Boise River at Caldwell water level

Name: Boise River at Caldwell water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Boise River, Idaho, United States

Directions

Normal for mid-October

Water level

6.40ft Up 0.21 ft over the last 24 hours

Measured Oct 19, 2026, 11:45 AM PDT (1 hour ago)

Flow: 513 cfs
Water temperature: 56 °F

History

7 days

Water level

What this means

Water levels are unremarkable at Boise River at Caldwell, where the gauge shows 6.40 ft.

It is on the way up, by 0.21 ft over the past 24 hours. The 30-day range is 6.13 ft – 6.75 ft.

Fall is often low-water season on rivers, until steadier rain returns. The water temperature at the gauge is 56 °F.

Compared with 5 years of daily readings for this time of year. How to read levels

Key numbers

Highest on record: 14.82 ftMarch 31, 2017

Paddling and fishing conditions

Most paddlers and anglers will find the river in good shape at this stage.

Highest crests on record

Rank	Level	Date
1	14.82 ft	March 31, 2017
2	12.88 ft	May 9, 2023
3	12.76 ft	May 3, 2019
4	12.74 ft	May 28, 2018
5	12.42 ft	April 13, 2016
6	10.96 ft	April 5, 2024
7	9.97 ft	June 15, 2022
8	8.78 ft	May 26, 2021
9	8.13 ft	May 20, 2020

Weather at the gauge

No rain in the last 3 days.

17 Sat 75° 44° – Wind 10 mph

18 Sun 71° 40° – Wind 6 mph

19 Mon 79° 41° – Wind 17 mph

20 Tue 74° 49° – Wind 7 mph

21 Wed 73° 53° 0.11 in, 28% Wind 12 mph

22 Thu 68° 50° 0.06 in, 34% Wind 9 mph

23 Fri 67° 50° 0.02 in, 35% Wind 16 mph

Forecast: Open-Meteo

Sunrise 07:07 AM Sunset 05:58 PM Daylight 10 hr, 52 min First quarter 62%

Map

Other gauges on the Boise River

Gauge	Level	Compared with normal	24 hours	Distance
Boise River near Twin SpringsRiver gauge, Boise River	304 cfs	Low	±0	49 mi
Boise River at Glenwood Bridge near BoiseRiver gauge, Boise River	218 cfs	Normal	−11.0 cfs	21 mi
Boise River near ParmaRiver gauge, Boise River	703 cfs	Low	+7.0 cfs	15 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
West Hartley Gulch near CaldwellRiver gauge, West Hartley Gulch	9.7 cfs	Normal	−0.5 cfs	1.7 mi
Mason Creek at CaldwellRiver gauge, Mason Creek	56.5 cfs	Normal	±0	1.9 mi
East Hartley above Backwater near CaldwellRiver gauge, East Hartley	21.9 cfs	Normal	−1.6 cfs	2.1 mi
South Middleton Drain at MiddletonRiver gauge, South Middleton Drain	39.2 cfs	Normal	−1.1 cfs	4.5 mi
North Middleton Drain Mill Slough at MiddletonRiver gauge, North Middleton Drain Mill Slough	25.3 cfs	Normal	−0.5 cfs	4.6 mi
Conway Gulch below 1st St at NotusRiver gauge, Conway Gulch	17.8 cfs	Normal	−0.1 cfs	6.0 mi
Lake Lowell and Deer Flat DamsLake	2,525.64 ft	High		7 mi
Dixie Drain near WilderRiver gauge, Dixie Drain	153 cfs	Normal	−2.0 cfs	10 mi

Questions and answers

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Boise River at Caldwell today?

On Oct 19, 2026, 11:45 AM PDT, the water level was 6.40 ft. Up 0.21 ft over the last 24 hours.

Is Boise River at Caldwell rising or falling?

Up 0.21 ft over the last 24 hours.

Is the level of Boise River at Caldwell normal?

Normal for mid-October. Compared with 5 years of daily readings for this time of year.

What is the highest water level ever recorded at Boise River at Caldwell?

The highest level on record is 14.82 ft on March 31, 2017.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:13211205 (Agency page)
Coordinates: 43.67735, -116.70113 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	6.40 ft	2026-10-19 18:45	Provisional
Flow	513 cfs	2026-10-19 18:45	Provisional
Water temperature	56 °F	2026-10-19 18:45	Provisional

Download

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How to cite

U.S. Geological Survey: Boise River at Caldwell (usgs:13211205). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/idaho/boise-river-at-caldwell

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer