Bartonsville, Maryland Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Bartonsville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast28%—100°75°—
- SundayJul 5Drizzle52%0.03″96°75°-4°
- MondayJul 6Showers78%0.13″80°70°-16°
- TuesdayJul 7Thunderstorm78%2.8″85°66°+5°
- WednesdayJul 8Drizzle34%0.05″77°67°-8°
- ThursdayJul 9Overcast11%—90°66°+13°
- FridayJul 10Light Drizzle43%0.01″86°69°-4°
AQI 88 (Moderate), driven by Ozone. AQI up 37 in the last 6 hours — air quality is degrading. Ozone at AQI 55. Overcast through the UV peak window (cloud cover ~98%) — afternoon ozone should stay flat.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 55. Overcast through the UV peak window (cloud cover ~98%) — afternoon ozone should stay flat.
- Present
- AQI 55
- UV peak
- 0.4 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 7
PM × Wind × Precip
PM2.5 at 9.6 µg/m³, PM10 at 10.1 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.95
- Wind
- breezy
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:02 PM
- Moonset
- 10:13 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Bartonsville at a glance
- Today vs. normal: 18°F above the seasonal normal for this latitude
- Last frost: April 12 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Bartonsville
- Sat100°75°28%
- Sun96°75°52%
- Mon80°70°78%
- Tue85°66°78%
- Wed77°67°34%
- Thu90°66°11%
- Fri86°69°43%
- Sat88°68°31%
- Sun79°65°24%
- Mon82°65°18%
- Tue85°62°17%
- Wed87°63°40%
- Thu91°68°42%
- Fri88°70°38%
- Sat91°69°34%
- Sun88°69°44%
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 — Bartonsville
SPC has placed Bartonsville in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight 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 Bartonsville
- 21704
- 21754