Mountain Lake Park, Maryland Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Mountain Lake Park weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast27%—86°66°—
- SundayJul 5Overcast34%—85°65°-1°
- MondayJul 6Light Showers77%0.07″79°65°-6°
- TuesdayJul 7Light Drizzle53%—78°61°-1°
- WednesdayJul 8Light Drizzle17%—72°61°-6°
- ThursdayJul 9Overcast14%—83°59°+11°
- FridayJul 10Drizzle67%0.07″70°66°-13°
AQI 59 (Moderate), driven by Ozone. AQI up 8 over the last 6 hours (gradual rise). Ozone at AQI 44 now. With UV 0.4 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 7 around 1 PM.
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 44 now. With UV 0.4 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 7 around 1 PM.
- Present
- AQI 44
- UV peak
- 0.4 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 7
PM × Wind × Precip
PM2.5 at 6.8 µg/m³, PM10 at 7.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.93
- 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).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:10 PM
- Moonset
- 10:22 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Mountain Lake Park at a glance
- Today vs. normal: 5°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.
16-Day Forecast — Mountain Lake Park
- Sat86°66°27%
- Sun85°65°34%
- Mon79°65°77%
- Tue78°61°53%
- Wed72°61°17%
- Thu83°59°14%
- Fri70°66°67%
- Sat79°61°49%
- Sun74°58°34%
- Mon72°55°26%
- Tue75°52°20%
- Wed81°55°46%
- Thu82°59°53%
- Fri74°62°52%
- Sat77°65°53%
- Sun79°63°61%
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 — Mountain Lake Park
SPC has placed Mountain Lake Park in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWMRGLMarginal Risk
- 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 Mountain Lake Park
- 21550