Allentown, New Jersey Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Allentown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Rain72%0.11″86°73°—
- MondayJul 6Rain94%0.43″76°72°-10°
- TuesdayJul 7Heavy Drizzle86%0.07″72°66°-4°
- WednesdayJul 8Overcast34%—75°64°+3°
- ThursdayJul 9Light Drizzle18%—84°62°+9°
- FridayJul 10Light Drizzle45%—87°68°+3°
- SaturdayJul 11Overcast37%—84°60°-3°
AQI 47 (Good), driven by PM2.5. AQI down 54 over the last 6 hours — air quality is improving sharply. PM2.5 at 9.2 µg/m³ (AQI 51) with a 0.98 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
PM × Wind × Precip
PM2.5 at 9.2 µg/m³ (AQI 51) with a 0.98 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.98
- 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
- 11:08 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Allentown at a glance
- Today vs. normal: 73°F — typical for the season
- Last frost: April 17 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 08501
15-Day Forecast — Allentown
- Sun86°73°72%
- Mon76°72°94%
- Tue72°66°86%
- Wed75°64°34%
- Thu84°62°18%
- Fri87°68°45%
- Sat84°60°37%
- Sun78°62°24%
- Mon75°63°14%
- Tue85°60°17%
- Wed86°64°19%
- Thu93°66°27%
- Fri86°71°29%
- Sat86°68°29%
- Sun91°68°29%
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 — Allentown
SPC has placed Allentown in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
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 Allentown
- 08501