Gaithersburg, Maryland Hail Report and Map: July 28, 2026

Published October 12, 2026 by StormLens · Updated October 13, 2026 · Storm date (Eastern time) July 28, 2026

Was there hail in Gaithersburg, MD on July 28, 2026? Radar estimated hail up to 0.58 inch within 3 miles of the center of Gaithersburg, MD on July 28, 2026 (Eastern time). Among the listed towns, the highest estimate was 0.89 inch within 3 miles of New Market, MD. Radar detected hail aloft in this area between about 4:20 p.m. and 5:50 p.m. ET on July 28, 2026.

Radar-estimated hail swath near Gaithersburg, MD on July 28, 2026; colors show estimated hail sizes

Download the free app to view this hail swath and search an address.

Hail estimates at a glance

Storm date (Eastern time)	July 28, 2026 (Tuesday)
Area	Gaithersburg, MD and 24 nearby towns
Highest radar estimate near a listed town	0.89 inch within 3 miles of New Market, MD
Maximum radar estimate within 3 miles of Gaithersburg	0.58 inch
Approximate radar timing	Between about 4:20 p.m. and 5:50 p.m. ET on July 28, 2026 (Eastern time)
Counties include	Montgomery County, Howard County, Frederick County and Carroll County
Area with radar estimates of 0.5 inch or larger	about 50 square miles
Source	NOAA MRMS radar hail estimates (MESH)

Where did hail fall near Gaithersburg on July 28, 2026?

Radar estimated hail of at least 0.5 inch near 25 towns, including locations in Montgomery County, Howard County, Frederick County and Carroll County. The table lists the maximum within 3 miles of each town's center.

Town	County	Maximum radar estimate within 3 miles of town center
New Market, MD	Frederick County	0.89 inch
Spring Ridge, MD	Frederick County	0.73 inch
Bartonsville, MD	Frederick County	0.73 inch
Mount Airy, MD	Carroll County	0.69 inch
Green Valley, MD	Frederick County	0.63 inch
Gaithersburg, MD	Montgomery County	0.58 inch
Montgomery Village, MD	Montgomery County	0.58 inch
Washington Grove, MD	Montgomery County	0.58 inch
Damascus, MD	Montgomery County	0.57 inch
Clarksburg, MD	Montgomery County	0.57 inch
Rockville, MD	Montgomery County	0.56 inch
Ashton-Sandy Spring, MD	Montgomery County	0.56 inch
Derwood, MD	Montgomery County	0.56 inch
Highland, MD	Howard County	0.56 inch
Olney, MD	Montgomery County	0.55 inch
Fairland, MD	Montgomery County	0.55 inch
Cloverly, MD	Montgomery County	0.55 inch
Colesville, MD	Montgomery County	0.55 inch
Layhill, MD	Montgomery County	0.55 inch
Spencerville, MD	Montgomery County	0.55 inch
Burtonsville, MD	Montgomery County	0.54 inch
Fulton, MD	Howard County	0.54 inch
Scaggsville, MD	Howard County	0.52 inch
Leisure World, MD	Montgomery County	0.52 inch
Rossmoor, MD	Montgomery County	0.52 inch

How big was the hail in Gaithersburg?

Radar estimated hail up to 0.58 inch within 3 miles of the center of Gaithersburg. Among the listed towns, the highest estimate was 0.89 inch within 3 miles of New Market. A town's maximum isn't an estimate for every home. Check the swath for estimates around an address.

What time did the hail hit Gaithersburg?

Radar detected hail aloft in this area between about 4:20 p.m. and 5:50 p.m. ET on July 28, 2026. We used 122 detections near the listed towns to estimate this window in Eastern time. We trim outlying detection times when enough are available, then round down to five-minute marks. It doesn't give an arrival time at an address.

Data source and limits

We use NOAA's MRMS radar product MESH (Maximum Estimated Size of Hail) for hail-size estimates. Each town's figure is the maximum within 3 miles of its center. Nearby search areas can overlap. Each storm date covers one calendar day in Eastern time. Radar estimates don't confirm hail on the ground or roof damage. Hail of 0.5 to 0.75 inch can damage roofs, especially older roofs. An estimate below 1 inch doesn't rule out damage. Read how we calculate sizes and times.