Centreville, Maryland Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Centreville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle28%0.02″102°80°—
- SundayJul 5Drizzle31%0.02″94°76°-8°
- MondayJul 6Light Showers76%—87°72°-7°
- TuesdayJul 7Light Showers72%—87°70°0°
- WednesdayJul 8Light Showers35%0.18″79°68°-8°
- ThursdayJul 9Partly Cloudy10%—90°68°+11°
- FridayJul 10Overcast34%—94°74°+4°
AQI 158 (Unhealthy), driven by Ozone. AQI up 103 in the last 6 hours — air quality is degrading. Ozone at AQI 103. Overcast through the UV peak window (cloud cover ~88%) — afternoon ozone should stay flat.
LIMIT OUTDOORS Limit prolonged outdoor exertion. Sensitive groups should avoid outdoor exertion. Consider rescheduling outdoor activities until AQI improves.
What's driving it
Ozone × UV × Sky
Ozone at AQI 103. Overcast through the UV peak window (cloud cover ~88%) — afternoon ozone should stay flat.
- Present
- AQI 103
- UV peak
- 0.2 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 12
PM × Wind × Precip
PM2.5 at 7.6 µg/m³, PM10 at 8.0 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.95
- Wind
- breezy
- Recent rain
- 1h 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:56 PM
- Moonset
- 10:08 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Centreville at a glance
- Today vs. normal: 24°F above the seasonal normal for this latitude
- Last frost: April 10 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 21617
16-Day Forecast — Centreville
- Sat102°80°28%
- Sun94°76°31%
- Mon87°72°76%
- Tue87°70°72%
- Wed79°68°35%
- Thu90°68°10%
- Fri94°74°34%
- Sat93°75°34%
- Sun83°71°23%
- Mon79°67°17%
- Tue86°66°17%
- Wed91°68°34%
- Thu92°72°35%
- Fri91°75°32%
- Sat91°75°35%
- Sun92°76°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 — Centreville
SPC has placed Centreville in the Enhanced Risk category for severe thunderstorms today.
- TODAYENHEnhanced Risk
- TOMORROWSLGTSlight Risk
- DAY 3TSTMGeneral Thunderstorms
Numerous severe storms likely. Tornadoes, large hail, and damaging wind gusts possible across the area. Track NWS warnings if storms develop.
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 Centreville
- 21617