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The Water Around Us
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Live · updated daily from USGS

Swimmable water near you

2,141 USGS sensors are reporting a live water temperature right now, the newest reading from August 22, 2026 (51 mins ago).

Clear location
  • Cold · below 60°F · 385
  • Cool · 60–69°F · 607
  • Comfortable · 70–86°F · 934
  • Warm · above 86°F · 215
  • 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. ILLINOIS RIVER AT STARVED ROCK, ILUSGS gauge · Illinois
    77°F29 mi1 day ago
  2. ILLINOIS RIVER AT SENECA, ILUSGS gauge · Illinois
    77°F33 mi1 day ago
  3. ROCK RIVER AT BYRON, ILUSGS gauge · Illinois · 3,810 ft³/s
    75°F33 mi1 day ago
  4. HANSON GRAVEL PIT AT CULVERT NEAR MORRIS, ILUSGS gauge · Illinois
    79°F35 mi1 day ago
  5. KANKAKEE R AT INFLOW OF POWER PLANT NR LORENZO, ILUSGS gauge · Illinois
    75°F39 mi1 day ago
  6. DES PLAINES RIVER AT CHANNAHON, ILUSGS gauge · Illinois
    79°F40 mi1 day ago
  7. CHICAGO SANITARY AND SHIP CANAL AT ROMEOVILLE, ILUSGS gauge · Illinois
    84°F42 mi1 day ago
  8. DES PLAINES RIVER AT ROUTE 53 AT JOLIET, ILUSGS gauge · Illinois · 4,130 ft³/s
    75°F42 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.