Heat Advisory
2026-08-05T23:00:00-07:00

* WHAT...Afternoon high temperatures of 95 to 100 degrees and morning low temperatures of 60 to 65 degrees expected. * WHERE...Portions of northwest and west central Oregon and southwest Washington. * WHEN...From noon Tuesday to 11 PM PDT Wednesday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Wildfire smoke is beginning to increase west of the Cascades over far northwest Oregon and southwest Washington, which may limit high temperatures by approximately 1-3 degrees. However, temperatures will still be hot enough to bring an increased risk of heat-related illnesses even if temperatures are dampened a few degrees from smoke.

Realtime Data

Oregon

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Heat Advisory
Until 2026-08-03T23:00:00-07:00 • National Weather Service
* WHAT...Afternoon high temperatures of 95 to 100 degrees and morning low temperatures of 60 to 65 degrees expected. * WHERE...Portions of northwest and west central Oregon and southwest Washington. * WHEN...From noon Tuesday to 11 PM PDT Wednesday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Wildfire smoke is beginning to increase west of the Cascades over far northwest Oregon and southwest Washington, which may limit high temperatures by approximately 1-3 degrees. However, temperatures will still be hot enough to bring an increased risk of heat-related illnesses even if temperatures are dampened a few degrees from smoke.

LONG TOM RIVER AT MONROE, OR

Realtime Data • Report • Conditions

56

Discharge (cfs)

4.3

Gauge Height (ft)

USGS 14170000

Streamflow discharge was last observed at 56 cfs, and a gauge height of 4.29 feet. With the % decrease since yesterday, the streamflow average over the past 10 days is 52 .

Weather today, Tomorrow,

The river is primarily fed by rainfall, snowmelt, and groundwater, and is also influenced by several tributaries and dams in the area. Seasonal trends in the river flow are strongly influenced by precipitation patterns and snowmelt, with the highest flows typically occurring in late winter and early spring. Interestingly, the Long Tom River is home to several species of fish, including salmon and steelhead, that make their way upriver from the ocean to spawn. Overall, the Long Tom River at Monroe, OR stream gauge is an essential resource for monitoring the health and vitality of this important waterway.

August 3, 2026

Elevation	281.0 ft
Last Updated
Gage height, ft	4.29 ft
Streamflow, ft³/s	56.0 ft3/s
Temperature, water, °C	22.6 deg C
Percent of Normal	135%
Year Over Year Average	41 cfs
24hr Flow Prediction	cfs
Maximum Recorded	6,230 cfs
Geolocation	44.31, -123.30

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Long Tom River At Monroe, Or Realtime Data

LONG TOM RIVER AT MONROE, OR

Realtime Data • Report • Conditions

56

Discharge (cfs)

4.3

Gauge Height (ft)

August 3, 2026

Seasonal Comparison

Oceanic Nino Index

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Long Tom River At Monroe, Or Realtime Data

LONG TOM RIVER AT MONROE, OR

Realtime Data • Report • Conditions

56

Discharge (cfs)

4.3

Gauge Height (ft)

August 3, 2026

Seasonal Comparison

Oceanic Nino Index

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