Perry Hall, Maryland Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Perry Hall weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Showers24%1.2″102°78°—
- SundayJul 5Drizzle59%0.03″94°75°-8°
- MondayJul 6Light Showers84%0.06″82°72°-12°
- TuesdayJul 7Thunderstorm82%0.03″87°71°+5°
- WednesdayJul 8Heavy Drizzle34%0.07″78°66°-9°
- ThursdayJul 9Overcast12%—91°68°+13°
- FridayJul 10Light Drizzle44%0.01″92°74°+1°
AQI 94 (Moderate), driven by Ozone. AQI up 40 in the last 6 hours — air quality is degrading. Ozone at AQI 50. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting 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
- 0.3 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 8.2 µg/m³, PM10 to 8.5 µg/m³.
- PM2.5/PM10
- 0.96
- Wind
- breezy
- 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
- 10:10 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Perry Hall at a glance
- Today vs. normal: 24°F above the seasonal normal for this latitude
- Last frost: April 12 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 21128
16-Day Forecast — Perry Hall
- Sat102°78°24%
- Sun94°75°59%
- Mon82°72°84%
- Tue87°71°82%
- Wed78°66°34%
- Thu91°68°12%
- Fri92°74°44%
- Sat90°72°35%
- Sun82°69°26%
- Mon77°68°17%
- Tue87°66°17%
- Wed91°67°37%
- Thu92°72°45%
- Fri93°75°46%
- Sat94°74°40%
- Sun92°75°46%
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 — Perry Hall
SPC has placed Perry 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 Perry Hall
- 21234
- 21128
- 21236