Free Union, Virginia Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Free Union weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain62%0.17″101°73°—
- SundayJul 5Drizzle34%0.04″97°71°-4°
- MondayJul 6T-storm w/ Hail90%0.47″92°71°-5°
- TuesdayJul 7Heavy Drizzle73%0.02″92°69°0°
- WednesdayJul 8Drizzle18%—87°66°-5°
- ThursdayJul 9Overcast20%—97°65°+10°
- FridayJul 10Overcast36%—98°69°+1°
AQI 59 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM scrubbed by 3 hours of recent rain — PM2.5 down to 8.8 µg/m³, PM10 to 9.3 µg/m³.
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 37. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 37
- UV peak
- 0.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 4
PM × Wind × Precip
PM scrubbed by 3 hours of recent rain — PM2.5 down to 8.8 µg/m³, PM10 to 9.3 µg/m³.
- PM2.5/PM10
- 0.95
- Wind
- breezy
- Recent rain
- 3h 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
- 11:05 PM
- Moonset
- 10:20 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Free Union at a glance
- Today vs. normal: 5°F above the seasonal normal for this latitude
- Last frost: April 5 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 22940
16-Day Forecast — Free Union
- Sat101°73°62%
- Sun97°71°34%
- Mon92°71°90%
- Tue92°69°73%
- Wed87°66°18%
- Thu97°65°20%
- Fri98°69°36%
- Sat92°69°40%
- Sun80°64°29%
- Mon81°62°15%
- Tue92°61°15%
- Wed95°64°35%
- Thu94°69°34%
- Fri91°71°40%
- Sat96°70°45%
- Sun94°69°43%
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 — Free Union
SPC has placed Free Union in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWSLGTSlight Risk
- DAY 3MRGLMarginal 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.
ZIP codes in Free Union
- 22901
- 22940