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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 (9 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. ALLEGHENY RIVER AT RED HOUSE NYUSGS gauge · New York
    67°F11 mi10 hrs ago
  2. CATTARAUGUS CREEK AT GOWANDA NYUSGS gauge · New York · 157 ft³/s
    65°F14 mi9 hrs ago
  3. Allegheny River at Kinzua Dam, PAUSGS gauge · Pennsylvania · 1,480 ft³/s
    71°F31 mi9 hrs ago
  4. Allegheny River below Kinzua Dam at Big Bend, PAUSGS gauge · Pennsylvania
    70°F31 mi9 hrs ago
  5. Allegheny River at Port Allegany, PAUSGS gauge · Pennsylvania · 147 ft³/s
    63°F42 mi9 hrs ago
  6. Sevenmile Run near Rasselas, PAUSGS gauge · Pennsylvania · 3 ft³/s
    58°F46 mi10 hrs ago
  7. Tionesta Creek at Lynch, PAUSGS gauge · Pennsylvania · 104 ft³/s
    64°F48 mi10 hrs ago
  8. West Branch Clarion River at Wilcox, PAUSGS gauge · Pennsylvania · 34 ft³/s
    61°F49 mi9 hrs ago

Nearest swimmable spots

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

Allegheny Reservoir4.8(105)

Allegheny Reservoir

Lake · Pennsylvania
Camping nearby

Paddling, boating & angling around a lakeshore bordered by a forest laced with hiking trails.

21 mi from your location

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.