Live · updated daily from USGS
Swimmable water near you
2,137 USGS sensors are reporting a live water temperature right now, the newest reading from August 21, 2026 (11 hrs ago).
- Cold · below 60°F · 375
- Cool · 60–69°F · 595
- Comfortable · 70–86°F · 938
- Warm · above 86°F · 229
- 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.
- Tionesta Creek at Tionesta Creek Dam, PAUSGS gauge · Pennsylvania · 160 ft³/s75°F18 mi11 hrs ago
- Tionesta Creek at Lynch, PAUSGS gauge · Pennsylvania · 104 ft³/s64°F19 mi12 hrs ago
- Clarion River at Johnsonburg, PAUSGS gauge · Pennsylvania · 223 ft³/s61°F26 mi11 hrs ago
- West Branch Clarion River at Wilcox, PAUSGS gauge · Pennsylvania · 34 ft³/s61°F28 mi11 hrs ago
- Mahoning Creek at Punxsutawney, PAUSGS gauge · Pennsylvania · 813 ft³/s62°F29 mi11 hrs ago
- Mahoning Creek at Mahoning Creek Dam, PAUSGS gauge · Pennsylvania · 997 ft³/s70°F30 mi11 hrs ago
- EB Clarion River at EB Clarion River Dam, PAUSGS gauge · Pennsylvania · 189 ft³/s62°F32 mi11 hrs ago
- Little Mahoning Creek at McCormick, PAUSGS gauge · Pennsylvania · 1,310 ft³/s63°F35 mi12 hrs ago
Nearest swimmable spots
Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.
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.