Live readings · updated daily
Water temperature in Idaho
The latest readings from USGS real-time water sensors across Idaho, warmest first. Snapshot updated October 19, 2026.
Warmest sensor reading right now
60°F15°C
USGS gauge HULLS GULCH NR HULLS GULCH TRAILHEAD NR BOISE ID · as of 19 hrs ago
All reporting stations (warmest 50 of 216)
| Station | Water temp | Streamflow | Gage height | Observed |
|---|---|---|---|---|
| HULLS GULCH NR HULLS GULCH TRAILHEAD NR BOISE IDUSGS gauge | 60°F15°C | — | 2.36 ft | 19 hrs ago |
| SNAKE RIVER AT McDUFF RAPIDS AT CHINA GARDEN IDUSGS gauge | 60°F15°C | 12,700 ft³/s | 5.02 ft | 19 hrs ago |
| BOISE RIVER ABV INDIAN CREEK AT CALDWELL, IDUSGS gauge | 57°F14°C | — | — | 19 hrs ago |
| BOISE RIVER AT CALDWELL, IDUSGS gauge | 57°F14°C | 437 ft³/s | 6.18 ft | 19 hrs ago |
| SNAKE RIVER AT KING HILL IDUSGS gauge | 57°F14°C | 7,200 ft³/s | 6.08 ft | 20 hrs ago |
| BOISE RIVER NR PARMA IDUSGS gauge | 56°F13°C | 690 ft³/s | 8.75 ft | 20 hrs ago |
| SNAKE RIVER AT WEISER IDUSGS gauge | 55°F13°C | 9,640 ft³/s | 3.31 ft | 20 hrs ago |
| ROCK CREEK AB HWY 30/93 XING AT TWIN FALLS IDUSGS gauge | 55°F13°C | 97 ft³/s | 6.38 ft | 19 hrs ago |
| SF BOISE RIVER AT NEAL BRIDGE NR ARROWROCK DAM IDUSGS gauge | 52°F11°C | — | — | 19 hrs ago |
| CLEARWATER RIVER AT SPALDING IDUSGS gauge | 52°F11°C | 3,060 ft³/s | 3.21 ft | 20 hrs ago |
| KOOTENAI RIVER AT LEONIA, IDUSGS gauge | 51°F11°C | 4,400 ft³/s | 10.34 ft | 19 hrs ago |
| KOOTENAI RIVER AT BONNERS FERRY IDUSGS gauge | 51°F11°C | — | 45.24 ft | 19 hrs ago |
| SF BOISE RIVER AT ANDERSON RANCH DAM IDUSGS gauge | 51°F10°C | 295 ft³/s | 3.03 ft | 19 hrs ago |
| SALMON RIVER AT WHITE BIRD IDUSGS gauge | 50°F10°C | 3,790 ft³/s | 12.40 ft | 19 hrs ago |
| KOOTENAI RIVER AT PORTHILL IDUSGS gauge | 50°F10°C | 4,630 ft³/s | 43.97 ft | 19 hrs ago |
| CLEARWATER RIVER AT OROFINO IDUSGS gauge | 50°F10°C | 1,190 ft³/s | 2.39 ft | 19 hrs ago |
| CLEARWATER RIVER NR PECK IDUSGS gauge | 50°F10°C | 3,140 ft³/s | 3.70 ft | 19 hrs ago |
| SILVER CREEK AT SPORTSMAN ACCESS NR PICABO IDUSGS gauge | 48°F9°C | 88 ft³/s | 6.64 ft | 20 hrs ago |
| SALMON RIVER NR SHOUP IDUSGS gauge | 48°F9°C | 1,550 ft³/s | 2.34 ft | 19 hrs ago |
| EF OWYHEE RIVER AT CRUTCHER CROSSING, IDUSGS gauge | 47°F8°C | 19 ft³/s | 8.12 ft | 20 hrs ago |
| NF CLEARWATER RIVER NR CANYON RANGER STATION IDUSGS gauge | 44°F7°C | 617 ft³/s | 5.40 ft | 19 hrs ago |
| UPPER CLEAR CREEK NEAR KOOSKIA, IDUSGS gauge | 43°F6°C | — | 28.47 ft | 19 hrs ago |
| Big Timber Creek Abv Mouth at Leadore IDUSGS gauge | 41°F5°C | 6 ft³/s | 7.68 ft | 20 hrs ago |
| FREESTONE CR AT FREESTONE CR TRAILHEAD NR BOISE IDUSGS gauge | 40°F5°C | — | 3.30 ft | 19 hrs ago |
| YANKEE FORK SALMON RIVER NR CLAYTON IDUSGS gauge | 39°F4°C | 56 ft³/s | 6.10 ft | 19 hrs ago |
| ANDERSON RANCH RES AT ANDERSON RANCH DAM IDUSGS gauge | — | — | 4150.54 ft | 19 hrs ago |
| ANTELOPE CREEK NR DARLINGTON, IDUSGS gauge | — | 35 ft³/s | 4.63 ft | 20 hrs ago |
| BEAR RIVER AT BORDER, WYUSGS gauge | — | 55 ft³/s | 0.88 ft | 19 hrs ago |
| BEAR RIVER AT IDAHO-UTAH STATE LINEUSGS gauge | — | 339 ft³/s | 9.13 ft | 19 hrs ago |
| BEAR RIVER AT PESCADERO IDUSGS gauge | — | 36 ft³/s | 1.74 ft | 19 hrs ago |
| BIG CANYON CREEK NR PECK IDUSGS gauge | — | 5 ft³/s | 3.16 ft | 19 hrs ago |
| BIG JACKS CREEK AT PARKER TRAIL NR GRASMERE, IDUSGS gauge | — | 3 ft³/s | 4.34 ft | 19 hrs ago |
| BIG LOST RIVER AT ARCO AT SUNSET ROAD IDUSGS gauge | — | 0 ft³/s | 5.08 ft | 19 hrs ago |
| BIG LOST RIVER AT HOWELL RANCH NR CHILLY IDUSGS gauge | — | 102 ft³/s | 1.00 ft | 20 hrs ago |
| BIG LOST RIVER BELOW MOORE DIV NR MOORE IDUSGS gauge | — | 0 ft³/s | 9.39 ft | 20 hrs ago |
| BIG LOST RIVER BL MACKAY RES NR MACKAY IDUSGS gauge | — | 91 ft³/s | 1.67 ft | 19 hrs ago |
| BIG LOST RIVER NR ARCO IDUSGS gauge | — | 0 ft³/s | 2.00 ft | 20 hrs ago |
| BIG LOST RIVER NR LESLIE IDUSGS gauge | — | 78 ft³/s | 4.27 ft | 20 hrs ago |
| BIG WOOD R AT S BROADFORD BRIDGE NR BELLEVUE, IDUSGS gauge | — | 93 ft³/s | 5.66 ft | 19 hrs ago |
| BIG WOOD RIVER AT HAILEY ID TOTAL FLOWUSGS gauge | — | 142 ft³/s | 1.58 ft | 20 hrs ago |
| BIG WOOD RIVER AT STANTON CROSSING NR BELLEVUE IDUSGS gauge | — | 16 ft³/s | 4.26 ft | 20 hrs ago |
| BIG WOOD RIVER BL MAGIC DAM NR RICHFIELD IDUSGS gauge | — | 2 ft³/s | 1.77 ft | 19 hrs ago |
| BIG WOOD RIVER NR KETCHUM IDUSGS gauge | — | 54 ft³/s | 4.93 ft | 20 hrs ago |
| BLACKFOOT RIVER AB RESERVOIR NR HENRY IDUSGS gauge | — | 28 ft³/s | 1.64 ft | 19 hrs ago |
| BLACKFOOT RIVER AND BYPASS CHANNEL NR BLACKFOOT IDUSGS gauge | — | 160 ft³/s | — | 20 hrs ago |
| BLACKFOOT RIVER BELOW NORTH CANAL AT BLACKFOOT IDUSGS gauge | — | 170 ft³/s | 3.35 ft | 20 hrs ago |
| BLACKFOOT RIVER BYPASS NR BLACKFOOT IDUSGS gauge | — | 53 ft³/s | 5.54 ft | 19 hrs ago |
| BLACKFOOT RIVER NR BLACKFOOT IDUSGS gauge | — | 107 ft³/s | 3.08 ft | 20 hrs ago |
| BLACKFOOT RIVER NR SHELLEY IDUSGS gauge | — | 78 ft³/s | 5.47 ft | 19 hrs ago |
| Boise R near Middleton, IDUSGS gauge | — | 231 ft³/s | 3.68 ft | 20 hrs ago |
Station links open the official monitoring page with charts and history.
About these readings
Readings come from USGS real-time monitoring stations — 25 sensors are currently reporting a water temperature in Idaho. Each figure is a point measurement at one sensor, usually on a river or stream — it doesn’t describe a whole lake or shoreline, and coverage varies across the state. Data is provisional and can be revised by the USGS.
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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.