Upper Greenwood Lake, New Jersey Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Upper Greenwood Lake weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Rain73%0.21″81°68°—
- MondayJul 6Light Rain88%0.31″71°65°-10°
- TuesdayJul 7Drizzle83%0.03″64°58°-7°
- WednesdayJul 8Overcast18%—76°56°+12°
- ThursdayJul 9Light Drizzle27%—78°57°+2°
- FridayJul 10Light Drizzle38%—80°61°+2°
- SaturdayJul 11Overcast19%—81°53°+1°
AQI 36 (Good), driven by PM2.5. AQI down 5 over the last 6 hours (gradual decline). PM2.5 at 10.6 µg/m³ (AQI 54) with a 0.93 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
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 33. Overcast through the UV peak window (cloud cover ~85%) — afternoon ozone should stay flat.
- Present
- AQI 33
- UV peak
- 1.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 4
PM × Wind × Precip
PM2.5 at 10.6 µg/m³ (AQI 54) with a 0.93 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.93
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:15 PM
- Moonset
- 11:06 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Upper Greenwood Lake at a glance
- Today vs. normal: 69°F — typical for the season
- Last frost: April 23 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
15-Day Forecast — Upper Greenwood Lake
- Sun81°68°73%
- Mon71°65°88%
- Tue64°58°83%
- Wed76°56°18%
- Thu78°57°27%
- Fri80°61°38%
- Sat81°53°19%
- Sun78°57°24%
- Mon69°54°20%
- Tue83°55°16%
- Wed82°58°17%
- Thu85°60°39%
- Fri76°64°26%
- Sat80°61°42%
- Sun86°63°37%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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 — Upper Greenwood Lake
SPC has placed Upper Greenwood Lake in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Isolated severe storms possible. Limited threat for hail or damaging wind.
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.
ZIP codes in Upper Greenwood Lake
- 07421