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The Water Around Us
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Live · updated daily from USGS

Swimmable water near you

2,137 USGS sensors are reporting a live water temperature right now, the newest reading from August 21, 2026 (12 hrs ago).

Clear location
  • Cold · below 60°F · 375
  • Cool · 60–69°F · 595
  • Comfortable · 70–86°F · 938
  • Warm · above 86°F · 229
  • You

A map of the United States with one coloured dot per USGS sensor reporting a live water temperature. The readings are listed below.

Nearest live readings

The closest USGS sensors currently reporting a water temperature, nearest first.

  1. Connoquenessing Creek near Zelienople, PAUSGS gauge · Pennsylvania · 480 ft³/s
    69°F11 mi12 hrs ago
  2. Beaver River at Wampum, PAUSGS gauge · Pennsylvania · 953 ft³/s
    73°F13 mi13 hrs ago
  3. Shenango River near West New Castle, PAUSGS gauge · Pennsylvania
    74°F14 mi12 hrs ago
  4. Mahoning River at Lowellville OHUSGS gauge · Ohio · 645 ft³/s
    72°F23 mi13 hrs ago
  5. Ohio River at Montgomery Lock & Dam, Lower PoolUSGS gauge · Pennsylvania
    74°F25 mi12 hrs ago
  6. Shenango River at Sharpsville, PAUSGS gauge · Pennsylvania · 260 ft³/s
    76°F29 mi12 hrs ago
  7. Allegheny River at Lock & Dam 5 near Freeport, PAUSGS gauge · Pennsylvania
    75°F30 mi12 hrs ago
  8. Mahoning River above West Ave at Youngstown OHUSGS gauge · Ohio · 426 ft³/s
    73°F31 mi13 hrs ago

Nearest swimmable spots

Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.

No rated, photographed swim spots within 25 miles of this point yet. The nearest sensor readings above still tell you what the water is doing — or search any river, lake or beach by name.
Search a spot →

About this map

Every pin is a live reading from a USGS real-time monitoring station, captured in a daily snapshot. Colours follow the site’s cold-water-safety thresholds and describe the water at that one sensor — usually a river or stream gauge, not a swim beach — so treat them as a guide to what the water is doing nearby, not a verdict on a specific spot. Readings are provisional and can be revised by the USGS. Your location only sorts this page: the coordinates appear in the address bar (rounded to about a mile) and are not saved to an account or our database.

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.