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.
- MISSOURI RIVER AT BISMARCK, NDUSGS gauge · North Dakota · 17,800 ft³/s65°F124 mi23 hrs ago
- Niobrara River near Sparks, Nebr.USGS gauge · Nebraska · 582 ft³/s72°F155 mi23 hrs ago
- SHEYENNE RIVER BELOW BALDHILL DAM, NDUSGS gauge · North Dakota · 143 ft³/s74°F160 mi1 day ago
- CHEYENNE RIVER AT RED SHIRT, SDUSGS gauge · South Dakota · 44 ft³/s74°F176 mi23 hrs ago
- SHEYENNE RIVER ABOVE HARVEY, NDUSGS gauge · North Dakota67°F178 mi23 hrs ago
- 71°F180 mi1 day ago
- SHEYENNE R AB SHEYENNE R DIVERSION NR HORACE, NDUSGS gauge · North Dakota · 170 ft³/s74°F184 mi23 hrs ago
- SHEYENNE RIVER NEAR COOPERSTOWN, NDUSGS gauge · North Dakota · 232 ft³/s73°F185 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.