Union Bridge, Maryland Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Union Bridge weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain49%0.43″98°76°—
- SundayJul 5Drizzle47%0.03″95°73°-3°
- MondayJul 6Light Showers84%0.03″84°70°-11°
- TuesdayJul 7Heavy Drizzle83%0.04″76°68°-8°
- WednesdayJul 8Light Drizzle33%0.02″74°65°-2°
- ThursdayJul 9Overcast11%—93°66°+19°
- FridayJul 10Overcast43%—90°71°-3°
AQI 86 (Moderate), driven by Ozone. AQI up 22 in the last 6 hours — air quality is degrading. Ozone at AQI 76. Overcast through the UV peak window (cloud cover ~68%) — 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 76. Overcast through the UV peak window (cloud cover ~68%) — afternoon ozone should stay flat.
- Present
- AQI 76
- UV peak
- 0.1 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 9
PM × Wind × Precip
PM2.5 at 8.0 µg/m³, PM10 at 8.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.94
- Wind
- calm
- 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
- 11:26 PM
- Moonset
- 11:18 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Union Bridge at a glance
- Today vs. normal: 5°F above the seasonal normal for this latitude
- Last frost: April 13 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 21791
16-Day Forecast — Union Bridge
- Sat98°78°49%
- Sun95°75°47%
- Mon84°70°84%
- Tue76°68°83%
- Wed74°65°33%
- Thu93°66°11%
- Fri90°71°43%
- Sat84°65°30%
- Sun81°64°27%
- Mon84°57°17%
- Tue90°60°16%
- Wed85°64°35%
- Thu88°61°46%
- Fri91°62°46%
- Sat90°69°40%
- Sun85°68°52%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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 — Union Bridge
SPC has placed Union Bridge in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWSLGTSlight 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 Union Bridge
- 21791