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 (1 day 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.
- Storm Lake at Storm Lake, IAUSGS gauge · Iowa76°F71 mi1 day ago
- Des Moines River near Pella, IAUSGS gauge · Iowa · 7,320 ft³/s77°F74 mi1 day ago
- West Nishnabotna River at Randolph, IAUSGS gauge · Iowa · 504 ft³/s75°F97 mi1 day ago
- Cedar River at Waverly, IAUSGS gauge · Iowa · 926 ft³/s73°F109 mi1 day ago
- Des Moines River at Ottumwa, IAUSGS gauge · Iowa · 11,000 ft³/s79°F112 mi1 day ago
- Elkhorn River at Waterloo, Nebr.USGS gauge · Nebraska · 1,120 ft³/s78°F112 mi1 day ago
- Platte River at Louisville, Nebr.USGS gauge · Nebraska · 11,300 ft³/s79°F115 mi1 day ago
- Cedar River at Vinton, IAUSGS gauge · Iowa · 4,860 ft³/s72°F116 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.