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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 (19 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. Grand River near Sumner, MOUSGS gauge · Missouri · 1,900 ft³/s
    80°F42 mi20 hrs ago
  2. Missouri River at Hermann, MOUSGS gauge · Missouri · 49,000 ft³/s
    83°F82 mi20 hrs ago
  3. Mississippi River at Keokuk, IAUSGS gauge · Iowa
    78°F83 mi20 hrs ago
  4. Des Moines River at Keosauqua, IAUSGS gauge · Iowa · 11,500 ft³/s
    79°F86 mi20 hrs ago
  5. Missouri River at Napoleon, MOUSGS gauge · Missouri · 48,300 ft³/s
    81°F89 mi20 hrs ago
  6. Tavern Creek below St. Elizabeth, MOUSGS gauge · Missouri · 35 ft³/s
    79°F90 mi20 hrs ago
  7. Osage River at Tuscumbia, MOUSGS gauge · Missouri · 1,230 ft³/s
    80°F92 mi20 hrs ago
  8. Des Moines River at Ottumwa, IAUSGS gauge · Iowa · 11,000 ft³/s
    79°F100 mi19 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.