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.
- DEEP RIVER NEAR LIVERPOOL, INUSGS gauge · Indiana75°F2.7 mi13 hrs ago
- 71°F8.4 mi13 hrs ago
- GRAND CALUMET RIVER AT COLUMBIA AV AT HAMMOND, INUSGS gauge · Indiana · 33 ft³/s71°F14 mi13 hrs ago
- HART DITCH AT DYER, INUSGS gauge · Indiana · 51 ft³/s73°F15 mi13 hrs ago
- TRAIL CREEK AT MICHIGAN CITY, INUSGS gauge · Indiana · 57 ft³/s67°F22 mi12 hrs ago
- KANKAKEE RIVER AT SHELBY, INUSGS gauge · Indiana · 3,070 ft³/s71°F27 mi12 hrs ago
- KANKAKEE RIVER AT DUNNS BRIDGE, INUSGS gauge · Indiana · 1,890 ft³/s71°F28 mi13 hrs ago
- 77°F29 mi12 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(868)Deep River County Park
An old grist mill is the visitor center of this natural space with gardens, trails & a waterpark.
6.5 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.

