Metuchen, New Jersey Weather
Solstice approaches — longest light. Day 88 of spring. Read this microseason across nine climate regions →
Metuchen weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Light Rain92%0.11″80°67°—
- TuesdayJun 16Overcast——79°56°-1°
- WednesdayJun 17Drizzle31%0.06″84°61°+5°
- ThursdayJun 18Light Drizzle49%—92°69°+8°
- FridayJun 19Light Drizzle30%0.02″84°68°-8°
- SaturdayJun 20Partly Cloudy——80°61°-4°
- SundayJun 21Overcast——67°61°-13°
AQI 40 (Good), driven by Ozone. AQI down 24 over the last 6 hours — air quality is improving sharply. Ozone at AQI 32 now. With UV 2.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 9 around 1 PM.
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 32 now. With UV 2.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 9 around 1 PM.
- Present
- AQI 32
- UV peak
- 2.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 9
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
- 5:25 AM
- Moonset
- 8:44 PM
- In sign
- ♊︎ Gemini
Solstice approaches — longest light
Metuchen at a glance
- Today vs. normal: 7°F below the seasonal normal for this latitude
- Last frost: April 19 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
15-Day Forecast — Metuchen
- Mon80°67°92%
- Tue79°56°0%
- Wed84°61°31%
- Thu92°69°49%
- Fri84°68°30%
- Sat80°61°9%
- Sun67°61°5%
- Mon73°60°28%
- Tue81°60°36%
- Wed84°62°20%
- Thu82°65°17%
- Fri87°64°30%
- Sat86°66°22%
- Sun87°65°27%
- Mon99°72°28%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, 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.
Microseason · June 11–15
Solstice approaches — longest light
Sunrise before 5:30 AM; sunset nearly 8:30 PM.
Day 166 of 365 · Wedge 33 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
Metuchen's warmest month is July (~77°F mean) and its coldest is January (~30°F). Rainfall peaks in December (4.2 inches) and bottoms out in February (3.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 30° | 3.4″ | 14 |
| February | 32° | 3.0″ | 13 |
| March | 41° | 3.7″ | 15 |
| April | 52° | 3.9″ | 17 |
| May | 61° | 3.7″ | 18 |
| June | 70° | 3.8″ | 17 |
| July | 77° | 3.5″ | 16 |
| August | 75° | 4.0″ | 17 |
| September | 69° | 3.6″ | 13 |
| October | 58° | 3.1″ | 11 |
| November | 44° | 3.7″ | 13 |
| December | 35° | 4.2″ | 13 |
Regional context
By the nearest station's NOAA NCEI 1991-2020 normals, Metuchen sees 30°F Januarys and 77°F Julys, a 46°F range, plus around 43.6 inches of precipitation across 175 days.
Rainfall in Metuchen stays even across the calendar: December tops out at 4.2 inches over 13.3 rainy days, and February still logs 3.0 inches across 12.5 — a narrow range for Metuchen. That even rhythm groups Metuchen with places like Menlo Park Terrace, NJ, Fords, NJ and Iselin, NJ.
The cool-season window in Metuchen starts at mid-April, when nights stop freezing — think peas, lettuce, spinach, and radishes. Hold Metuchen's tender crops — tomatoes, peppers, basil — until 10-14 days past Metuchen's last frost. It shuts near mid-November, when freezes return to Metuchen and tender plants need cover. In Metuchen, low spots run 4-7°F colder than nearby slopes, nudging Metuchen's frost dates a week.
Similar climates: Menlo Park Terrace, NJ, Fords, NJ, Iselin, NJ, Keasbey, NJ, South Plainfield, NJ.
Frequently asked
- When does it freeze in Metuchen?
- Frost typically leaves Metuchen by mid-April and returns to Metuchen near mid-November.
- What is the rainy season in Metuchen?
- Rainfall in Metuchen peaks in December near 4.2 inches, out of about 44 inches annually.
- What is the warmest month in Metuchen?
- On average July tops the year in Metuchen at about 77°F.
- What is the coldest month in Metuchen?
- The coldest stretch in Metuchen falls in January, around 30°F on average.
- When can I start a vegetable garden in Metuchen?
- Around mid-April, start frost-hardy crops in Metuchen; tomatoes and basil belong a fortnight later.
- How many rainy days does Metuchen get?
- Metuchen records around 175 days of measurable precipitation annually.
- What hardiness zone is Metuchen?
- Since January in Metuchen averages 30°F, Metuchen's USDA zone follows that floor — confirm it by ZIP.
- What is the 10-day forecast for Metuchen?
- Metuchen'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 Metuchen?
- See this week's day-by-day rain chances for Metuchen in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Metuchen?
- Current conditions for Metuchen and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Metuchen forecast updated?
- The Metuchen forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Metuchen?
- Day length in Metuchen peaks around the June solstice — earliest sunrise and latest sunset — and is shortest near the December solstice.
- How accurate is the weather forecast for Metuchen?
- The next few days in Metuchen's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
The warm-summer humid continental climate of Metuchen, New Jersey carries typical Januarys near 30°F and Julys around 77°F — 47°F of seasonal travel.
Metuchen sees close to 44 inches of precipitation annually, falling across some 175 wet days.
From 40.5°N, Metuchen sees a 47°F seasonal swing that governs Metuchen's planting and frost windows.
Beaches near Metuchen
- Jacob Riis Beach25.7 mi
- Rockaway Beach Beach27.8 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 Metuchen
- 08840