88°
Chance Showers And Thunderstorms
69%
15
Baltimore County, MD · Chesapeake Bay
Hammerman Beach (Gunpowder Falls)
7200 Graces Quarters Rd, Middle River, MD 21220
Part of Gunpowder Falls State Park. A 1,500-foot sandy swim beach on Dundee Creek with lifeguards, bathhouse, and paddle boat rentals. Popular with Baltimore County families, often crowded on weekends.
Today's Conditions
Skip the beach today.
69% rain · Thunderstorms · NWS alert active
Full NWS forecast for This Afternoon
A chance of showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a high near 88. Southwest wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Tonight
A chance of showers and thunderstorms before 4am. Some of the storms could be severe. Mostly cloudy, with a low around 78. West wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Weather
- 88°F air — ideal beach weather
- 69% rain — rain likely at some point
Water
- 84°F water — warm — full-day swim weather
- Moderate nettle risk — 40% probability — expect some stings
Safety
- Thunderstorms — stay off the water when storms approach
- NWS alert active — tornado watch issued july 18 at 4:33pm edt until july 18 at 9:00pm edt by nws baltimore md/washington dc
8 /100
skip
0 Swim
24 Sunbathe
0 Walk
22 Photo
Best for sunbathing today
Weather alert in effect
Tornado Watch issued July 18 at 4:33PM EDT until July 18 at 9:00PM EDT by NWS Baltimore MD/Washington DC
Flood Watch issued July 18 at 11:43AM EDT until July 18 at 8:00PM EDT by NWS Baltimore MD/Washington DC
Heat Advisory issued July 18 at 7:50AM EDT until July 18 at 7:00PM EDT by NWS Baltimore MD/Washington DC
Air Quality Alert issued July 17 at 4:40PM EDT by NWS Baltimore MD/Washington DC
Atmosphere
Air Temp
88°F
Light Thunderstorms and Light Rain
Wind
14 mph
SW
Rain
69%
This Afternoon
UV Peak
9 Very High
High 11 AM–02 PM · burn in ~22m
Burn-free before 09 AM & after 05 PM
Tomorrow
84°F
Mostly Sunny
Water
Water Temp
84°F
Swimming weather
Next High Tide
11:05 PM
1.7 ft · in 2.2h
Sea Nettles
Moderate nettle risk
40% probability · Baltimore Harbor buoy
Water Quality
Clean
10 MPN/100mL · Enterococcus
USGS · sampled 10mo ago
Sun & Moon
Sunrise
5:53 AM
Sunset
8:29 PM
Moon · 18%
Waxing Crescent
Neap tides — smaller range
7-Day Beach Day Forecast
84°
Mostly Sunny
3%
83
84°
Sunny
3%
85
86°
Showers And Thunderstorms
79%
13
85°
Chance Showers And Thunderstorms
62%
21
81°
Slight Chance Rain Showers
17%
77
83°
Sunny
7%
86
What to Bring Today
- critical SPF 50 sunscreen UV index 9 — very high
- recommended Sturdy umbrella + sand anchor 14 mph wind
- optional Swimsuit - water is swimmable Water is 84°F
- recommended Rain cover + dry bag 69% chance of rain
- critical Extra water / electrolytes 88°F - heat risk
- recommended Cooling towel or hat sustained heat
Always remember water bottle, trash bag (leave no trace).
Beach Info
Parking
Large state park lot.
Dogs
Dogs not permitted on swimming beach. Allowed on leash in other park areas.
Entry Fee
$5/person MD resident, $7/person non-resident (Memorial Day–Labor Day weekends & holidays)
Address
7200 Graces Quarters Rd, Middle River, MD 21220
Amenities
Frequently Asked
Is it safe to swim at Hammerman Beach (Gunpowder Falls) today?
Hammerman Beach (Gunpowder Falls) shows a live water-quality reading (bacteria levels) and today's swim-safety score at the top of this page, refreshed on every update. Seasonal lifeguards patrol the swim area in summer — follow their flags. Always review the current advisories, surf, and rip-current notes before getting in the water.
Is Hammerman Beach (Gunpowder Falls) dog-friendly?
Dogs not permitted on swimming beach. Allowed on leash in other park areas.
Is there an entry fee at Hammerman Beach (Gunpowder Falls)?
$5/person MD resident, $7/person non-resident (Memorial Day–Labor Day weekends & holidays)
Are there lifeguards at Hammerman Beach (Gunpowder Falls)?
Yes. Seasonal lifeguards patrol Hammerman Beach (Gunpowder Falls) during the summer swim season (typically Memorial Day through Labor Day). Outside that window, swim at your own risk.
What amenities are at Hammerman Beach (Gunpowder Falls)?
Amenities at Hammerman Beach (Gunpowder Falls) include lifeguards, bathhouse, paddle boat rentals, restrooms, picnic pavilions.
When is the water warmest at Hammerman Beach (Gunpowder Falls)?
The Chesapeake warms quickly — water temperatures peak in late July and August, typically 78-82°F. Swimming comfortable from mid-June through September.
Where is Hammerman Beach (Gunpowder Falls) located?
Hammerman Beach (Gunpowder Falls) is in Baltimore County, MD, at 7200 Graces Quarters Rd, Middle River, MD 21220.
Nearby Beaches
Updated · Data from NOAA, NWS