Live · updated daily from USGS
Swimmable water near you
1,324 USGS sensors are reporting a live water temperature right now, the newest reading from August 23, 2026 (8 hrs ago).
- Cold · below 60°F · 218
- Cool · 60–69°F · 484
- Comfortable · 70–86°F · 544
- Warm · above 86°F · 78
- 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.
- FOX RIVER NEAR NEW MUNSTER, WIUSGS gauge · Wisconsin · 454 ft³/s73°F140 mi9 hrs ago
- SUGAR RIVER NEAR VERONA, WIUSGS gauge · Wisconsin · 40 ft³/s60°F149 mi9 hrs ago
- BADGER MILL CREEK AT VERONA, WIUSGS gauge · Wisconsin · 5 ft³/s58°F151 mi9 hrs ago
- SWAN CREEK AT LALOR ROAD NEAR FITCHBURG, WIUSGS gauge · Wisconsin · 2 ft³/s58°F153 mi9 hrs ago
- LAKE MONONA AT MADISON, WIUSGS gauge · Wisconsin73°F157 mi9 hrs ago
- SPRING HARBOR STORM SEWER AT MADISON, WIUSGS gauge · Wisconsin · 0 ft³/s69°F158 mi9 hrs ago
- WK-06/19E/31-1301USGS gauge · Wisconsin51°F159 mi9 hrs ago
- PHEASANT BRANCH AT MIDDLETON, WIUSGS gauge · Wisconsin · 8 ft³/s69°F160 mi9 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(29)Upper Peoria Lake
Fishing, boat cruises, camping & other activities offered along a part of the Illinois River.
7.8 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.
