Glenn Dale, Maryland Weather
Fireflies rise from the lawn. Day 76 of spring. Read this microseason across nine climate regions →
Glenn Dale weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Mostly Clear——82°54°—
- ThursdayJun 4Overcast——88°57°+6°
- FridayJun 5Overcast——90°63°+2°
- SaturdayJun 6Overcast12%—94°65°+4°
- SundayJun 7Showers39%0.03″83°66°-11°
- MondayJun 8Overcast28%—76°54°-7°
- TuesdayJun 9Mostly Clear18%—81°50°+5°
Ozone at AQI 75 now. AQI flat over the last 6 hours (within ±3 points). With UV 7.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 73 by mid-afternoon.
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 75 now. With UV 7.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 73 by mid-afternoon.
- Present
- AQI 75
- UV peak
- 7.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 73
PM × Wind × Precip
PM2.5 at 6.1 µg/m³, PM10 at 7.7 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.79
- Wind
- light
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 2:53 AM
- Moonset
- 12:07 PM
- In sign
- ♑︎ Capricorn
Fireflies rise from the lawn
Glenn Dale at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: April 10 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 3, 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.