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The Water Around Us
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Live · updated daily from USGS

Swimmable water near you

2,135 USGS sensors are reporting a live water temperature right now, the newest reading from August 21, 2026 (23 hrs ago).

Clear location
  • Cold · below 60°F · 375
  • Cool · 60–69°F · 594
  • Comfortable · 70–86°F · 938
  • Warm · above 86°F · 228
  • 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. East Poplar River at international boundaryUSGS gauge · Delaware · 2 ft³/s
    68°F63 mi1 day ago
  2. Yellowstone River near Sidney MTUSGS gauge · Montana · 3,080 ft³/s
    73°F67 mi1 day ago
  3. Missouri River near Wolf Point MTUSGS gauge · Montana · 7,130 ft³/s
    65°F76 mi23 hrs ago
  4. Missouri R at E Frazer Pump Plant nr Frazer MTUSGS gauge · Montana
    61°F95 mi23 hrs ago
  5. Yellowstone River Fish Bypass Channel nr Intake MTUSGS gauge · Montana · 570 ft³/s
    73°F98 mi1 day ago
  6. Milk River at Nashua MTUSGS gauge · Montana · 153 ft³/s
    74°F108 mi1 day ago
  7. LAKE DARLING NEAR FOXHOLM, NDUSGS gauge · North Dakota
    69°F118 mi1 day ago
  8. DES LACS RIVER AT FOXHOLM, NDUSGS gauge · North Dakota
    66°F119 mi1 day 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.