14°C
Scattered Showers
Comfortable at 60°F 16°C, scattered downpours possible, with lower humidity and barometric pressure rising. Winds moving from the WNW to the SSW at 7 mph 11 km/h.
Thursday, September 17, 2026
Mid-Morning
51°F 11°C
Sunny
Mid-Afternoon
63°F 17°C
Sunny
Early-Evening
58°F 14°C
Partly Cloudy
Cool with a high near 63°F 17°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure.
Friday, September 18, 2026
Mid-Morning
56°F 13°C
Sunny
Mid-Afternoon
66°F 19°C
Scattered Showers
Early-Evening
62°F 17°C
Partly Cloudy
Refreshing around 66°F 19°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure.
Saturday, September 19, 2026
Mid-Morning
58°F 14°C
Sunny
Mid-Afternoon
68°F 20°C
Overcast
Early-Evening
64°F 18°C
Overcast
Mild temperatures up to 68°F 20°C, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds swinging from the ESE to the SE at 8 mph 12 km/h.
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