Mechanicsville, Virginia Weather
Fireflies pulse through the magnolias. Day 78 of spring. Read this microseason across nine climate regions →
Mechanicsville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 5Overcast——93°60°—
- SaturdayJun 6Overcast——95°64°+2°
- SundayJun 7Drizzle13%0.04″92°69°-3°
- MondayJun 8Overcast——84°63°-8°
- TuesdayJun 9Light Showers—0.04″79°63°-5°
- WednesdayJun 10Light Drizzle17%0.01″71°67°-8°
- ThursdayJun 11Overcast27%—84°67°+13°
AQI 41 (Good), driven by PM2.5. AQI down 8 over the last 6 hours (steady decline since this morning). PM2.5 at 7.5 µg/m³, PM10 at 7.8 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 6 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 40. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 40
- UV peak
- 3.7 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 7.5 µg/m³, PM10 at 7.8 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.96
- Wind
- light
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 4:02 AM
- Moonset
- 2:19 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Mechanicsville at a glance
- Today vs. normal: 7°F below the seasonal normal for this latitude
- Last frost: April 2 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 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 — Mechanicsville
SPC has placed Mechanicsville in the Marginal Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3MRGLMarginal Risk
Isolated severe storms possible. Limited threat for hail or damaging wind.
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.