Delmar, Maryland Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Delmar weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast16%—104°82°—
- SundayJul 5Overcast——98°77°-6°
- MondayJul 6Showers74%0.01″93°73°-5°
- TuesdayJul 7Thunderstorm74%0.02″91°72°-2°
- WednesdayJul 8Light Showers38%—78°68°-13°
- ThursdayJul 9Light Drizzle——91°67°+13°
- FridayJul 10Overcast35%—98°74°+7°
AQI 101 (Unhealthy for Sensitive Groups), driven by Ozone. AQI up 49 in the last 6 hours — air quality is degrading. Ozone at AQI 98 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
CAUTION Sensitive groups (children, elderly, respiratory conditions) should limit prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 98 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 98
- UV peak
- 2.0 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 98
PM × Wind × Precip
PM2.5 at 12.1 µg/m³, PM10 at 13.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.90
- 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
- 10:53 PM
- Moonset
- 10:07 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Delmar at a glance
- Today vs. normal: 27°F above the seasonal normal for this latitude
- Last frost: April 7 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 21875
16-Day Forecast — Delmar
- Sat104°82°16%
- Sun98°77°6%
- Mon93°73°74%
- Tue91°72°74%
- Wed78°68°38%
- Thu91°67°9%
- Fri98°74°35%
- Sat98°74°35%
- Sun86°72°27%
- Mon78°68°22%
- Tue88°68°17%
- Wed91°72°42%
- Thu91°71°43%
- Fri92°72°39%
- Sat97°72°32%
- Sun95°78°38%
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 — Delmar
SPC has placed Delmar 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 Delmar
- 21875