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 22, 2026 (14 hrs ago).
- Cold · below 60°F · 384
- Cool · 60–69°F · 607
- Comfortable · 70–86°F · 929
- 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.
- CHEYENNE RIVER AT RED SHIRT, SDUSGS gauge · South Dakota · 46 ft³/s74°F81 mi15 hrs ago
- Niobrara River near Sparks, Nebr.USGS gauge · Nebraska · 651 ft³/s72°F133 mi15 hrs ago
- MISSOURI RIVER AT BISMARCK, NDUSGS gauge · North Dakota · 17,600 ft³/s64°F164 mi15 hrs ago
- Niobrara River at Agate, Nebr.USGS gauge · Nebraska70°F178 mi15 hrs ago
- Dismal River near Thedford, Nebr.USGS gauge · Nebraska · 253 ft³/s66°F201 mi15 hrs ago
- Powder River near Locate MTUSGS gauge · Montana · 4 ft³/s63°F215 mi1 day ago
- Niobrara River near Verdel, Nebr.USGS gauge · Nebraska · 1,640 ft³/s76°F217 mi15 hrs ago
- 76°F223 mi15 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.