Weekly swim report · October 20, 2026
Maryland swim report
On October 20, 2026 the warmest USGS water reading in Maryland was 60°F at SUSQUEHANNA RIVER NEAR DARLINGTON, MD; 1 water-related NWS hazard is active.
Warmest water
The 5 warmest of 19 sensors reporting a water temperature in Maryland today. Station names open the official monitoring page.
- #1SUSQUEHANNA RIVER NEAR DARLINGTON, MDUSGS gauge60°F 16°C19 hrs ago
- #2POTOMAC RIVER NEAR WASH, DC LITTLE FALLS PUMP STAUSGS gauge · 6,150 ft³/s60°F 16°C19 hrs ago
- #3SAVAGE RIV BL SAVAGE RIV DAM NEAR BLOOMINGTON, MDUSGS gauge · 74 ft³/s59°F 15°C19 hrs ago
- #4DEEP CREEK LAKE NEAR THAYERVILLE, MDUSGS gauge59°F 15°C20 hrs ago
- #5POTOMAC RIVER AT POINT OF ROCKS, MDUSGS gauge · 4,970 ft³/s59°F 15°C19 hrs ago
Active hazards in Maryland
Alerts cover counties or forecast zones — an alert for an area does not mean every river or beach inside it is affected. Times are local to the issuing office.
- CautionHigh Surf Advisory
A High Surf Advisory is in effect for Maryland Beaches; Accomack; Northampton.
NWS Wakefield VA · until Oct 21, 7:00 PM
Where to swim in Maryland
The most-reviewed, well-rated water destinations in Maryland — check each one’s live conditions before you go.
4.5(3,496)Gunpowder Falls State Park Hammerman Area
Gunpowder River hub for picnics & kayaking, with rentable picnic shelters, fishing & swimming.
4.7(2,489)Seneca Creek State Park
This 6,300 acre park of forest & farmlands offers hunting, fresh water fishing & hiking trails.
4.7(2,458)National Harbor
Development along the Potomac River featuring a large Ferris wheel, restaurants, shopping & events.
4.7(2,190)Rock Creek Regional Park
Parkland with multiple hiking trails & lakeshore wildlife-watching, plus playgrounds & boat rentals.
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Conditions are for general information only and can change quickly. Always judge the water in person and follow posted advisories and local guidance before swimming or paddling.

