Live · updated daily from USGS
Swimmable water near you
1,013 USGS sensors are reporting a live water temperature right now, the newest reading from August 22, 2026 (23 hrs ago).
- Cold · below 60°F · 149
- Cool · 60–69°F · 325
- Comfortable · 70–86°F · 451
- Warm · above 86°F · 88
- 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.
- Niobrara River at Agate, Nebr.USGS gauge · Nebraska70°F83 mi1 day ago
- ENCAMPMENT RIVER AB HOG PARK CR, NR ENCAMPMENT, WYUSGS gauge · Wyoming · 18 ft³/s55°F103 mi1 day ago
- MUDDY CREEK BELOW YOUNG DRAW, NEAR BAGGS, WYUSGS gauge · Wyoming · 0 ft³/s65°F136 mi1 day ago
- WIND RIVER AB BOYSEN RESERVOIR, NR SHOSHONI, WYUSGS gauge · Wyoming · 251 ft³/s72°F168 mi1 day ago
- CHEYENNE RIVER AT RED SHIRT, SDUSGS gauge · South Dakota · 46 ft³/s74°F168 mi1 day ago
- FIVEMILE CREEK NEAR SHOSHONI, WYUSGS gauge · Wyoming · 272 ft³/s67°F170 mi1 day ago
- MUDDY CREEK NEAR SHOSHONI, WYUSGS gauge · Wyoming · 22 ft³/s69°F175 mi1 day ago
- GREEN RIVER NEAR GREEN RIVER, WYUSGS gauge · Wyoming · 616 ft³/s70°F216 mi1 day 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.