New Columbus, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
New Columbus weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain29%0.98″91°70°—
- SundayJul 5Rain59%0.23″86°70°-5°
- MondayJul 6Light Showers92%0.34″75°65°-11°
- TuesdayJul 7Drizzle77%0.03″80°62°+5°
- WednesdayJul 8Light Drizzle34%0.02″71°60°-9°
- ThursdayJul 9Light Drizzle21%0.02″87°60°+16°
- FridayJul 10Light Drizzle68%0.02″80°64°-7°
AQI 74 (Moderate), driven by Ozone. AQI up 23 in the last 6 hours — air quality is degrading. Ozone at AQI 56 — 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 56 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 56
- UV peak
- 0.6 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 56
PM × Wind × Precip
PM2.5 at 7.2 µg/m³, PM10 at 7.6 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.95
- 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
- 11:00 PM
- Moonset
- 10:07 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
New Columbus at a glance
- Today vs. normal: 20°F above the seasonal normal for this latitude
- Last frost: April 23 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — New Columbus
- Sat91°70°29%
- Sun86°70°59%
- Mon75°65°92%
- Tue80°62°77%
- Wed71°60°34%
- Thu87°60°21%
- Fri80°64°68%
- Sat78°65°35%
- Sun79°61°30%
- Mon80°58°27%
- Tue81°57°21%
- Wed83°54°29%
- Thu86°56°48%
- Fri87°59°40%
- Sat84°64°48%
- Sun76°67°48%
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 — New Columbus
SPC has placed New Columbus in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWMRGLMarginal 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 New Columbus
- 17878