Upper Montclair, New Jersey Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Upper Montclair weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Heavy Showers61%1.7″86°71°—
- MondayJul 6Heavy Rain92%1.6″71°65°-15°
- TuesdayJul 7Heavy Drizzle82%0.02″71°63°0°
- WednesdayJul 8Overcast20%—78°62°+7°
- ThursdayJul 9Overcast19%—82°65°+4°
- FridayJul 10Drizzle44%—85°69°+3°
- SaturdayJul 11Overcast30%—84°66°-1°
AQI 41 (Good), driven by Ozone. AQI down 38 over the last 6 hours — air quality is improving sharply. Ozone at AQI 33. Overcast through the UV peak window (cloud cover ~99%) — afternoon ozone should stay flat.
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 ~99%) — afternoon ozone should stay flat.
- Present
- AQI 33
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 7
PM × Wind × Precip
PM2.5 at 5.8 µg/m³, PM10 at 6.0 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.97
- Wind
- calm
- Recent rain
- 1h 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
- 11:14 PM
- Moonset
- 11:06 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Upper Montclair at a glance
- Today vs. normal: 72°F — typical for the season
- Last frost: April 21 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
15-Day Forecast — Upper Montclair
- Sun86°71°61%
- Mon71°65°92%
- Tue71°63°82%
- Wed78°62°20%
- Thu82°65°19%
- Fri85°69°44%
- Sat84°66°30%
- Sun80°64°20%
- Mon71°61°18%
- Tue84°62°18%
- Wed83°67°22%
- Thu87°68°29%
- Fri80°69°28%
- Sat83°68°32%
- Sun90°70°33%
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 Montclair
SPC has placed Upper Montclair in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
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.
Microseason · July 1–5
Cicadas claim the afternoon
Annual cicada buzz begins, peaking in the heat of the day.
Day 186 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
In Upper Montclair, July runs warmest near 75°F and January coldest around 29°F, while December is the wettest month (4.3 inches) and February the driest (3.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 29° | 3.6″ | 13 |
| February | 31° | 3.0″ | 13 |
| March | 39° | 3.8″ | 16 |
| April | 51° | 4.1″ | 17 |
| May | 59° | 3.9″ | 18 |
| June | 69° | 3.9″ | 17 |
| July | 75° | 3.8″ | 17 |
| August | 74° | 4.2″ | 17 |
| September | 67° | 3.7″ | 14 |
| October | 57° | 3.3″ | 12 |
| November | 43° | 3.9″ | 13 |
| December | 34° | 4.3″ | 13 |
Regional context
By the nearest station's NOAA NCEI 1991-2020 normals, Upper Montclair sees 29°F Januarys and 75°F Julys, a 46°F range, plus around 45.4 inches of precipitation across 180 days.
Upper Montclair's precipitation spreads evenly: December peaks at 4.3 inches on 13.2 wet days, while February holds 3.0 inches over 12.9 — no month dominates Upper Montclair's rain calendar. That lines Upper Montclair up with places like Brookdale, NJ, Montclair State University, NJ and Great Notch, NJ, fed by overlapping storm tracks.
By mid-April the frosts ease in Upper Montclair, opening the season for kale, peas, spinach, and parsnips. In Upper Montclair, warm-season transplants — tomatoes, peppers, basil — wait two weeks past Upper Montclair's frost date. Upper Montclair's window closes around mid-November as overnight lows return below freezing. In Upper Montclair, low spots run 4-7°F colder than nearby slopes, nudging Upper Montclair's frost dates a week.
Similar climates: Brookdale, NJ, Montclair State University, NJ, Great Notch, NJ, Clifton, NJ, Glen Ridge, NJ.
Frequently asked
- When does it freeze in Upper Montclair?
- In Upper Montclair, expect the last spring frost near mid-April; Upper Montclair's first autumn frost comes around mid-November.
- What is the rainy season in Upper Montclair?
- December is the wettest month in Upper Montclair, about 4.3 inches on average; the year totals roughly 45 inches.
- What is the warmest month in Upper Montclair?
- Upper Montclair peaks in July, when the mean runs near 75°F.
- What is the coldest month in Upper Montclair?
- January is Upper Montclair's coldest month, averaging about 29°F.
- When can I start a vegetable garden in Upper Montclair?
- Around mid-April, start frost-hardy crops in Upper Montclair; tomatoes and basil belong a fortnight later.
- How many rainy days does Upper Montclair get?
- Upper Montclair averages about 180 days with measurable rain or snow each year.
- What hardiness zone is Upper Montclair?
- Because Upper Montclair bottoms near 29°F in January, that winter low sets Upper Montclair's USDA zone — verify by ZIP.
- What is the 10-day forecast for Upper Montclair?
- Upper Montclair'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 Upper Montclair?
- See this week's day-by-day rain chances for Upper Montclair in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Upper Montclair?
- Current conditions for Upper Montclair and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Upper Montclair forecast updated?
- The Upper Montclair forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Upper Montclair?
- Today's sunrise and sunset times for Upper Montclair 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 Upper Montclair?
- The next few days in Upper Montclair's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Set in a warm-summer humid continental zone, Upper Montclair, New Jersey swings from 29°F in the heart of winter to 75°F at midsummer — a 46°F arc.
Upper Montclair sees close to 45 inches of precipitation annually, falling across some 180 wet days.
Upper Montclair's 46°F range, set by its 40.8°N position, drives frost timing and what thrives in Upper Montclair.
Beaches near Upper Montclair
- Jacob Riis Beach25.5 mi
- Rockaway Beach26.3 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 Upper Montclair
- 07043