Hillsdale, New Jersey Weather
Fireflies rise from the lawn. Day 77 of spring. Read this microseason across nine climate regions →
Hillsdale weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Clear——88°58°—
- FridayJun 5Overcast——93°62°+5°
- SaturdayJun 6Heavy Drizzle38%—92°66°-1°
- SundayJun 7Showers38%0.13″83°64°-9°
- MondayJun 8Overcast——80°57°-3°
- TuesdayJun 9Overcast——85°57°+5°
- WednesdayJun 10Mostly Clear——89°62°+4°
Ozone at AQI 83 — peak already passed at 1 PM under clear skies. AQI up 52 in the last 6 hours — air quality is degrading. Levels should ease through evening.
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 83 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 83
- UV peak
- 0.7 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 83
PM × Wind × Precip
PM2.5 at 7.3 µg/m³ (AQI 41) with a 0.92 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.92
- Wind
- light
- 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
- 3:27 AM
- Moonset
- 12:52 PM
- In sign
- ♒︎ Aquarius
Fireflies rise from the lawn
Hillsdale at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: April 22 (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 — Hillsdale
SPC has placed Hillsdale in the Marginal Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3MRGLMarginal 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.