Deal Island, Maryland Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Deal Island weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast22%—95°80°—
- SundayJul 5Overcast——93°79°-2°
- MondayJul 6Thunderstorm79%—90°76°-3°
- TuesdayJul 7T-storm w/ Hail79%—89°70°-1°
- WednesdayJul 8Light Drizzle39%—81°67°-8°
- ThursdayJul 9Partly Cloudy——90°66°+9°
- FridayJul 10Light Drizzle31%0.01″97°74°+7°
AQI 166 (Unhealthy), driven by Ozone. AQI up 74 in the last 6 hours — air quality is degrading. Ozone at AQI 142. Overcast through the UV peak window (cloud cover ~64%) — 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 142. Overcast through the UV peak window (cloud cover ~64%) — afternoon ozone should stay flat.
- Present
- AQI 142
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 17
PM × Wind × Precip
PM2.5 at 17.2 µg/m³, PM10 at 19.4 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.89
- 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
- 11:19 PM
- Moonset
- 11:14 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Deal Island at a glance
- Today vs. normal: 10°F above the seasonal normal for this latitude
- Last frost: April 5 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 21821
16-Day Forecast — Deal Island
- Sat95°80°22%
- Sun93°79°9%
- Mon90°76°79%
- Tue89°70°79%
- Wed81°67°39%
- Thu90°66°7%
- Fri97°74°31%
- Sat81°70°31%
- Sun83°68°26%
- Mon86°64°26%
- Tue85°63°21%
- Wed89°68°40%
- Thu91°70°38%
- Fri91°70°38%
- Sat87°71°40%
- Sun94°72°39%
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 — Deal Island
SPC has placed Deal Island 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 Deal Island
- 21821