One Loudoun, Virginia Weather
Solstice approaches — longest light. Day 88 of spring. Read this microseason across nine climate regions →
One Loudoun weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast33%—80°65°—
- TuesdayJun 16Overcast——82°56°+2°
- WednesdayJun 17Overcast——88°65°+6°
- ThursdayJun 18Thunderstorm38%—92°69°+4°
- FridayJun 19Overcast47%—84°67°-8°
- SaturdayJun 20Overcast——78°55°-6°
- SundayJun 21Light Drizzle13%0.01″77°59°-1°
AQI 32 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 38 now. With UV 4.7 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 17 around 1 PM.
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 38 now. With UV 4.7 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 17 around 1 PM.
- Present
- AQI 38
- UV peak
- 4.7 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 17
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
- 5:45 AM
- Moonset
- 8:50 PM
- In sign
- ♋︎ Cancer
Solstice approaches — longest light
One Loudoun at a glance
- Today vs. normal: 77°F — typical for the season
- Last frost: April 10 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — One Loudoun
- Mon80°65°33%
- Tue82°56°3%
- Wed88°65°7%
- Thu92°69°38%
- Fri84°67°47%
- Sat78°55°6%
- Sun77°59°13%
- Mon68°61°30%
- Tue78°60°29%
- Wed80°54°17%
- Thu82°56°16%
- Fri84°56°32%
- Sat89°63°20%
- Sun96°69°21%
- Mon99°72°30%
- Tue93°72°30%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, 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.
ZIP codes in One Loudoun
- 20147