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The Water Around Us
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Live · updated daily from USGS

Swimmable water near you

1,324 USGS sensors are reporting a live water temperature right now, the newest reading from August 23, 2026 (6 hrs ago).

Clear location
  • Cold · below 60°F · 218
  • Cool · 60–69°F · 484
  • Comfortable · 70–86°F · 544
  • Warm · above 86°F · 78
  • 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. SNAKE RIVER AB JACKSON LAKE AT FLAGG RANCH WYUSGS gauge · Wyoming · 255 ft³/s
    64°F28 mi7 hrs ago
  2. Firehole River at Old Faithful, YNPUSGS gauge · Wyoming · 43 ft³/s
    59°F31 mi7 hrs ago
  3. Madison River near West Yellowstone, MTUSGS gauge · Montana · 296 ft³/s
    66°F37 mi7 hrs ago
  4. SNAKE RIVER NEAR MORAN, WYUSGS gauge · Wyoming · 5,000 ft³/s
    64°F38 mi7 hrs ago
  5. Red Rock Cr ab Lakes, nr Lakeview, MTUSGS gauge · Montana · 29 ft³/s
    54°F39 mi7 hrs ago
  6. Firehole River near West Yellowstone MTUSGS gauge · Wyoming · 200 ft³/s
    72°F39 mi7 hrs ago
  7. Gibbon River at Madison Jct, YNPUSGS gauge · Wyoming · 75 ft³/s
    65°F40 mi7 hrs ago
  8. Pacific Creek at Moran, WYUSGS gauge · Wyoming · 48 ft³/s
    58°F41 mi7 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.