Darnestown, Maryland Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Darnestown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle37%0.01″100°79°—
- SundayJul 5Overcast40%—97°75°-3°
- MondayJul 6Showers77%—87°73°-10°
- TuesdayJul 7Light Showers77%0.06″79°69°-8°
- WednesdayJul 8Light Drizzle37%0.01″77°67°-2°
- ThursdayJul 9Overcast11%—94°67°+17°
- FridayJul 10Light Drizzle46%—97°72°+3°
AQI 82 (Moderate), driven by PM2.5. AQI up 6 over the last 6 hours (gradual rise). PM2.5 at 11.2 µg/m³ (AQI 55) with a 0.96 fine-to-coarse ratio and 6 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
Ozone × UV × Sky
Ozone at AQI 50. Overcast through the UV peak window (cloud cover ~67%) — afternoon ozone should stay flat.
- Present
- AQI 50
- UV peak
- 0.1 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 6
PM × Wind × Precip
PM2.5 at 11.2 µg/m³ (AQI 55) with a 0.96 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.96
- Wind
- light
- 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
- 11:19 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Darnestown at a glance
- Today vs. normal: 11°F above the seasonal normal for this latitude
- Last frost: April 11 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Darnestown
- Sat100°79°37%
- Sun97°75°40%
- Mon87°73°77%
- Tue79°69°77%
- Wed77°67°37%
- Thu94°67°11%
- Fri97°72°46%
- Sat82°68°36%
- Sun80°65°24%
- Mon85°58°20%
- Tue91°62°18%
- Wed89°65°35%
- Thu89°63°35%
- Fri91°68°39%
- Sat91°70°46%
- Sun87°69°52%
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 — Darnestown
SPC has placed Darnestown 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 Darnestown
- 20878
- 20874