Slippery Rock, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Slippery Rock weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain61%0.26″87°67°—
- SundayJul 5Rain33%0.18″83°67°-4°
- MondayJul 6T-storm w/ Hail92%0.16″78°68°-5°
- TuesdayJul 7Thunderstorm50%—77°65°-1°
- WednesdayJul 8Overcast——80°64°+3°
- ThursdayJul 9Light Drizzle37%—80°61°0°
- FridayJul 10Drizzle67%0.15″74°67°-6°
AQI 72 (Moderate), driven by PM2.5. AQI up 33 in the last 6 hours — air quality is degrading. PM scrubbed by 2 hours of recent rain — PM2.5 down to 8.1 µg/m³, PM10 to 8.5 µg/m³.
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 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 42
- UV peak
- 1.5 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 42
PM × Wind × Precip
PM scrubbed by 2 hours of recent rain — PM2.5 down to 8.1 µg/m³, PM10 to 8.5 µg/m³.
- PM2.5/PM10
- 0.95
- Wind
- breezy
- Recent rain
- 2h in last 6h
- Pattern
- washed out
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
- 11:16 PM
- Moonset
- 10:23 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Slippery Rock at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: April 22 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 16057
16-Day Forecast — Slippery Rock
- Sat87°67°61%
- Sun83°67°33%
- Mon78°68°92%
- Tue77°65°50%
- Wed80°64°9%
- Thu80°61°37%
- Fri74°67°67%
- Sat73°60°36%
- Sun74°55°22%
- Mon72°54°25%
- Tue74°52°21%
- Wed78°54°35%
- Thu80°57°28%
- Fri81°60°40%
- Sat79°66°35%
- Sun72°66°42%
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 — Slippery Rock
SPC has placed Slippery Rock 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 Slippery Rock
- 16057