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.
- 77°F17 mi12 hrs ago
- FOX RIVER NEAR MCHENRY, ILUSGS gauge · Illinois76°F27 mi13 hrs ago
- 84°F28 mi13 hrs ago
- GRAND CALUMET RIVER AT COLUMBIA AV AT HAMMOND, INUSGS gauge · Indiana · 33 ft³/s71°F35 mi13 hrs ago
- DES PLAINES RIVER AT ROUTE 53 AT JOLIET, ILUSGS gauge · Illinois · 4,130 ft³/s75°F35 mi12 hrs ago
- DES PLAINES RIVER AT ROCKDALE, ILUSGS gauge · Illinois77°F37 mi13 hrs ago
- HART DITCH AT DYER, INUSGS gauge · Indiana · 51 ft³/s73°F41 mi13 hrs ago
- 71°F41 mi13 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(1,286)Lake Park
Charming 76-acre park on the banks of Lake Opeka known for its fishing, boating & golf.
0.5 mi from your location
4.6(623)Volkening Lake
Public recreation area with boat rentals, fishing & picnic spots, along with a concession stand.
10 mi from your location
4.6(858)River Park
Park with a water playground, pool & sports facilities plus fishing, wildlife & a canoe launch.
11 mi from your location
4.8(20,843)Riverwalk
Riverside pedestrian path featuring city views & dining, plus bridges, fishing piers & boat docks.
17 mi from your location
4.6(653)Fox River Shores Forest Preserve
Lush riverside nature preserve featuring a boat launch, bike trail & a picnic shelter.
21 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.