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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 22, 2026 (10 hrs ago).

Clear location
  • Cold · below 60°F · 384
  • Cool · 60–69°F · 607
  • Comfortable · 70–86°F · 929
  • 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. Mahoning River bl Berlin Dam nr Berlin Center OHUSGS gauge · Ohio · 360 ft³/s
    74°F2.0 mi10 hrs ago
  2. Mahoning River at Alliance OHUSGS gauge · Ohio
    70°F7.8 mi11 hrs ago
  3. Mahoning River at Pricetown OHUSGS gauge · Ohio · 274 ft³/s
    76°F7.8 mi11 hrs ago
  4. West Branch Mahoning River at Wayland OHUSGS gauge · Ohio · 32 ft³/s
    66°F10 mi10 hrs ago
  5. West Branch Mahoning River near Ravenna OHUSGS gauge · Ohio · 4 ft³/s
    68°F14 mi11 hrs ago
  6. Mahoning River at Leavittsburg OHUSGS gauge · Ohio · 301 ft³/s
    72°F16 mi10 hrs ago
  7. Mahoning River near U.S. Route 422 at Warren OHUSGS gauge · Ohio
    74°F17 mi10 hrs ago
  8. Mahoning River above West Ave at Youngstown OHUSGS gauge · Ohio · 396 ft³/s
    73°F18 mi10 hrs ago

Nearest swimmable spots

Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.

Lake Milton State Park4.6(1,539)

Lake Milton State Park

State park · Lake Milton, Ohio
Camping nearby

Waterside park with fishing, boating & a swimming beach, plus a nature trail & picnic shelters.

5.4 mi from your location

Triangle Lake Bog State Nature Preserve4.6(186)

Triangle Lake Bog State Nature Preserve

Nature preserve · Ravenna, Ohio

61 conserved acres around a glacial kettle-hole bog, with forest, shrubs & a quarter-mile trail.

15 mi from your location

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.