OLD MASTIC, NY 11951 Weather Forecast & Current Conditions

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SHIRLEY/BROOKHAVEN, NY
Current Weather

2:56 AM EDT JUN 9, 2026
Clear
57°F
Feels Like: 56°F
Dewpoint: 50°F
Rel. Hum.: 77%
Visibility: 10 miles
Wind: W at 5 mph
Pressure: 30.27 inches
Last 72 hours

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OLD MASTIC, NY 11951
Weather Forecast

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TODAY
Sunny. Highs in the mid 70s. Southwest winds 10 to 15 mph.
TONIGHT
Mostly clear. Lows around 60. Southwest winds 10 to 15 mph.
WEDNESDAY
Partly sunny in the morning, then cloudy with a chance of showers in the afternoon. Highs in the lower 70s. Southwest winds 5 to 10 mph. Chance of rain 50 percent.
WEDNESDAY NIGHT
Showers with a chance of thunderstorms. Lows in the lower 60s. Southwest winds 5 to 10 mph. Chance of rain 80 percent.
THURSDAY
Partly sunny. A chance of showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Southwest winds 5 to 10 mph. Gusts up to 20 mph in the afternoon. Chance of rain 50 percent.
THURSDAY NIGHT
Mostly cloudy. A chance of showers and thunderstorms in the evening, then a chance of showers after midnight. Lows in the mid 60s. Chance of rain 50 percent.
FRIDAY
Mostly sunny. Highs in the upper 70s.
FRIDAY NIGHT
Mostly cloudy. A chance of showers. Lows in the lower 60s. Chance of rain 40 percent.
SATURDAY
Mostly sunny. Highs in the upper 70s.
SATURDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 60s.
SUNDAY
Sunny. Highs in the lower 80s.
SUNDAY NIGHT
Partly cloudy. Lows in the lower 60s.
MONDAY
Partly sunny with a 40 percent chance of showers. Highs in the upper 70s.

Visible Weather Satellite
OLD MASTIC, NY 11951
Infrared Weather Satellite
OLD MASTIC, NY 11951
NEXRAD Weather Radar
OLD MASTIC, NY 11951

SHIRLEY/BROOKHAVEN, NY 3 hourly weather forecast

weather forecast created  8:00 PM EDT  6/ 8/2026
Tuesday
9 JUN 2026
OLD MASTIC, NY 11951 weather forecast Day 1, 0 hours 2 AM 60° 60° Clear 0%

0% Thunder
( 0% severe)
WSW   5 72% 51°
Low 57° OLD MASTIC, NY 11951 weather forecast Day 1, 3 hours 5 AM 58° 57° Clear WSW   6 72% 49°
High 78° OLD MASTIC, NY 11951 weather forecast Day 1, 6 hours 8 AM 66° 66° Clear 0%

0% Thunder
( 0% severe)
WSW   7 52% 48°

Partly Cloudy



OLD MASTIC, NY 11951 weather forecast Day 1, 9 hours 11 AM 76° 78° Partly Cloudy SW   12 34% 46°
OLD MASTIC, NY 11951 weather forecast Day 1, 12 hours 2 PM 78° 78° Partly Cloudy 0%

0% Thunder
( 0% severe)
SSW   13 35% 48°
OLD MASTIC, NY 11951 weather forecast Day 1, 15 hours 5 PM 75° 75° Clear SSW   13 41% 50°
OLD MASTIC, NY 11951 weather forecast Day 1, 18 hours 8 PM 67° 67° Clear 1%

0% Thunder
( 1% severe)
SSW   10 63% 54°
OLD MASTIC, NY 11951 weather forecast Day 1, 21 hours 11 PM 65° 65° Partly Cloudy SSW   9 75% 57°
Wednesday
10 JUN 2026
OLD MASTIC, NY 11951 weather forecast Day 2, 0 hours 2 AM 64° 64° Mostly Cloudy 2%

0% Thunder
( 0% severe)
SW   9 84% 59°
Low 61° OLD MASTIC, NY 11951 weather forecast Day 2, 3 hours 5 AM 63° 62° Mostly Cloudy SW   9 87% 59°
High 78° OLD MASTIC, NY 11951 weather forecast Day 2, 6 hours 8 AM 69° 69° Mostly Cloudy 36%
RAIN
.01–.1 in
0% Thunder
( 3% severe)
SW   9 76% 61°

Mostly Cloudy

Rain Likely

OLD MASTIC, NY 11951 weather forecast Day 2, 9 hours 11 AM 75° 75° Mostly Cloudy SSW   12 64% 62°
OLD MASTIC, NY 11951 weather forecast Day 2, 12 hours 2 PM 76° 78° Mostly Cloudy 55%
RAIN
.25–.5 in
0% Thunder
( 19% severe)
S   13 66% 64°
OLD MASTIC, NY 11951 weather forecast Day 2, 15 hours 5 PM 74° 74° Mostly Cloudy S   13 74% 65°
OLD MASTIC, NY 11951 weather forecast Day 2, 18 hours 8 PM 70° 70° Mostly Cloudy 58%
RAIN
1–2 in
0% Thunder
( 39% severe)
SSW   10 87% 66°
OLD MASTIC, NY 11951 weather forecast Day 2, 21 hours 11 PM 69° 69° Mostly Cloudy SSW   9 90% 66°

SHIRLEY/BROOKHAVEN, NY extended weather forecast

Thursday
11 JUN 2026
Friday
12 JUN 2026
Saturday
13 JUN 2026
Sunday
14 JUN 2026
Monday
15 JUN 2026
Low 67° Low 70° Low 66° Low 62° Low 62°
High 88° High 82° High 82° High 82° High 74°
OLD MASTIC, NY 11951 weather forecast Day 3 OLD MASTIC, NY 11951 weather forecast Day 4 OLD MASTIC, NY 11951 weather forecast Day 5 OLD MASTIC, NY 11951 weather forecast Day 6 OLD MASTIC, NY 11951 weather forecast Day 7
Mostly Cloudy
59% Rain
Partly Cloudy
51% Rain
Mostly Cloudy
48% Rain
Partly Cloudy
16% Rain
Overcast
53% Rain
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