Cobb Island, Maryland Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Cobb Island weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Drizzle57%0.05″97°77°—
- SundayJul 5Overcast22%—93°76°-4°
- MondayJul 6Thunderstorm75%0.17″88°75°-5°
- TuesdayJul 7Light Drizzle75%—82°73°-6°
- WednesdayJul 8Showers37%—78°71°-4°
- ThursdayJul 9Partly Cloudy15%—91°71°+13°
- FridayJul 10Overcast35%—100°75°+9°
AQI 111 (Unhealthy for Sensitive Groups), driven by PM2.5. AQI up 59 in the last 6 hours — air quality is degrading. PM2.5 at 9.4 µg/m³, PM10 at 10.0 µg/m³ — typical background levels with no transport signature.
CAUTION Sensitive groups (children, elderly, respiratory conditions) should limit prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 50. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 50
- UV peak
- 0.2 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 6
PM × Wind × Precip
PM2.5 at 9.4 µg/m³, PM10 at 10.0 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.94
- Wind
- breezy
- 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
- 10:58 PM
- Moonset
- 10:12 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Cobb Island at a glance
- Today vs. normal: 7°F above the seasonal normal for this latitude
- Last frost: April 6 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 20625
16-Day Forecast — Cobb Island
- Sat97°77°57%
- Sun93°76°22%
- Mon88°75°75%
- Tue82°73°75%
- Wed78°71°37%
- Thu91°71°15%
- Fri100°75°35%
- Sat94°76°38%
- Sun85°71°29%
- Mon79°69°26%
- Tue86°67°15%
- Wed91°70°41%
- Thu88°72°43%
- Fri90°75°43%
- Sat97°75°39%
- Sun92°75°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 — Cobb Island
SPC has placed Cobb Island in the Enhanced Risk category for severe thunderstorms today.
- TODAYENHEnhanced Risk
- TOMORROWSLGTSlight Risk
- DAY 3MRGLMarginal Risk
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 Cobb Island
- 20625
- 20661
- 20664