Knox, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Knox weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain55%1.7″89°66°—
- SundayJul 5Rain74%0.13″82°67°-7°
- MondayJul 6Thunderstorm77%0.11″77°64°-5°
- TuesdayJul 7Overcast30%—83°60°+6°
- WednesdayJul 8Overcast10%—85°58°+2°
- ThursdayJul 9Light Drizzle47%—86°62°+1°
- FridayJul 10Light Drizzle47%—79°65°-7°
AQI 45 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 8.6 µg/m³ (AQI 48) with a 0.97 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
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 34 now. With UV 3.7 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 12 around 1 PM.
- Present
- AQI 34
- UV peak
- 3.7 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 12
PM × Wind × Precip
PM2.5 at 8.6 µg/m³ (AQI 48) with a 0.97 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.97
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:14 PM
- Moonset
- 10:20 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Knox at a glance
- Today vs. normal: 72°F — typical for the season
- Last frost: April 23 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 16232
16-Day Forecast — Knox
- Sat88°66°55%
- Sun82°67°74%
- Mon77°64°77%
- Tue83°60°30%
- Wed85°58°10%
- Thu86°62°47%
- Fri79°65°47%
- Sat86°64°37%
- Sun77°62°29%
- Mon74°58°17%
- Tue77°57°18%
- Wed86°64°33%
- Thu91°64°40%
- Fri84°67°45%
- Sat83°67°37%
- Sun87°61°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 — Knox
SPC has placed Knox 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 Knox
- 16232