Knoxville, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Knoxville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Rain51%0.15″91°70°—
- SundayJul 5Rain67%0.26″85°67°-6°
- MondayJul 6Light Drizzle74%0.04″70°61°-15°
- TuesdayJul 7Light Drizzle52%—74°60°+4°
- WednesdayJul 8Light Drizzle——83°58°+9°
- ThursdayJul 9Light Drizzle43%0.01″86°61°+3°
- FridayJul 10Light Drizzle49%0.02″76°62°-10°
AQI 42 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 47 now. With UV 4.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 19 around 1 PM.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 7 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 47 now. With UV 4.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 19 around 1 PM.
- Present
- AQI 47
- UV peak
- 4.3 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 19
PM × Wind × Precip
PM2.5 at 7.5 µg/m³, PM10 at 7.9 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.95
- Wind
- light
- 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
- 11:06 PM
- Moonset
- 10:11 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Knoxville at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: April 28 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 16928
16-Day Forecast — Knoxville
- Sat91°70°51%
- Sun85°67°67%
- Mon70°61°74%
- Tue74°60°52%
- Wed83°58°7%
- Thu86°61°43%
- Fri76°62°49%
- Sat79°65°29%
- Sun77°63°31%
- Mon71°63°22%
- Tue76°62°25%
- Wed84°64°35%
- Thu86°65°29%
- Fri85°68°29%
- Sat80°66°27%
- Sun81°60°32%
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 — Knoxville
SPC has placed Knoxville 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 Knoxville
- 16928