Mill Creek, Pennsylvania Weather
Solstice approaches — longest light. Day 86 of spring. Read this microseason across nine climate regions →
Mill Creek weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 13Overcast——86°64°—
- SundayJun 14Light Drizzle61%0.03″91°68°+5°
- MondayJun 15Overcast46%—76°49°-15°
- TuesdayJun 16Light Drizzle——74°52°-2°
- WednesdayJun 17Light Drizzle12%0.03″85°54°+11°
- ThursdayJun 18Drizzle55%0.13″81°61°-4°
- FridayJun 19Light Drizzle26%0.02″78°58°-3°
AQI 41 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±4 points). Ozone at AQI 41 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 18 around 1 PM.
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 41 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 18 around 1 PM.
- Present
- AQI 41
- UV peak
- 3.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 18
PM × Wind × Precip
PM2.5 at 5.9 µg/m³ (AQI 33) with a 0.91 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.91
- 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).








































Cut your thistles before St. John, you will have two instead of one.
- Moonrise
- 3:51 AM
- Moonset
- 7:46 PM
- In sign
- ♉︎ Taurus
Solstice approaches — longest light
Mill Creek at a glance
- Today vs. normal: 9°F below the seasonal normal for this latitude
- Last frost: April 19 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Prune spring-blooming shrubs after flowers fade.
15-Day Forecast — Mill Creek
- Sat86°64°0%
- Sun91°68°61%
- Mon76°49°46%
- Tue74°52°4%
- Wed85°54°12%
- Thu81°61°55%
- Fri78°58°26%
- Sat79°52°8%
- Sun81°55°18%
- Mon74°56°24%
- Tue80°50°23%
- Wed85°53°35%
- Thu88°61°37%
- Fri82°61°42%
- Sat79°55°42%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 13, 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 — Mill Creek
SPC has placed Mill Creek in the Slight Risk category for severe thunderstorms tomorrow.
- TODAYNONENo severe risk
- TOMORROWSLGTSlight Risk
- 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 Mill Creek
- 16652
- 17060