STONY BROOK, NY 11790 Weather Forecast & Current Conditions

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11790 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
ISLIP, NY Current Weather
1:56 PM EDT AUG 20, 2025
Overcast Mist 70°F
Feels Like:	70°F
Dewpoint:	66°F
Rel. Hum.:	87%
Visibility:	6 miles
Wind:	E at 14 mph
Pressure:	30.03 inches
Last 72 hours
Local Area Snow Depth
New York Current Weather
New York MOS Forecast Weather

Regional Weather Maps

(Automated weather data from NWS/FAA)

11790 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	STONY BROOK, NY 11790 Weather Forecast	Snowfall Forecast pages Snow Depth pages

THIS AFTERNOON
Showers likely with a slight chance of thunderstorms. Highs in the mid 70s. East winds around 15 mph with gusts up to 25 mph. Chance of rain 70 percent.

TONIGHT
Showers likely with a chance of thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the lower 60s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent.

THURSDAY
Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning. Highs in the mid 70s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 30 percent.

THURSDAY NIGHT
Mostly cloudy in the evening, then clearing. Lows around 60. Northeast winds 15 to 20 mph with gusts up to 30 mph.

FRIDAY
Sunny. Highs in the lower 80s. North winds 10 to 15 mph with gusts up to 25 mph.

FRIDAY NIGHT
Mostly clear. Lows in the mid 60s.

SATURDAY
Sunny. Highs in the lower 80s.

SATURDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 60s.

SUNDAY
Partly sunny. A chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 30 percent.

SUNDAY NIGHT
Mostly cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the upper 60s. Chance of rain 70 percent.

MONDAY
Showers likely. Highs in the lower 80s. Chance of rain 70 percent.

MONDAY NIGHT
Partly cloudy with a chance of showers in the evening, then mostly clear after midnight. Lows in the mid 60s. Chance of rain 50 percent.

TUESDAY
Sunny. Highs around 80.

11790 WEATHER SATELLITE LOOPS

Visible Weather Satellite
STONY BROOK, NY 11790

Infrared Weather Satellite
STONY BROOK, NY 11790

11790 WEATHER RADAR LOOP

NEXRAD Weather Radar
STONY BROOK, NY 11790

MOS COMPUTER WEATHER FORECAST

ISLIP, NY 3 hourly weather forecast

weather forecast created 8:00 AM EDT 8/20/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
20 AUG 2025

2 PM

72°

72°

Mostly Cloudy

64%
RAIN
***

0% Thunder
( 23% severe)

E 16

76%

64°

High 73°

5 PM

70°

70°

Mostly Cloudy

E 16

84%

65°

Mostly Cloudy

Rain Likely

8 PM

67°

67°

Mostly Cloudy

69%
RAIN
***

0% Thunder
( 31% severe)

ENE 14

93%

65°

11 PM

67°

67°

Mostly Cloudy

ENE 14

90%

64°

Thursday
21 AUG 2025

2 AM

67°

67°

Mostly Cloudy

43%
RAIN
***

0% Thunder
( 21% severe)

ENE 14

93%

65°

Low 65°

5 AM

67°

67°

Mostly Cloudy

ENE 16

90%

64°

High 74°

8 AM

67°

67°

Mostly Cloudy

25%
RAIN
.25–.5 in

0% Thunder
( 8% severe)

ENE 17

90%

64°

Mostly Cloudy

Chance of Rain

Breezy

11 AM

69°

69°

Mostly Cloudy

ENE 21

78%

62°

2 PM

72°

72°

Mostly Cloudy

9%

0% Thunder
( 2% severe)

NE 21

68%

61°

5 PM

72°

72°

Mostly Cloudy

NE 21

66%

60°

8 PM

68°

68°

Mostly Cloudy

5%

0% Thunder
( 1% severe)

NNE 18

73%

59°

11 PM

66°

66°

Partly Cloudy

NNE 18

73%

57°

Friday
22 AUG 2025

2 AM

64°

62°

Partly Cloudy

2%

0% Thunder
( 1% severe)

NNE 17

75%

56°

Low 61°

5 AM

62°

60°

Partly Cloudy

N 18

75%

54°

High 83°

8 AM

67°

67°

Clear

1%

0% Thunder
( 0% severe)

N 16

63%

54°

Clear

11 AM

75°

75°

Clear

N 17

43%

51°

2 PM

80°

80°

Clear

0%

0% Thunder
( 1% severe)

N 14

38%

52°

5 PM

80°

80°

Clear

N 12

39%

53°

8 PM

74°

74°

Clear

SW 8

57%

58°


ISLIP, NY extended weather forecast
Saturday 23 AUG 2025	Sunday 24 AUG 2025	Monday 25 AUG 2025	Tuesday 26 AUG 2025	Wednesday 27 AUG 2025
Low 63°	Low 67°	Low 68°	Low 64°	Low 58°
High 80°	High 79°	High 80°	High 75°	High 75°

Partly Cloudy 4% Rain	Partly Cloudy 25% Rain	Partly Cloudy 56% Rain	Partly Cloudy 33% Rain	Partly Cloudy 23% Rain

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