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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 21, 2026 (15 hrs ago).

Clear location
  • Cold · below 60°F · 375
  • Cool · 60–69°F · 594
  • Comfortable · 70–86°F · 938
  • Warm · above 86°F · 228
  • 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.

  1. CHICAGO SANITARY AND SHIP CANAL AT ROMEOVILLE, ILUSGS gauge · Illinois
    84°F12 mi16 hrs ago
  2. CHICAGO S & S CANAL AT WESTERN AVE AT CHICAGO, ILUSGS gauge · Illinois
    77°F12 mi15 hrs ago
  3. DES PLAINES RIVER AT ROUTE 53 AT JOLIET, ILUSGS gauge · Illinois · 4,130 ft³/s
    75°F17 mi15 hrs ago
  4. DES PLAINES RIVER AT ROCKDALE, ILUSGS gauge · Illinois
    77°F19 mi16 hrs ago
  5. GRAND CALUMET RIVER AT COLUMBIA AV AT HAMMOND, INUSGS gauge · Indiana · 33 ft³/s
    71°F20 mi16 hrs ago
  6. HART DITCH AT DYER, INUSGS gauge · Indiana · 51 ft³/s
    73°F23 mi16 hrs ago
  7. LITTLE CALUMET RIVER AT BURR STREET AT GARY, INUSGS gauge · Indiana
    71°F26 mi15 hrs ago
  8. DES PLAINES RIVER AT CHANNAHON, ILUSGS gauge · Illinois
    79°F28 mi16 hrs ago

Nearest swimmable spots

Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.

Whalon Lake4.7(436)

Whalon Lake

Reservoir · Naperville, Illinois
Camping nearbyDog-friendly

Nature park featuring a quarry lake, prairie & wetlands, plus fishing, boating, trails & a dog park.

12 mi from your location

The Naperville Riverwalk4.8(1,222)

The Naperville Riverwalk

Park · Naperville, Illinois
Camping nearby

The "Crown Jewel" of Naperville, this 1.75-mile brick pathway follows the West Branch of the DuPage River past fountains, covered bridges, and outdoor sculpture. Built by community volunteers in 1981 for the city's 150th anniversary, highlights include Paddleboat Quarry, the Dandelion Fountain, a 72-bell Millennium Carillon in Moser Tower, and Centennial Beach — a historic swimming area with sand volleyball. Dogs welcome on leash; bikes and scooters are not permitted on the Riverwalk path.

16 mi from your location

Riverwalk Park4.8(3,871)

Riverwalk Park

Park · Naperville, Illinois
Camping nearby

Classic urban park offering a playground, ice rink, trails, horseshoe pit & a paddle boat pier.

16 mi from your location

Riverwalk4.8(20,843)

Riverwalk

Tourist attraction · Chicago, Illinois
Dog-friendly

Riverside pedestrian path featuring city views & dining, plus bridges, fishing piers & boat docks.

17 mi from your location

River Park4.6(858)

River Park

City park · Chicago, Illinois
Dog-friendly

Park with a water playground, pool & sports facilities plus fishing, wildlife & a canoe launch.

19 mi from your location

Whiting Lakefront Park4.7(1,851)

Whiting Lakefront Park

Park · Whiting, Indiana

This 15-acre park along Lake Michigan's shore in Whiting, Indiana features a 300-foot fishing pier, a picturesque boardwalk with views of Chicago's skyline, and beautifully maintained flower gardens. Adjacent Whihala Beach spans 20+ acres of sandy shoreline, and the WhoaZone inflatable water playground is the largest in the Midwest. The park also offers a fish pond with waterfall, volleyball and tennis courts, a baseball diamond, and concession areas. Open daily at 7 AM with year-round scenic lake views.

19 mi from your location

Lake Park4.7(1,286)

Lake Park

City park · Des Plaines, Illinois
Camping nearby

Charming 76-acre park on the banks of Lake Opeka known for its fishing, boating & golf.

20 mi from your location

Volkening Lake4.6(623)

Volkening Lake

Reservoir · Schaumburg, Illinois

Public recreation area with boat rentals, fishing & picnic spots, along with a concession stand.

25 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.