Lake Ronkonkoma, New York Weather
Fireflies rise from the lawn. Day 77 of spring. Read this microseason across nine climate regions →
Lake Ronkonkoma weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Mostly Clear——87°56°—
- FridayJun 5Overcast——88°58°+1°
- SaturdayJun 6Heavy Drizzle38%0.02″92°66°+4°
- SundayJun 7Showers38%0.20″86°67°-6°
- MondayJun 8Overcast——77°59°-9°
- TuesdayJun 9Overcast——83°58°+6°
- WednesdayJun 10Partly Cloudy——89°61°+6°
Ozone at AQI 73 now. AQI flat over the last 6 hours (within ±3 points). With UV 8.1 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 79 by mid-afternoon.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 73 now. With UV 8.1 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 79 by mid-afternoon.
- Present
- AQI 73
- UV peak
- 8.1 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 79
PM × Wind × Precip
PM2.5 at 10.7 µg/m³ (AQI 54) with a 0.86 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.86
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 3:23 AM
- Moonset
- 12:49 PM
- In sign
- ♒︎ Aquarius
Fireflies rise from the lawn
Lake Ronkonkoma at a glance
- Today vs. normal: 11°F above the seasonal normal for this latitude
- Last frost: April 21 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Lake Ronkonkoma
SPC has placed Lake Ronkonkoma in the General Thunderstorms category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
Beaches near Lake Ronkonkoma
- Robert Moses Beach16.4 mi
- Jones Beach Beach26.2 mi
Each linked page shows live water temperature, wave height, swim and surf verdicts, tides, and rip-current risk from NDBC + NOAA + NWS data.