Charlotte Hall, Maryland Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Charlotte Hall weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle44%0.04″100°78°—
- SundayJul 5Light Drizzle23%0.02″98°76°-2°
- MondayJul 6T-storm w/ Hail78%0.03″90°73°-8°
- TuesdayJul 7Light Showers78%—84°68°-6°
- WednesdayJul 8Showers38%0.07″77°69°-7°
- ThursdayJul 9Partly Cloudy12%—94°67°+17°
- FridayJul 10Overcast34%—99°71°+5°
AQI 111 (Unhealthy for Sensitive Groups), driven by PM2.5. AQI up 59 in the last 6 hours — air quality is degrading. PM scrubbed by 2 hours of recent rain — PM2.5 down to 9.4 µg/m³, PM10 to 10.0 µg/m³.
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 ~95%) — 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
PM scrubbed by 2 hours of recent rain — PM2.5 down to 9.4 µg/m³, PM10 to 10.0 µg/m³.
- PM2.5/PM10
- 0.94
- Wind
- windy
- Recent rain
- 2h in last 6h
- Pattern
- washed out
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
Charlotte Hall at a glance
- Today vs. normal: 11°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: 20622
16-Day Forecast — Charlotte Hall
- Sat100°78°44%
- Sun98°76°23%
- Mon90°73°78%
- Tue84°68°78%
- Wed77°69°38%
- Thu94°67°12%
- Fri99°71°34%
- Sat96°70°40%
- Sun83°69°29%
- Mon80°66°24%
- Tue88°65°16%
- Wed91°67°41%
- Thu90°68°43%
- Fri94°70°43%
- Sat97°70°39%
- Sun92°71°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 — Charlotte Hall
SPC has placed Charlotte Hall in the Enhanced Risk category for severe thunderstorms today.
- TODAYENHEnhanced Risk
- TOMORROWSLGTSlight Risk
- DAY 3TSTMGeneral Thunderstorms
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 Charlotte Hall
- 20622
- 20659