Live · updated daily from USGS
Swimmable water near you
2,136 USGS sensors are reporting a live water temperature right now, the newest reading from August 22, 2026 (7 hrs ago).
- Cold · below 60°F · 384
- Cool · 60–69°F · 607
- Comfortable · 70–86°F · 930
- 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.
- EAST FORK WHITEWATER RIVER AT BROOKVILLE, INUSGS gauge · Indiana65°F18 mi1 day ago
- Great Miami River at Hamilton OHUSGS gauge · Ohio · 14,500 ft³/s73°F26 mi7 hrs ago
- OHIO RIVER AT MARKLAND DAM NEAR WARSAW, KYUSGS gauge · Kentucky · 255,000 ft³/s77°F27 mi1 day ago
- LICKING RIVER AT HWY 536 NEAR ALEXANDRIA, KYUSGS gauge · Kentucky · 2,440 ft³/s79°F32 mi1 day ago
- EAST FORK WHITEWATER RIVER AT RICHMOND, INUSGS gauge · Indiana · 320 ft³/s70°F44 mi1 day ago
- 79°F45 mi8 hrs ago
- KENTUCKY RIVER AT LOCK 2 AT LOCKPORT, KYUSGS gauge · Kentucky · 7,080 ft³/s80°F51 mi1 day ago
- Caesar Creek near Wellman OHUSGS gauge · Ohio60°F53 mi8 hrs ago
Nearest swimmable spots
Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.
4.7(360)Brookville Lake
Cycling & hiking trails loop around this lake, popular for camping, fishing & seasonal hunting.
24 mi from your location
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.

