Lake Wynonah, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Lake Wynonah weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast28%—95°73°—
- SundayJul 5Heavy Rain54%2.1″90°72°-5°
- MondayJul 6Thunderstorm92%0.76″77°70°-13°
- TuesdayJul 7Showers80%0.02″78°63°+1°
- WednesdayJul 8Light Drizzle18%0.01″73°60°-5°
- ThursdayJul 9Light Drizzle14%—87°63°+14°
- FridayJul 10Light Drizzle53%0.01″82°66°-5°
AQI 89 (Moderate), driven by Ozone. AQI up 27 in the last 6 hours — air quality is degrading. Ozone at AQI 75 — 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.
What's driving it
Ozone × UV × Sky
Ozone at AQI 75 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 75
- UV peak
- 1.8 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 75
PM × Wind × Precip
PM2.5 at 7.4 µg/m³, PM10 at 7.9 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.94
- Wind
- breezy
- Recent rain
- 0h 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
- 10:59 PM
- Moonset
- 10:07 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Lake Wynonah at a glance
- Today vs. normal: 24°F above the seasonal normal for this latitude
- Last frost: April 20 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Lake Wynonah
- Sat96°72°28%
- Sun90°73°54%
- Mon77°70°92%
- Tue78°63°80%
- Wed73°60°18%
- Thu87°63°14%
- Fri82°66°53%
- Sat83°66°25%
- Sun78°63°26%
- Mon82°63°18%
- Tue84°61°18%
- Wed85°58°37%
- Thu87°62°53%
- Fri88°64°37%
- Sat87°67°35%
- Sun83°69°46%
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 — Lake Wynonah
SPC has placed Lake Wynonah in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWSLGTSlight 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 Lake Wynonah
- 17972
- 17922