McKeesport, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
McKeesport weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain39%0.69″97°70°—
- SundayJul 5Overcast80%—90°71°-7°
- MondayJul 6T-storm w/ Hail73%0.05″82°66°-8°
- TuesdayJul 7Foggy36%—83°64°+1°
- WednesdayJul 8Overcast13%—86°58°+3°
- ThursdayJul 9Light Drizzle50%—88°66°+2°
- FridayJul 10Heavy Drizzle55%—81°65°-7°
AQI 59 (Moderate), driven by PM2.5. AQI projected to climb to 76 over the next 6 hours. 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 during the projected peak around 7 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 38 now. With UV 3.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 19 around 1 PM.
- Present
- AQI 38
- UV peak
- 3.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 19
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
- 11:13 PM
- Moonset
- 10:23 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
McKeesport at a glance
- Today vs. normal: 7°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.
ZIP codes: 15131, 15132, 15133, 15135
16-Day Forecast — McKeesport
- Sat97°70°39%
- Sun90°71°80%
- Mon82°66°73%
- Tue83°64°36%
- Wed86°58°13%
- Thu88°66°50%
- Fri81°65°55%
- Sat85°67°41%
- Sun81°64°32%
- Mon73°59°18%
- Tue78°59°18%
- Wed88°65°29%
- Thu92°67°23%
- Fri89°69°26%
- Sat84°69°32%
- Sun88°67°25%
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 — McKeesport
SPC has placed McKeesport 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 McKeesport
- 15132
- 15134