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The Water Around Us
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Live · updated daily from USGS

Swimmable water near you

1,325 USGS sensors are reporting a live water temperature right now, the newest reading from August 23, 2026 (1 hr ago).

Clear location
  • Cold · below 60°F · 218
  • Cool · 60–69°F · 484
  • Comfortable · 70–86°F · 545
  • 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. Missouri River at Toston MTUSGS gauge · Montana · 1,860 ft³/s
    71°F18 mi2 hrs ago
  2. Jefferson River near Three Forks MTUSGS gauge · Montana · 384 ft³/s
    69°F29 mi2 hrs ago
  3. Gallatin River at Logan MTUSGS gauge · Montana · 368 ft³/s
    64°F32 mi2 hrs ago
  4. Willow Creek near Harrison MTUSGS gauge · Montana · 6 ft³/s
    59°F40 mi1 hr ago
  5. Blacktail Creek above Grove Gulch, at Butte, MTUSGS gauge · Montana · 4 ft³/s
    54°F44 mi1 hr ago
  6. Jefferson River at Parsons Bdg nr Silver Star, MTUSGS gauge · Montana · 234 ft³/s
    65°F44 mi1 hr ago
  7. Silver Bow Creek at Montana Street, at Butte, MTUSGS gauge · Montana · 7 ft³/s
    57°F44 mi1 hr ago
  8. Smith River bl Eagle Cr nr Fort Logan MTUSGS gauge · Montana · 89 ft³/s
    64°F45 mi1 hr 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.