Ernstville, Maryland Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Ernstville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain47%0.31″100°74°—
- SundayJul 5Rain44%0.11″93°75°-7°
- MondayJul 6Light Drizzle77%0.01″83°70°-10°
- TuesdayJul 7Heavy Showers77%1.1″90°64°+7°
- WednesdayJul 8Light Drizzle15%—81°63°-9°
- ThursdayJul 9Overcast13%—94°64°+13°
- FridayJul 10Light Drizzle43%—88°67°-6°
AQI 82 (Moderate), driven by Ozone. AQI up 29 in the last 6 hours — air quality is degrading. Ozone at AQI 76 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
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 76 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 76
- UV peak
- 2.2 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 76
PM × Wind × Precip
PM2.5 at 8.1 µg/m³, PM10 at 9.0 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.90
- Wind
- light
- 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
- 11:05 PM
- Moonset
- 10:16 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Ernstville at a glance
- Today vs. normal: 28°F above the seasonal normal for this latitude
- Last frost: April 14 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Ernstville
- Sat100°74°47%
- Sun93°75°44%
- Mon83°70°77%
- Tue90°64°77%
- Wed81°63°15%
- Thu94°64°13%
- Fri88°67°43%
- Sat91°67°29%
- Sun83°63°20%
- Mon83°61°18%
- Tue88°58°17%
- Wed92°60°39%
- Thu93°62°33%
- Fri85°66°33%
- Sat92°68°31%
- Sun84°68°37%
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 — Ernstville
SPC has placed Ernstville 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 Ernstville
- 21711