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Lake Ronkonkoma, NY Weather Forecast

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Lake Ronkonkoma, NY Weather Forecast

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Lake Ronkonkoma NY weather - Mostly Cloudy - 74°F
Mostly Cloudy
74°F
Updated 8:05 pm
Feels Like 81°F
Humidity 90%
Wind W 6 mph
Barometer  30.01 in
Dew Point 71°F
Lake Ronkonkoma NY weather - Mostly Cloudy - 23°C
Mostly Cloudy
23°C
Updated 8:05 pm
Feels Like 27°C
Humidity 90%
Wind W 10 km/h
Barometer  101.6 kPa
Dew Point 22°C
WX Settings

Lake Ronkonkoma Weather Forecast

THIS AFTERNOON TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT
Lake Ronkonkoma, NY Weather - This Afternoon Chance Of T-Storm Lake Ronkonkoma, NY Weather - Tonight Clearing Lake Ronkonkoma, NY Weather - Saturday Sunny Lake Ronkonkoma, NY Weather - Saturday Night Mostly Clear Lake Ronkonkoma, NY Weather - Sunday Chance Of Showers Lake Ronkonkoma, NY Weather - Sunday Night Chance Of Showers Lake Ronkonkoma, NY Weather - Monday Chance Of Showers Lake Ronkonkoma, NY Weather - Monday Night Chance Of Showers Lake Ronkonkoma, NY Weather - Tuesday Chance Of Showers Lake Ronkonkoma, NY Weather - Tuesday Night Chance Of T-Storm Lake Ronkonkoma, NY Weather - Wednesday Chance Of T-Storm Lake Ronkonkoma, NY Weather - Wednesday Night Chance Of Showers
Chance of T-Storm Clearing Sunny Mostly Clear Chance of Showers Chance of Showers Chance of Showers Chance of Showers Chance of Showers Chance of T-Storm Chance of T-Storm Chance of Showers
Hi: 79°FHi: 26°C
 Lo: 61°FLo: 16°C Hi: 79°FHi: 26°C
 Lo: 61°FLo: 16°C Hi: 81°FHi: 27°C
 Lo: 69°FLo: 21°C Hi: 81°FHi: 27°C
 Lo: 69°FLo: 21°C Hi: 80°FHi: 27°C
 Lo: 69°FLo: 21°C Hi: 81°FHi: 27°C
 Lo: 69°FLo: 21°C
POP: 20% POP: 20% POP: 50% POP: 40% POP: 40% POP: 40% POP: 50% POP: 50% POP: 50%
POP = Probability of Precipitation.
Weather Outlook Updated: 213 PM EDT Fri Aug 28 2026 Lake Ronkonkoma, NY Weather - WeatherWorld.com

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Issued: 225 PM EDT Fri Aug 28 2026

Key Messages

1) Dry and seasonable this weekend.

2) Turning unsettled Monday through Wednesday of next week. There is the potential for impacts, but confidence of impacts remains low this far out in time.


Discussion

... .KEY MESSAGE 1... A stalled frontal boundary which has remained nearby and over the area does progress further east during tonight. Cyclonic curvature aloft gradually decreases with heights rising slightly into the start of the weekend. This will lead to much improved sensible wx and...