Slippery Rock University, Pennsylvania Weather
Fireflies rise from the lawn. Day 76 of spring. Read this microseason across nine climate regions →
Slippery Rock University weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Clear——77°45°—
- ThursdayJun 4Overcast——81°53°+4°
- FridayJun 5Overcast——77°57°-4°
- SaturdayJun 6Showers67%—79°60°+2°
- SundayJun 7Showers67%—76°62°-3°
- MondayJun 8Partly Cloudy——76°55°0°
- TuesdayJun 9Clear——82°55°+6°
Ozone at AQI 49 now. AQI up 12 over the last 6 hours (gradual rise). With UV 7.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 51 by mid-afternoon.
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 49 now. With UV 7.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 51 by mid-afternoon.
- Present
- AQI 49
- UV peak
- 7.8 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 51
PM × Wind × Precip
PM2.5 at 6.5 µg/m³ (AQI 36) with a 0.82 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.82
- Wind
- light
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 3:15 AM
- Moonset
- 12:13 PM
- In sign
- ♑︎ Capricorn
Fireflies rise from the lawn
Slippery Rock University at a glance
- Today vs. normal: 75°F — typical for the season
- Last frost: April 22 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 3, 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.