Hellertown, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Hellertown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain41%0.13″99°73°—
- SundayJul 5Heavy Rain92%0.98″94°72°-5°
- MondayJul 6Thunderstorm92%0.32″73°63°-21°
- TuesdayJul 7Light Drizzle70%0.05″72°58°-1°
- WednesdayJul 8Clear13%—84°56°+12°
- ThursdayJul 9Light Drizzle34%0.01″88°62°+4°
- FridayJul 10Light Drizzle43%—88°68°0°
AQI 55 (Moderate), driven by PM2.5. AQI up 9 over the last 6 hours (gradual rise). PM2.5 at 15.0 µg/m³ (AQI 62) with a 0.92 fine-to-coarse ratio and 5 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
Ozone × UV × Sky
Ozone at AQI 42 now. With UV 4.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 26 around 1 PM.
- Present
- AQI 42
- UV peak
- 4.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 26
PM × Wind × Precip
PM2.5 at 15.0 µg/m³ (AQI 62) with a 0.92 fine-to-coarse ratio and 5 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:55 PM
- Moonset
- 10:04 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Hellertown at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: April 19 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 18055
16-Day Forecast — Hellertown
- Sat99°73°41%
- Sun94°72°92%
- Mon73°63°92%
- Tue72°58°70%
- Wed84°56°13%
- Thu88°62°34%
- Fri88°68°43%
- Sat84°70°28%
- Sun71°66°31%
- Mon69°64°17%
- Tue82°63°17%
- Wed88°64°30%
- Thu92°70°27%
- Fri93°71°36%
- Sat80°70°45%
- Sun87°67°36%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 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 — Hellertown
SPC has placed Hellertown in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWMRGLMarginal 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 Hellertown
- 18055