Westminster, Maryland Weather
Solstice approaches — longest light. Day 88 of spring. Read this microseason across nine climate regions →
Westminster weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Light Drizzle43%—74°62°—
- TuesdayJun 16Overcast——78°56°+4°
- WednesdayJun 17Drizzle13%—81°61°+3°
- ThursdayJun 18Drizzle44%0.01″86°71°+5°
- FridayJun 19Light Drizzle34%0.01″77°59°-9°
- SaturdayJun 20Overcast——74°56°-3°
- SundayJun 21Light Drizzle13%0.01″67°59°-7°
AQI 31 (Good), driven by Ozone. AQI down 24 over the last 6 hours — air quality is improving sharply. Ozone at AQI 32 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 10 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 32 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 10 around 1 PM.
- Present
- AQI 32
- UV peak
- 3.3 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 10
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).








































A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:41 AM
- Moonset
- 8:51 PM
- In sign
- ♊︎ Gemini
Solstice approaches — longest light
Westminster at a glance
- Today vs. normal: 11°F below the seasonal normal for this latitude
- Last frost: April 13 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
15-Day Forecast — Westminster
- Mon74°62°43%
- Tue78°56°1%
- Wed81°61°13%
- Thu86°71°44%
- Fri77°59°34%
- Sat74°56°4%
- Sun67°59°13%
- Mon73°59°34%
- Tue76°53°31%
- Wed79°57°16%
- Thu84°62°15%
- Fri83°64°34%
- Sat79°59°24%
- Sun79°62°26%
- Mon95°70°33%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, 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.
ZIP codes in Westminster
- 21158
- 21157