Setauket, New York Weather
Solstice approaches — longest light. Day 88 of spring. Read this microseason across nine climate regions →
Setauket weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Rain86%0.11″78°65°—
- TuesdayJun 16Overcast——78°59°0°
- WednesdayJun 17Light Drizzle11%—78°58°0°
- ThursdayJun 18Light Drizzle34%0.01″92°68°+14°
- FridayJun 19Light Drizzle25%—81°70°-11°
- SaturdayJun 20Overcast18%—76°63°-5°
- SundayJun 21Overcast——78°64°+2°
AQI 39 (Good), driven by Ozone. AQI down 11 over the last 6 hours (gradual decline). Ozone at AQI 39 now. With UV 8.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 45 around 1 PM.
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 39 now. With UV 8.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 45 around 1 PM.
- Present
- AQI 39
- UV peak
- 8.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 45
PM × Wind × Precip
PM2.5 at 5.5 µg/m³, PM10 at 5.7 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.96
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
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
- 5:18 AM
- Moonset
- 8:40 PM
- In sign
- ♋︎ Cancer
Solstice approaches — longest light
Setauket at a glance
- Today vs. normal: 75°F — typical for the season
- Last frost: April 22 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Setauket
- Mon78°65°86%
- Tue78°59°0%
- Wed78°58°11%
- Thu92°68°34%
- Fri81°70°25%
- Sat76°63°18%
- Sun78°64°6%
- Mon69°59°28%
- Tue78°59°28%
- Wed79°62°18%
- Thu79°63°9%
- Fri78°63°21%
- Sat84°64°26%
- Sun84°69°17%
- Mon92°71°30%
- Tue88°72°26%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, 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.
Beaches near Setauket
- Robert Moses Beach23.8 mi
Each linked page shows live water temperature, wave height, swim and surf verdicts, tides, and rip-current risk from NDBC + NOAA + NWS data.
ZIP codes in Setauket
- 11733