Lake Success, New York Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Lake Success weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast32%—98°77°—
- SundayJul 5Heavy Rain48%1.2″89°71°-9°
- MondayJul 6Light Showers89%0.24″72°70°-17°
- TuesdayJul 7Light Drizzle80%0.02″71°64°-1°
- WednesdayJul 8Overcast20%—81°64°+10°
- ThursdayJul 9Overcast11%—88°71°+7°
- FridayJul 10Overcast47%—92°76°+4°
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
- breezy
- 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
- 10:50 PM
- Moonset
- 9:57 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Lake Success 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.
16-Day Forecast — Lake Success
- Sat99°77°32%
- Sun89°71°48%
- Mon72°70°89%
- Tue71°64°80%
- Wed81°64°20%
- Thu88°71°11%
- Fri92°76°47%
- Sat90°78°40%
- Sun87°73°23%
- Mon76°68°21%
- Tue81°69°23%
- Wed86°70°31%
- Thu93°74°43%
- Fri93°76°45%
- Sat92°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 — Lake Success
SPC has placed Lake Success 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.
Microseason · July 1–5
Cicadas claim the afternoon
Annual cicada buzz begins, peaking in the heat of the day.
Day 185 of 365 · Wedge 37 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
Lake Success's warmest month is July (~76°F mean) and its coldest is January (~31°F). Rainfall peaks in December (4.3 inches) and bottoms out in February (3.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 31° | 3.6″ | 13 |
| February | 33° | 3.0″ | 13 |
| March | 40° | 3.8″ | 15 |
| April | 50° | 4.0″ | 17 |
| May | 59° | 3.8″ | 18 |
| June | 69° | 3.6″ | 16 |
| July | 76° | 3.3″ | 16 |
| August | 75° | 4.0″ | 17 |
| September | 69° | 3.4″ | 13 |
| October | 58° | 3.3″ | 11 |
| November | 45° | 4.0″ | 13 |
| December | 36° | 4.3″ | 13 |
Regional context
In Lake Success, NOAA NCEI 1991-2020 normals put January near 31°F and July near 76°F — a 44°F seasonal arc — with about 44 inches of precipitation over 175 rainy or snowy days.
No season owns Lake Success's rain: December reaches 4.3 inches across 13.4 days and February keeps 3.0 inches on 12.8, an even spread through Lake Success's year. That even rhythm groups Lake Success with places like University Gardens, NY, Russell Gardens, NY and Thomaston, NY.
Around mid-April, Lake Success sheds its freezing nights — peas, lettuce, spinach, and radishes go into Lake Success's beds. Lake Success's heat-lovers — tomatoes, peppers, squash — hold off until Lake Success's frost risk clears, 10-14 days on. Frost returns to Lake Success near mid-November, ending the tender-crop season. A creek-bottom lot in Lake Success can lag Lake Success's last frost 7-10 days behind a south slope.
Similar climates: University Gardens, NY, Russell Gardens, NY, Thomaston, NY, Manhasset Hills, NY, Great Neck Plaza, NY.
Frequently asked
- When does it freeze in Lake Success?
- Lake Success's last spring frost lands near mid-April, and in Lake Success the first fall frost follows around mid-November.
- What is the rainy season in Lake Success?
- Rainfall in Lake Success peaks in December near 4.3 inches, out of about 44 inches annually.
- What is the warmest month in Lake Success?
- Lake Success peaks in July, when the mean runs near 76°F.
- What is the coldest month in Lake Success?
- January is Lake Success's coldest month, averaging about 31°F.
- When can I start a vegetable garden in Lake Success?
- Around mid-April, start frost-hardy crops in Lake Success; tomatoes and basil belong a fortnight later.
- How many rainy days does Lake Success get?
- Expect roughly 175 wet days a year in Lake Success.
- What hardiness zone is Lake Success?
- Since January in Lake Success averages 31°F, Lake Success's USDA zone follows that floor — confirm it by ZIP.
- What is the 10-day forecast for Lake Success?
- Lake Success's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Lake Success?
- See this week's day-by-day rain chances for Lake Success in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Lake Success?
- Current conditions for Lake Success and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Lake Success forecast updated?
- The Lake Success forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Lake Success?
- Today's sunrise and sunset times for Lake Success are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Lake Success?
- The next few days in Lake Success's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
In Lake Success, New York, the warm-summer humid continental climate runs from about 31°F in January to 76°F in July, a 45°F seasonal range.
Rain and snow bring Lake Success roughly 44 inches a year across approximately 175 measurable-precipitation days.
From 40.8°N, Lake Success sees a 45°F seasonal swing that governs Lake Success's planting and frost windows.
Beaches near Lake Success
- Long Beach NY12.7 mi
- Rockaway Beach14.4 mi
- Jones Beach16 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 Lake Success
- 11042
- 11020