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Old Mastic, NY Weather Forecast
Old Mastic, NY Weather Forecast Dated: 336 PM Sun Sep 20 2026
Expect a cool pattern with more clouds than sun and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate.
Sunday, September 20, 2026
Mid-Morning
67°F 20°C
Drizzle
Mid-Afternoon
68°F 20°C
Drizzle
Early-Evening
69°F 21°C
Light Rain
Pleasant near 68°F 20°C, rounds of showers expected off and on all day, with increasing humidity and barometric pressure falling. Winds turning from the SSE to the SSW at 15 mph 24 km/h. Gusts up to 21 mph 34 km/h.
Monday, September 21, 2026
Mid-Morning
62°F 17°C
Overcast
Mid-Afternoon
68°F 20°C
Overcast
Early-Evening
66°F 19°C
Overcast
Comfortable with temperatures reaching 68°F 20°C, overcast throughout the day, with lower humidity and steady pressure. Winds switching from the NNE to the ENE at 15 mph 24 km/h.
Tuesday, September 22, 2026
Mid-Morning
61°F 16°C
Light Showers
Mid-Afternoon
59°F 15°C
Light Showers
Early-Evening
59°F 15°C
Scattered Showers
Comfortable at 59°F 15°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds moving from the ENE to the NE at 24 mph 38 km/h. Gusts up to 28 mph 45 km/h.
Wednesday, September 23, 2026
Mid-Morning
61°F 16°C
Scattered Showers
Mid-Afternoon
61°F 16°C
Scattered Showers
Early-Evening
60°F 16°C
Scattered Showers
Cool with a high near 61°F 16°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds out of the ENE at 25 mph 40 km/h. Gusts up to 30 mph 48 km/h.
Thursday, September 24, 2026
Mid-Morning
58°F 15°C
Scattered Showers
Mid-Afternoon
64°F 18°C
Overcast
Early-Evening
61°F 16°C
Overcast
Refreshing around 64°F 18°C, scattered downpours possible, with lower humidity and steady pressure. Winds blowing from the ENE at 25 mph 40 km/h. Gusts up to 28 mph 45 km/h.
Friday, September 25, 2026
Mid-Morning
56°F 13°C
Light Showers
Mid-Afternoon
56°F 13°C
Scattered Showers
Early-Evening
56°F 13°C
Scattered Showers
Cool and brisk at 56°F 13°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds turning from the NNW to the NW at 16 mph 26 km/h. Gusts up to 20 mph 33 km/h.
Saturday, September 26, 2026
Mid-Morning
58°F 14°C
Scattered Showers
Mid-Afternoon
60°F 16°C
Partly Cloudy
Early-Evening
59°F 15°C
Scattered Showers
Comfortable at 60°F 16°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds out of the NNW at 16 mph 26 km/h.
Sunday, September 27, 2026
Mid-Morning
59°F 15°C
Scattered Showers
Mid-Afternoon
62°F 16°C
Scattered Showers
Early-Evening
62°F 16°C
Overcast
Cool with a high near 62°F 16°C, scattered downpours possible, with steady humidity and steady pressure. Winds moving from the NNE to the NE at 10 mph 16 km/h.
Monday, September 28, 2026
Mid-Morning
61°F 16°C
Partly Cloudy
Mid-Afternoon
64°F 18°C
Scattered Showers
Early-Evening
64°F 18°C
Overcast
Refreshing around 64°F 18°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds swinging from the ENE to the ESE at 11 mph 17 km/h.
Tuesday, September 29, 2026
Mid-Morning
65°F 19°C
Scattered Showers
Mid-Afternoon
67°F 20°C
Heavy Rain Showers
Early-Evening
67°F 20°C
Heavy Rain Showers
Mildly cool near 67°F 20°C, periods of heavy rain and gusty conditions, with steady humidity and barometric pressure falling. Winds easing from ESE 17 mph 27 km/h to ESE 9 mph 14 km/h.
Wednesday, September 30, 2026
Mid-Morning
64°F 18°C
Scattered Showers
Mid-Afternoon
66°F 19°C
Overcast
Early-Evening
66°F 19°C
Scattered Showers
Comfortable at 66°F 19°C, scattered downpours possible, with steady humidity and steady pressure. Winds turning from the NNE to the SSE at 8 mph 12 km/h.
Thursday, October 1, 2026
Mid-Morning
67°F 20°C
Overcast
Mid-Afternoon
69°F 21°C
Overcast
Early-Evening
69°F 21°C
Scattered Showers
Comfortable with temperatures reaching 69°F 21°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds SSW at 12 mph 19 km/h. Gusts up to 24 mph 39 km/h.
Friday, October 2, 2026
Mid-Morning
68°F 20°C
Sunny
Mid-Afternoon
72°F 22°C
Sunny
Early-Evening
67°F 20°C
Sunny
Enjoyable around 72°F 22°C, cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds moving from the WNW to the NW at 11 mph 17 km/h.
Saturday, October 3, 2026
Mid-Morning
62°F 17°C
Sunny
Mid-Afternoon
67°F 19°C
Overcast
Early-Evening
65°F 19°C
Overcast
Mildly cool near 67°F 19°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. Winds swinging from the NW to the S at 9 mph 14 km/h.
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