Manassas, Virginia Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Manassas weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast41%—95°68°—
- MondayJul 6Showers88%0.02″92°72°-3°
- TuesdayJul 7Heavy Drizzle88%—82°71°-10°
- WednesdayJul 8Drizzle46%0.02″78°68°-4°
- ThursdayJul 9Overcast34%—96°67°+18°
- FridayJul 10Light Drizzle52%0.02″98°71°+2°
- SaturdayJul 11Light Drizzle36%—82°70°-16°
AQI 49 (Good), driven by PM2.5. AQI down 30 over the last 6 hours — air quality is improving sharply. PM2.5 at 10.2 µg/m³ (AQI 53) with a 0.97 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.
What's driving it
PM × Wind × Precip
PM2.5 at 10.2 µg/m³ (AQI 53) with a 0.97 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.97
- 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
- 11:26 PM
- Moonset
- 11:20 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Manassas at a glance
- Today vs. normal: 72°F — typical for the season
- Last frost: April 8 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 20109, 20110, 20111, 20112
15-Day Forecast — Manassas
- Sun95°70°41%
- Mon92°72°88%
- Tue82°71°88%
- Wed78°68°46%
- Thu96°67°34%
- Fri98°71°52%
- Sat82°70°36%
- Sun81°67°19%
- Mon86°61°18%
- Tue92°60°12%
- Wed92°63°26%
- Thu90°67°32%
- Fri91°67°32%
- Sat92°70°38%
- Sun89°67°39%
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 — Manassas
SPC has placed Manassas in the Slight Risk category for severe thunderstorms tomorrow.
- TODAYMRGLMarginal Risk
- TOMORROWSLGTSlight Risk
- 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 Manassas
- 20110
- 20108