Live · updated daily from USGS
Swimmable water near you
2,137 USGS sensors are reporting a live water temperature right now, the newest reading from August 21, 2026 (12 hrs ago).
- Cold · below 60°F · 375
- Cool · 60–69°F · 595
- Comfortable · 70–86°F · 938
- Warm · above 86°F · 229
- 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°F42 mi13 hrs ago
- SILVER CREEK AT STATE HIGHWAY 21 NEAR ANGELO, WIUSGS gauge · Wisconsin · 33 ft³/s61°F47 mi13 hrs ago
- LA CROSSE RIVER @ CNTY TRUNK HIGHWY BB NR TOMAH,WIUSGS gauge · Wisconsin · 69 ft³/s60°F50 mi13 hrs ago
- STILLWELL CREEK AT YARD ROAD NEAR TOMAH, WIUSGS gauge · Wisconsin · 5 ft³/s65°F51 mi13 hrs ago
- STILLWELL CREEK AT SIXTEENTH COURT NEAR TOMAH, WIUSGS gauge · Wisconsin · 2 ft³/s64°F51 mi13 hrs ago
- 61°F73 mi13 hrs ago
- BLACK EARTH CK NR TREATMENT PLNT @ CROSS PLAINS,WIUSGS gauge · Wisconsin · 11 ft³/s57°F78 mi13 hrs ago
- Cedar River at Waverly, IAUSGS gauge · Iowa · 926 ft³/s73°F78 mi13 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.