Unionville, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Unionville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain60%0.16″87°67°—
- SundayJul 5Light Drizzle31%0.02″83°67°-4°
- MondayJul 6T-storm w/ Hail84%0.09″78°68°-5°
- TuesdayJul 7Thunderstorm42%0.01″78°64°0°
- WednesdayJul 8Overcast——81°64°+3°
- ThursdayJul 9Light Drizzle24%—82°61°+1°
- FridayJul 10Light Showers68%0.35″73°67°-9°
AQI 89 (Moderate), driven by Ozone. AQI up 40 in the last 6 hours — air quality is degrading. Ozone at AQI 88 — 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 during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 88 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 88
- UV peak
- 2.3 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 88
PM × Wind × Precip
PM scrubbed by 2 hours of recent rain — PM2.5 down to 7.4 µg/m³, PM10 to 8.1 µg/m³.
- PM2.5/PM10
- 0.91
- Wind
- light
- Recent rain
- 2h in last 6h
- Pattern
- washed out
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
- 11:15 PM
- Moonset
- 10:22 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Unionville at a glance
- Today vs. normal: 14°F above the seasonal normal for this latitude
- Last frost: April 22 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Unionville
- Sat88°67°60%
- Sun83°66°31%
- Mon78°68°84%
- Tue78°64°42%
- Wed81°64°7%
- Thu82°61°24%
- Fri73°67°68%
- Sat72°61°30%
- Sun74°56°23%
- Mon74°53°21%
- Tue76°52°22%
- Wed78°54°35%
- Thu80°56°28%
- Fri80°59°40%
- Sat80°66°35%
- Sun72°65°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 — Unionville
SPC has placed Unionville 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 Unionville
- 16001