Cape St. Claire, Maryland Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Cape St. Claire weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast72%—95°76°—
- MondayJul 6Rain76%0.21″87°74°-8°
- TuesdayJul 7Light Showers75%0.01″80°71°-7°
- WednesdayJul 8Overcast43%—78°70°-2°
- ThursdayJul 9Overcast33%—87°70°+9°
- FridayJul 10Light Drizzle40%—87°73°0°
- SaturdayJul 11Overcast24%—84°70°-3°
AQI 54 (Moderate), driven by PM2.5. AQI down 42 over the last 6 hours — air quality is improving sharply. PM2.5 at 13.1 µg/m³ (AQI 58) with a 0.98 fine-to-coarse ratio and 3 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
PM × Wind × Precip
PM2.5 at 13.1 µg/m³ (AQI 58) with a 0.98 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.98
- Wind
- calm
- 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
- 11:22 PM
- Moonset
- 11:15 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Cape St. Claire at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: April 10 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
15-Day Forecast — Cape St. Claire
- Sun95°76°72%
- Mon87°74°76%
- Tue80°71°75%
- Wed78°70°43%
- Thu87°70°33%
- Fri87°73°40%
- Sat84°70°24%
- Sun83°73°22%
- Mon81°70°21%
- Tue84°69°14%
- Wed86°71°12%
- Thu92°72°28%
- Fri88°71°29%
- Sat86°71°30%
- Sun89°71°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 — Cape St. Claire
SPC has placed Cape St. Claire in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- 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 Cape St. Claire
- 21409