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Weekly swim report · August 21, 2026

Maryland swim report

On August 21, 2026 the warmest USGS water reading in Maryland was 81°F at POTOMAC RIVER NEAR WASH, DC LITTLE FALLS PUMP STA; no water-related NWS hazards are active.

Warmest water

The 5 warmest of 19 sensors reporting a water temperature in Maryland today. Station names open the official monitoring page.

  1. #181°F 27°C8 hrs ago
  2. #280°F 26°C9 hrs ago
  3. #3
    POTOMAC RIVER AT POINT OF ROCKS, MDUSGS gauge · 3,890 ft³/s
    78°F 26°C9 hrs ago
  4. #4
    CHOPTANK RIVER NEAR GREENSBORO, MDUSGS gauge · 46 ft³/s
    76°F 24°C9 hrs ago
  5. #5
    MONOCACY RIVER NEAR DICKERSON, MDUSGS gauge · 471 ft³/s
    75°F 24°C8 hrs ago

Active hazards in Maryland

No water-related NWS hazards are active in Maryland right now. Checked live against the National Weather Service alert feed.

Where to swim in Maryland

The most-reviewed, well-rated water destinations in Maryland — check each one’s live conditions before you go.

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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.