Coraopolis, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Coraopolis weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Rain35%0.11″95°70°—
- SundayJul 5Rain78%0.18″87°72°-8°
- MondayJul 6Thunderstorm66%0.10″82°67°-5°
- TuesdayJul 7Foggy30%—87°66°+5°
- WednesdayJul 8Overcast——88°62°+1°
- ThursdayJul 9Overcast50%—90°68°+2°
- FridayJul 10Heavy Drizzle53%—83°67°-7°
AQI 59 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 22.9 µg/m³ (AQI 77) with a 0.99 fine-to-coarse ratio and 3 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 38. Overcast through the UV peak window (cloud cover ~66%) — afternoon ozone should stay flat.
- Present
- AQI 38
- UV peak
- 3.7 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 9
PM × Wind × Precip
PM2.5 at 22.9 µg/m³ (AQI 77) with a 0.99 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.99
- 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
- 10:24 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Coraopolis at a glance
- Today vs. normal: 6°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: 15108
16-Day Forecast — Coraopolis
- Sat95°70°35%
- Sun87°72°78%
- Mon82°67°66%
- Tue87°66°30%
- Wed88°62°9%
- Thu90°68°50%
- Fri83°67°53%
- Sat88°67°36%
- Sun83°64°28%
- Mon76°59°15%
- Tue80°60°13%
- Wed87°66°27%
- Thu92°69°19%
- Fri93°71°45%
- Sat85°69°35%
- Sun89°67°35%
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 — Coraopolis
SPC has placed Coraopolis in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- 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 Coraopolis
- 15108