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 (13 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.
- Turkey River at Garber, IAUSGS gauge · Iowa · 881 ft³/s73°F38 mi1 day ago
- MISSISSIPPI RIVER AT DAM 13 NEAR FULTON, ILUSGS gauge · Illinois79°F45 mi1 day ago
- Beaver Slough at 3rd Street at Clinton, IAUSGS gauge · Iowa80°F49 mi1 day ago
- Mississippi River at Clinton, IAUSGS gauge · Iowa · 36,600 ft³/s79°F50 mi1 day ago
- SUGAR RIVER NEAR VERONA, WIUSGS gauge · Wisconsin · 43 ft³/s60°F64 mi13 hrs ago
- 60°F64 mi13 hrs ago
- BADGER MILL CREEK AT VERONA, WIUSGS gauge · Wisconsin · 6 ft³/s59°F65 mi13 hrs ago
- Cedar River at Blairs Ferry Road at Palo, IAUSGS gauge · Iowa · 5,580 ft³/s76°F66 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.