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Live · updated daily from USGS

Swimmable water near you

2,139 USGS sensors are reporting a live water temperature right now, the newest reading from August 22, 2026 (4 hrs ago).

Clear location
  • Cold · below 60°F · 384
  • Cool · 60–69°F · 607
  • Comfortable · 70–86°F · 933
  • 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. Monongahela R at L&D2 Lower Pool at Braddock, PAUSGS gauge · Pennsylvania
    73°F16 mi5 hrs ago
  2. Youghiogheny River at Sutersville, PAUSGS gauge · Pennsylvania · 5,010 ft³/s
    68°F16 mi5 hrs ago
  3. Monongahela River at Braddock, PAUSGS gauge · Pennsylvania
    73°F16 mi5 hrs ago
  4. South Fork Tenmile Creek at Jefferson, PAUSGS gauge · Pennsylvania · 168 ft³/s
    70°F23 mi6 hrs ago
  5. Allegheny R at CW Bill Young L&D at Acmetonia, PAUSGS gauge · Pennsylvania
    75°F25 mi5 hrs ago
  6. Ohio River at Montgomery Lock & Dam, Lower PoolUSGS gauge · Pennsylvania
    74°F31 mi5 hrs ago
  7. Monongahela River near Masontown, PAUSGS gauge · Pennsylvania · 16,200 ft³/s
    72°F32 mi5 hrs ago
  8. Dunkard Creek at Shannopin, PAUSGS gauge · Pennsylvania · 206 ft³/s
    72°F35 mi5 hrs ago

Nearest swimmable spots

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

Peters Lake Park4.7(585)

Peters Lake Park

Park · Canonsburg, Pennsylvania

Tranquil waterside park featuring a woodchip walking trail, fishing & launches for canoes & kayaks.

0.1 mi from your location

Allenport Marina4.3(51)

Allenport Marina

Marina · Allenport, Pennsylvania

A full-service marina on the Monongahela featuring a full menu, and outdoor tiki bar, slips for rent, and fuel on the river. We feature Live entertainment every weekend during the boating season.

18 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.