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 21, 2026 (23 hrs ago).
- Cold · below 60°F · 375
- Cool · 60–69°F · 594
- Comfortable · 70–86°F · 938
- Warm · above 86°F · 228
- 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.
- Clark Fork at Deer Lodge MTUSGS gauge · Montana · 105 ft³/s63°F23 mi1 day ago
- Clark Fork ab Little Blackfoot R nr Garrison MTUSGS gauge · Montana · 116 ft³/s65°F26 mi23 hrs ago
- Lost Creek near Galen, MTUSGS gauge · Montana · 11 ft³/s58°F29 mi1 day ago
- Clark Fork near Galen MTUSGS gauge · Montana · 72 ft³/s59°F29 mi1 day ago
- Silver Bow Creek at Warm Springs MTUSGS gauge · Montana · 15 ft³/s62°F30 mi1 day ago
- Warm Springs Creek at Warm Springs MTUSGS gauge · Montana · 50 ft³/s56°F30 mi23 hrs ago
- Silver Bow Creek at Montana Street, at Butte, MTUSGS gauge · Montana · 6 ft³/s55°F33 mi23 hrs ago
- Blacktail Creek above Grove Gulch, at Butte, MTUSGS gauge · Montana · 3 ft³/s53°F33 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.