LAKE RONKONKOMA, NY 11779 Weather Forecast & Current Conditions

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ISLIP, NY
Current Weather

12:56 AM EDT JUN 27, 2025
Overcast
66°F
Feels Like: 66°F
Dewpoint: 57°F
Rel. Hum.: 73%
Visibility: 10 miles
Wind: ENE at 8 mph
Pressure: 30.17 inches
Last 72 hours

Local Area Snow Depth

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LAKE RONKONKOMA, NY 11779
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly cloudy. A slight chance of showers after midnight. Lows in the lower 60s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.
FRIDAY
Mostly cloudy. Highs around 70. East winds 10 to 15 mph.
FRIDAY NIGHT
Cloudy. A slight chance of showers in the evening, then a chance of showers and thunderstorms after midnight. Lows in the lower 60s. Southeast winds 10 to 15 mph. Chance of rain 50 percent.
SATURDAY
Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Humid with highs in the lower 80s. South winds 5 to 10 mph. Chance of rain 50 percent.
SATURDAY NIGHT
Mostly cloudy with a chance of showers and thunderstorms. Humid with lows around 70. South winds 5 to 10 mph. Chance of rain 50 percent.
SUNDAY
Partly sunny. Highs in the lower 80s.
SUNDAY NIGHT
Mostly cloudy. Lows in the upper 60s.
MONDAY
Partly sunny. Highs in the lower 80s.
MONDAY NIGHT
Mostly cloudy. A chance of showers and thunderstorms after midnight. Lows around 70. Chance of rain 40 percent.
TUESDAY
Mostly cloudy with a chance of showers and thunderstorms in the morning, then partly sunny with showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 60 percent. Heat index values in the mid 90s.
TUESDAY NIGHT
Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the lower 70s. Chance of rain 60 percent.
WEDNESDAY
Mostly sunny. Highs in the upper 80s.
WEDNESDAY NIGHT
Partly cloudy. Lows in the upper 60s.

Visible Weather Satellite
LAKE RONKONKOMA, NY 11779
Infrared Weather Satellite
LAKE RONKONKOMA, NY 11779
NEXRAD Weather Radar
LAKE RONKONKOMA, NY 11779

ISLIP, NY 3 hourly weather forecast

weather forecast created  8:00 PM EDT  6/26/2025
Friday
27 JUN 2025
LAKE RONKONKOMA, NY 11779 weather forecast Day 1, 0 hours 2 AM 66° 66° Mostly Cloudy 9%

0% Thunder
( 3% severe)
ENE   10 75% 58°
Low 64° LAKE RONKONKOMA, NY 11779 weather forecast Day 1, 3 hours 5 AM 65° 65° Mostly Cloudy ENE   12 75% 57°
High 73° LAKE RONKONKOMA, NY 11779 weather forecast Day 1, 6 hours 8 AM 67° 67° Mostly Cloudy 5%

0% Thunder
( 1% severe)
E   13 70% 57°

Mostly Cloudy



LAKE RONKONKOMA, NY 11779 weather forecast Day 1, 9 hours 11 AM 71° 71° Mostly Cloudy E   15 57% 55°
LAKE RONKONKOMA, NY 11779 weather forecast Day 1, 12 hours 2 PM 71° 71° Mostly Cloudy 6%

0% Thunder
( 3% severe)
ESE   16 59% 56°
LAKE RONKONKOMA, NY 11779 weather forecast Day 1, 15 hours 5 PM 70° 70° Mostly Cloudy ESE   14 61% 56°
LAKE RONKONKOMA, NY 11779 weather forecast Day 1, 18 hours 8 PM 67° 67° Mostly Cloudy 27%
RAIN
<.01 in
0% Thunder
( 7% severe)
ESE   12 73% 58°
LAKE RONKONKOMA, NY 11779 weather forecast Day 1, 21 hours 11 PM 67° 67° Overcast ESE   9 81% 61°
Saturday
28 JUN 2025
LAKE RONKONKOMA, NY 11779 weather forecast Day 2, 0 hours 2 AM 67° 67° Mostly Cloudy 30%
RAIN
.5–1 in
0% Thunder
( 19% severe)
SE   7 87% 63°
Low 66° LAKE RONKONKOMA, NY 11779 weather forecast Day 2, 3 hours 5 AM 68° 68° Mostly Cloudy SE   7 90% 65°
High 84° LAKE RONKONKOMA, NY 11779 weather forecast Day 2, 6 hours 8 AM 70° 70° Mostly Cloudy 15%
RAIN
<.01 in
0% Thunder
( 20% severe)
SSE   7 93% 68°

Mostly Cloudy

Chance of Rain

LAKE RONKONKOMA, NY 11779 weather forecast Day 2, 9 hours 11 AM 76° 77° Mostly Cloudy S   9 85% 71°
LAKE RONKONKOMA, NY 11779 weather forecast Day 2, 12 hours 2 PM 80° 84° Mostly Cloudy 22%
RAIN
<.01 in
0% Thunder
( 21% severe)
SSW   12 77% 72°
LAKE RONKONKOMA, NY 11779 weather forecast Day 2, 15 hours 5 PM 81° 85° Partly Cloudy SSW   12 74% 72°
LAKE RONKONKOMA, NY 11779 weather forecast Day 2, 18 hours 8 PM 77° 78° Mostly Cloudy 33%
RAIN
***
0% Thunder
( 26% severe)
SSW   9 85% 72°
LAKE RONKONKOMA, NY 11779 weather forecast Day 2, 21 hours 11 PM 75° 75° Mostly Cloudy SW   8 90% 72°

ISLIP, NY extended weather forecast

BAD DAY
BAD DATE
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Low 66° Low 68° Low 63° Low 67° Low 69°
High 81° High 75° High 77° High 80° High 85°
LAKE RONKONKOMA, NY 11779 weather forecast Day 3 LAKE RONKONKOMA, NY 11779 weather forecast Day 4 LAKE RONKONKOMA, NY 11779 weather forecast Day 5 LAKE RONKONKOMA, NY 11779 weather forecast Day 6 LAKE RONKONKOMA, NY 11779 weather forecast Day 7
Overcast
71% Rain
Overcast
82% Rain
Overcast
29% Rain
Mostly Cloudy
47% Rain
Partly Cloudy
40% Rain
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