Jamesburg, New Jersey Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Jamesburg weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Drizzle59%0.03″98°73°—
- SundayJul 5Heavy Rain59%3.4″87°73°-11°
- MondayJul 6Heavy Rain93%2.0″78°71°-9°
- TuesdayJul 7Heavy Drizzle91%0.01″71°65°-7°
- WednesdayJul 8Overcast23%—81°64°+10°
- ThursdayJul 9Light Drizzle11%—85°66°+4°
- FridayJul 10Drizzle34%0.09″89°72°+4°
AQI 89 (Moderate), driven by PM2.5. AQI down 19 over the last 6 hours — air quality is improving sharply. PM scrubbed by 3 hours of recent rain — PM2.5 down to 8.1 µg/m³, PM10 to 8.2 µg/m³.
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 44. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 44
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 5
PM × Wind × Precip
PM scrubbed by 3 hours of recent rain — PM2.5 down to 8.1 µg/m³, PM10 to 8.2 µg/m³.
- PM2.5/PM10
- 0.99
- Wind
- light
- Recent rain
- 3h in last 6h
- Pattern
- washed out
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
- 11:07 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Jamesburg at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: April 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Jamesburg
- Sat98°73°59%
- Sun87°73°59%
- Mon78°71°93%
- Tue71°65°91%
- Wed81°64°23%
- Thu85°66°11%
- Fri89°72°34%
- Sat88°67°34%
- Sun78°65°25%
- Mon87°65°24%
- Tue90°65°18%
- Wed93°68°34%
- Thu88°70°34%
- Fri87°71°30%
- Sat83°69°26%
- Sun96°75°36%
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 — Jamesburg
SPC has placed Jamesburg in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWSLGTSlight 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.
ZIP codes in Jamesburg
- 08831