Mount Royal, Pennsylvania Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Mount Royal weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Heavy Rain67%2.3″93°70°—
- MondayJul 6Rain38%0.19″81°71°-12°
- TuesdayJul 7Drizzle57%0.09″72°63°-9°
- WednesdayJul 8Light Drizzle48%0.03″73°63°+1°
- ThursdayJul 9Light Drizzle40%—90°67°+17°
- FridayJul 10Light Drizzle53%0.06″83°68°-7°
- SaturdayJul 11Overcast35%—82°66°-1°
AQI 82 (Moderate), driven by Ozone. AQI up 49 in the last 6 hours — air quality is degrading. Ozone at AQI 71 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 9 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 71 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 71
- UV peak
- 1.7 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 71
PM × Wind × Precip
PM2.5 at 11.4 µg/m³, PM10 at 12.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.93
- Wind
- calm
- Recent rain
- 1h 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
- 11:25 PM
- Moonset
- 11:17 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Mount Royal at a glance
- Today vs. normal: 20°F above the seasonal normal for this latitude
- Last frost: April 16 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Mount Royal
- Sun94°70°67%
- Mon81°71°38%
- Tue72°63°57%
- Wed73°63°48%
- Thu90°67°40%
- Fri83°68°53%
- Sat82°66°35%
- Sun77°66°22%
- Mon86°65°21%
- Tue67°62°13%
- Wed75°63°15%
- Thu78°60°29%
- Fri84°63°23%
- Sat80°64°23%
- Sun78°65°23%
- Mon71°66°31%
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 — Mount Royal
SPC has placed Mount Royal 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 Mount Royal
- 17315