Donora, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Donora weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain45%0.43″97°69°—
- SundayJul 5Showers41%1.1″88°71°-9°
- MondayJul 6Thunderstorm83%0.02″79°69°-9°
- TuesdayJul 7Light Showers47%—76°65°-3°
- WednesdayJul 8Light Drizzle11%0.01″81°65°+5°
- ThursdayJul 9Light Drizzle33%—85°62°+4°
- FridayJul 10Drizzle71%0.05″75°67°-10°
AQI 68 (Moderate), driven by Ozone. Ozone at AQI 100 now. With UV 8.9 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 119 around 1 PM.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 100 now. With UV 8.9 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 119 around 1 PM.
- Present
- AQI 100
- UV peak
- 8.9 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 119
PM × Wind × Precip
PM2.5 at 7.7 µg/m³, PM10 at 8.2 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.94
- Wind
- breezy
- Recent rain
- 0h 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
- 11:13 PM
- Moonset
- 10:23 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Donora at a glance
- Today vs. normal: 25°F above the seasonal normal for this latitude
- 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: 15033
16-Day Forecast — Donora
- Sat97°69°45%
- Sun88°71°41%
- Mon79°69°83%
- Tue76°65°47%
- Wed81°65°11%
- Thu85°62°33%
- Fri75°67°71%
- Sat81°64°51%
- Sun75°59°30%
- Mon77°54°24%
- Tue77°55°23%
- Wed81°56°29%
- Thu84°58°30%
- Fri77°61°30%
- Sat83°68°32%
- Sun79°67°23%
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 — Donora
SPC has placed Donora 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 Donora
- 15033