Glen Echo, Maryland Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Glen Echo weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Drizzle20%0.03″102°80°—
- SundayJul 5Light Rain40%0.15″98°76°-4°
- MondayJul 6Light Drizzle78%0.02″86°75°-12°
- TuesdayJul 7Thunderstorm77%0.58″90°72°+4°
- WednesdayJul 8Light Rain20%0.11″77°70°-13°
- ThursdayJul 9Overcast26%—93°69°+16°
- FridayJul 10Drizzle44%0.07″92°74°-1°
AQI 101 (Unhealthy for Sensitive Groups), driven by Ozone. AQI up 45 in the last 6 hours — air quality is degrading. Ozone at AQI 100 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
CAUTION Sensitive groups (children, elderly, respiratory conditions) should limit prolonged outdoor exertion, especially during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 100 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 100
- UV peak
- 4.3 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 100
PM × Wind × Precip
PM2.5 at 9.5 µg/m³, PM10 at 10.6 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.90
- Wind
- light
- 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
- 11:00 PM
- Moonset
- 10:13 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Glen Echo at a glance
- Today vs. normal: 29°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.
ZIP code: 20812
16-Day Forecast — Glen Echo
- Sat102°80°20%
- Sun98°76°40%
- Mon86°75°78%
- Tue90°72°77%
- Wed77°70°20%
- Thu93°69°26%
- Fri92°74°44%
- Sat92°70°37%
- Sun83°71°24%
- Mon83°70°21%
- Tue89°67°19%
- Wed94°70°33%
- Thu95°72°37%
- Fri89°76°42%
- Sat96°74°44%
- Sun90°71°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 — Glen Echo
SPC has placed Glen Echo 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 Glen Echo
- 20812