Union City, Pennsylvania Weather
Honeysuckle sweetens the night. Day 90 of spring. Read this microseason across nine climate regions →
Union City weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 17Light Drizzle51%0.01″74°55°—
- ThursdayJun 18Rain60%0.20″71°60°-3°
- FridayJun 19Light Drizzle18%—66°50°-5°
- SaturdayJun 20Light Drizzle10%—66°49°0°
- SundayJun 21Drizzle43%—64°51°-2°
- MondayJun 22Overcast57%—65°46°+1°
- TuesdayJun 23Overcast21%—72°50°+7°
AQI 32 (Good), driven by Ozone. AQI down 5 over the last 6 hours (gradual decline). Ozone at AQI 30. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
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 30. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 30
- UV peak
- 3.2 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 6
PM × Wind × Precip
PM2.5 at 5.3 µg/m³, PM10 at 5.6 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 8:11 AM
- Moonset
- 11:03 PM
- In sign
- ♌︎ Leo
Honeysuckle sweetens the night
Union City at a glance
- Today vs. normal: 8°F below the seasonal normal for this latitude
- Last frost: April 27 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Union City
- Wed74°55°51%
- Thu71°60°60%
- Fri66°50°18%
- Sat66°49°10%
- Sun64°51°43%
- Mon65°46°57%
- Tue72°50°21%
- Wed72°54°18%
- Thu75°59°26%
- Fri73°58°24%
- Sat83°58°24%
- Sun81°67°43%
- Mon82°68°46%
- Tue76°67°43%
- Wed79°65°39%
- Thu76°58°48%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 17, 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 — Union City
SPC has placed Union City in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
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 Union City
- 16438