Karns City, Pennsylvania Weather
Fireflies rise from the lawn. Day 77 of spring. Read this microseason across nine climate regions →
Karns City weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——81°50°—
- FridayJun 5Overcast——83°56°+2°
- SaturdayJun 6Showers83%0.01″80°64°-3°
- SundayJun 7Showers54%—83°60°+3°
- MondayJun 8Overcast——80°53°-3°
- TuesdayJun 9Overcast——81°58°+1°
- WednesdayJun 10Overcast21%—83°56°+2°
Ozone at AQI 120 now. AQI up 9 over the last 6 hours (gradual rise). With UV 7.9 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 126 by mid-afternoon.
CAUTION Sensitive groups (children, elderly, respiratory conditions) should limit prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 120 now. With UV 7.9 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 126 by mid-afternoon.
- Present
- AQI 120
- UV peak
- 7.9 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 126
PM × Wind × Precip
PM2.5 at 5.6 µg/m³ (AQI 31) with a 1.00 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 1.00
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 3:50 AM
- Moonset
- 1:15 PM
- In sign
- ♒︎ Aquarius
Fireflies rise from the lawn
Karns City at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- 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 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 — Karns City
SPC has placed Karns City in the Slight Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3SLGTSlight 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.