Locust Valley, New York Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Locust Valley weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle36%0.02″98°76°—
- SundayJul 5Heavy Rain49%2.3″90°71°-8°
- MondayJul 6Light Rain89%0.13″72°70°-18°
- TuesdayJul 7Light Drizzle82%0.04″70°64°-2°
- WednesdayJul 8Overcast21%—81°63°+11°
- ThursdayJul 9Overcast12%—91°71°+10°
- FridayJul 10Overcast53%—92°75°+1°
AQI 109 (Unhealthy for Sensitive Groups), driven by Ozone. AQI up 50 in the last 6 hours — air quality is degrading. Ozone at AQI 166 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
CAUTION Sensitive groups (children, elderly, respiratory conditions) should limit prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 166 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 166
- UV peak
- 3.9 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 166
PM × Wind × Precip
PM2.5 at 16.5 µg/m³, PM10 at 19.0 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.87
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:49 PM
- Moonset
- 9:57 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Locust Valley at a glance
- Today vs. normal: 26°F above the seasonal normal for this latitude
- Last frost: April 21 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 11560
16-Day Forecast — Locust Valley
- Sat98°76°36%
- Sun90°71°49%
- Mon72°70°89%
- Tue70°64°82%
- Wed81°63°21%
- Thu91°71°12%
- Fri92°75°53%
- Sat89°78°42%
- Sun86°73°24%
- Mon75°68°23%
- Tue83°68°24%
- Wed88°69°31%
- Thu92°74°43%
- Fri95°75°45%
- Sat94°77°35%
- Sun93°78°48%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 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 — Locust Valley
SPC has placed Locust Valley in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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 Locust Valley
- Jones Beach20.1 mi
- Long Beach NY20.3 mi
- Rockaway Beach24.2 mi
Each linked page shows live water temperature, wave height, swim and surf verdicts, tides, and rip-current risk from NDBC + NOAA + NWS data.
ZIP codes in Locust Valley
- 11560