Merrifield, Virginia Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Merrifield weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Light Drizzle37%0.01″95°73°—
- MondayJul 6Heavy Rain85%4.3″90°73°-5°
- TuesdayJul 7Light Showers85%0.02″93°69°+3°
- WednesdayJul 8Light Showers46%0.02″78°68°-15°
- ThursdayJul 9Heavy Showers45%0.86″92°69°+14°
- FridayJul 10Light Drizzle47%—87°70°-5°
- SaturdayJul 11Light Drizzle27%—81°72°-6°
AQI 55 (Moderate), driven by PM2.5. AQI projected to climb to 96 over the next 6 hours. PM2.5 at 18.7 µg/m³ (AQI 69) with a 0.96 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 7 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 40 now. With UV 3.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 20 around 1 PM.
- Present
- AQI 40
- UV peak
- 3.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 20
PM × Wind × Precip
PM2.5 at 18.7 µg/m³ (AQI 69) with a 0.96 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.96
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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
- 11:25 PM
- Moonset
- 11:19 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Merrifield at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: April 9 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Merrifield
- Sun95°73°37%
- Mon90°73°85%
- Tue93°69°85%
- Wed78°68°46%
- Thu92°69°45%
- Fri87°70°47%
- Sat81°72°27%
- Sun82°69°27%
- Mon89°64°24%
- Tue97°70°13%
- Wed85°70°14%
- Thu84°64°30%
- Fri91°65°33%
- Sat98°70°27%
- Sun91°74°37%
- Mon90°72°42%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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 — Merrifield
SPC has placed Merrifield 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 Merrifield
- 22031
- 22042
- 22180
- 22081
- 22082
- 22119