Gaithersburg, MD Air Quality
As of 1:15 AMAir quality index46Good
Air quality is great — a good day to be outside.
Next 24 hours
US AQIAir quality outlook
Worst hour each day- Today49Good
- Sat 1067Moderate
- Sun 11500Hazardous
- Mon 1267Moderate
- Tue 1357Moderate
From our air-quality forecast models (GEOS-CF / GEFS aerosols). AQI uses the US EPA scale.
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Open full mapAbout Gaithersburg weather
Gaithersburg is in Montgomery County, Maryland, United States at 39.14°, -77.20°. Right now it’s 48° and clear; today’s high is 71° with a 0% chance of rain.
Maryland's compact size belies its climatic diversity, spanning from the Atlantic coast to the Appalachian Mountains. The Chesapeake Bay, which bisects the state, significantly influences local weather by moderating temperatures and increasing humidity. The eastern shore and coastal plain have a humid subtropical climate, while the mountainous western region is decidedly continental.
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