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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 (9 hrs ago).

Clear location
  • 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.

  1. GRAND CALUMET RIVER AT COLUMBIA AV AT HAMMOND, INUSGS gauge · Indiana · 33 ft³/s
    71°F3.6 mi10 hrs ago
  2. LITTLE CALUMET RIVER AT BURR STREET AT GARY, INUSGS gauge · Indiana
    71°F9.1 mi9 hrs ago
  3. HART DITCH AT DYER, INUSGS gauge · Indiana · 51 ft³/s
    73°F11 mi10 hrs ago
  4. DEEP RIVER NEAR LIVERPOOL, INUSGS gauge · Indiana
    75°F13 mi9 hrs ago
  5. CHICAGO S & S CANAL AT WESTERN AVE AT CHICAGO, ILUSGS gauge · Illinois
    77°F15 mi9 hrs ago
  6. CHICAGO SANITARY AND SHIP CANAL AT ROMEOVILLE, ILUSGS gauge · Illinois
    84°F29 mi10 hrs ago
  7. DES PLAINES RIVER AT ROUTE 53 AT JOLIET, ILUSGS gauge · Illinois · 4,130 ft³/s
    75°F32 mi9 hrs ago
  8. DES PLAINES RIVER AT ROCKDALE, ILUSGS gauge · Illinois
    77°F33 mi10 hrs ago

Nearest swimmable spots

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

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.

1.1 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.

16 mi from your location

Deep River County Park4.7(868)

Deep River County Park

Park · Hobart, Indiana

An old grist mill is the visitor center of this natural space with gardens, trails & a waterpark.

20 mi from your location

Deep River Waterpark4.3(3,164)

Deep River Waterpark

Tourist attraction · Crown Point, Indiana

Amusement park features numerous waterslides & pools, diverse eateries & ice-skating in winter.

20 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.

23 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.