River Levels Streamgages Weather

Total streamflow across the Okanogan River was last observed at 3,883 cfs, and is expected to yield approximately 7,702 acre-ft of water today; about 40% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 9,767 cfs, with recent peaks last observed on 2018-05-12 when daily discharge volume was observed at 69,180 cfs.

Maximum discharge along the river is currently at the Okanogan River At Malott reporting a streamflow rate of 1,990 cfs. However, the streamgauge with the highest stage along the river is the Okanogan River At Oroville with a gauge stage of 6.35 ft. This river is monitored from 3 different streamgauging stations along the Okanogan River, the highest being situated at an altitude of 887 ft, the Okanogan River At Oroville.

The Okanogan River is a 115-mile-long river that flows through Okanogan County in Washington state. The river has a rich history, as it was an important trade route for Native American tribes and later became a center for gold mining. Today, the river is used for irrigation and hydroelectric power generation. The river's hydrology is heavily influenced by snowmelt from the nearby Cascade Mountains. The river is home to several reservoirs and dams, including the Enloe Dam, which generates electricity for the region. The river is also a popular destination for recreational activities such as fishing, camping, and rafting. Additionally, the river is used for agricultural purposes, such as irrigation for fruit orchards and hay farms.

Heat Advisory
Until 2024-07-14T06:00:00-06:00 National Weather Service
* WHAT...High temperatures of 100 to 104 each afternoon. * WHERE...Fort Collins, Longmont, Boulder, Denver and suburbs, and Greeley. * WHEN...The most extreme temperatures will occur between 10 am and 8 pm each day. * IMPACTS...Hot temperatures may cause heat illnesses.

July 13, 2024







Last Updated 2024-07-13
Discharge Volume 7,702 ACRE-FT
Streamflow 3,883.0 cfs
-186.0 cfs (-4.57%)
Percent of Normal 39.76%
Maximum 69,180.0 cfs
Seasonal Avg 9,767 cfs
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Okanogan River At Oroville
USGS 12439500
313 cfs 6.35 ft -1.88
Okanogan River Near Tonasket
USGS 12445000
1580 cfs 5.55 ft -4.82
Okanogan River At Malott
USGS 12447200
1990 cfs 4.04 ft -4.78

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Historical River Levels

The Okanogan River (known as the Okanagan River in Canada) is a tributary of the Columbia River, approximately 115 mi (185 km) long, in southern British Columbia and north central Washington. It drains a scenic plateau region called the Okanagan Country east of the Cascade Range and north and west of the Columbia, and also the Okanagan region of British Columbia. The Canadian portion of the river has been channelized since the mid-1950s.

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16-Day Weather Forecast

Regional Streamflow


Cubic Feet Per Second


Cubic Feet Per Second


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Cubic Feet Per Second