Weiser River at Weiser, ID
River level and flood forecast · Washington County
The river is 5.6 ft below flood stage (9.5 ft).
Forecast to hold near 3.9 ft through Mon, Oct 19, 6 PM.
Flow: 115 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 1:07 PM. Forecasts change as rain falls and as upstream water arrives.
Get flood alerts for this river
An email when the National Weather Service forecasts Weiser River at Weiser to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 13 ft |
| Moderate flood stage | 12 ft |
| Flood stage | 9.5 ft |
| Action stage | 9 ft |
| Record crest (January 2, 1997) | 17.2 ft |
What floods at each level
From the National Weather Service, highest first.
- 13 ftMajor flooding will occur in Weiser and Midvale. Highway 95 will be inundated in several sections especially in the stretch just south of Weiser. Flooding of houses and other buildings near Weiser is likely with water several feet deep spreading north of the river towards Commercial Street. Water may begin flowing over the bridge on Cove Road. Flooding of Old Highway Road in Midvale is likely.
- 12.5 ftWater will begin flowing over Highway 95 just south of Weiser with a depth around a half foot. Flooding will spread north of the river in Weiser towards Commercial Street. Water will be about 3 feet deep between the river and Couper Road with flooding of houses and buildings likely south of the river. Flooding of county roads near Midvale will continue.
- 12 ftSignificant flooding can be expected in Weiser and Midvale with flood waters beginning to cross Highway 95 south of Weiser. Extensive flooding south and east of Weiser will occur with water covering Cove Road and Couper Road to a depth of 2.5 feet. Flooding will also spread north of the river towards Washington Street in Weiser. The river will overflow its banks near Midvale with water beginning to cover county roads near the river.
- 11 ftFlood water will begin spilling over the levees near the Cove Road bridge flooding portions of Cove Road and Couper Road near Weiser. County roads near the river upstream from Weiser will begin to flood.
- 10.3 ftFloodwaters will approach the Cove Road bridge over the Weiser River making it unsafe to cross.
- 9.5 ftMinor flooding of fields and agricultural land near Weiser is possible. Water will begin backing up under the Cove Road bridge into the slough and adjacent farmland.
Highest crests on record
- 17.2 ft — January 2, 1997
- 16 ft — February 14, 1979
- 12.9 ft — April 9, 2019
- 12.46 ft — December 23, 1955
- 12.15 ft — March 16, 2011
Recent crests: 9.54 ft (March 4, 2025) · 8.23 ft (April 5, 2024) · 9.64 ft (March 15, 2023) · 6.84 ft (June 6, 2022) · 9.31 ft (March 20, 2021)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (WSRI1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.