Water Temperature of the Columbia River in Longview, WA
Current Water Temperature
Measurement Time: Monday, July 20, 2026, 8:06 AM PDT
Today's Tides
Low: July 20, 3:54 AM, 0.6 ft
High: July 20, 8:34 AM, 2.9 ft
Low: July 20, 3:36 PM, 0.0 ft
High: July 20, 9:08 PM, 3.7 ft
Temperature Locations
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Local Points of Interest
Cowlitz River; Rainier, OR; Lord Island; Walker IslandStation Name: Longview
Data Source: NOAA Tides and Currents
Elevation Above Sea Level: 20 feet
Sensor Depth: -8 feet
Nearest Address:
Industrial Way
Longview, WA 98632
Cowlitz County
GPS Coordinates: 46.106139, -122.954194
Nearby Water Temperatures
East Fork Dairy Creek, Meacham Corner, OR (29 mi)Columbia River, Astoria, OR (39.6 mi)
Rock Creek, Hillsboro, OR (41.3 mi)
Gales Creek, Forest Grove, OR (41.9 mi)
Tualatin River, Hillsboro, OR (41.9 mi)
Beaverton Creek, Beaverton, OR (42.1 mi)
Willamette River, Portland, OR (42.9 mi)
Tualatin River, Dilley, OR (44.4 mi)
Scoggins Creek, Gaston, OR (45.6 mi)
Scoggins Creek, Gaston, OR (45.8 mi)
Fanno Creek, Beaverton, OR (45.9 mi)
Crystal Springs Creek, Portland, OR (46.2 mi)
Wapato Creek, Gaston, OR (46.7 mi)
Johnson Creek, Milwaukie, OR (47.6 mi)
Johnson Creek, Portland, OR (48.5 mi)
Weather for Longview, Washington
Current Weather

Five Day Weather Forecast

Mon
H: 92°F
L: 59°F

Tue
H: 94°F
L: 57°F

Wed
H: 89°F
L: 55°F

Thu
H: 85°F
L: 48°F

Fri
H: 80°F
L: 45°F
Air Quality
Nitrogen Dioxide: 6.7 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 37 μg/m3
Astronomical
Sun Transit: 1:18 PM
Sunset: 8:55 PM
Daylight: 15 hrs 15 mins
Moon Transit: 6:38 PM
Moonset: 12:27 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%
Best Times for Fishing or Hunting
Major Periods
1:14 AM - 3:44 AM6:08 PM - 8:38 PM
Minor Periods
12:50 AM - 2:20 PM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Heat Advisory issued July 19 at 10:36PM PDT until July 22 at 11:00PM PDT by NWS Portland OR
Effective: Sun July 19, 2026, 10:36 PM
Expires: Mon July 20, 2026, 11:00 AM
* WHAT...Temperatures 95 to 98 expected. * WHERE...Western and Central Columbia River Gorge and the Hood River Valley, Portland Metro Lowlands, Greater Vancouver Metro, Lower Columbia River and Cowlitz River Valleys, and East Central Willamette Valley. * WHEN...From 10 AM Tuesday to 11 PM PDT Wednesday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Smoke from fires outside the region moving into the area could result in cooler daytime high temperatures than currently forecasted.
Drink plenty of fluids, stay in a cool place during the heat of the day, stay out of the sunshine, and check up on relatives and neighbors. For those without air conditioning, use fans to keep air moving. Keeps windows closed during the day and open at night, unless air quality is degraded due to wildfire smoke. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Monitor the latest forecasts and warnings for updates.
Heat Advisory issued July 19 at 10:09PM PDT until July 22 at 11:00PM PDT by NWS Portland OR
Effective: Sun July 19, 2026, 10:09 PM
Expires: Mon July 20, 2026, 10:15 AM
* WHAT...Temperatures 95 to 98 expected. * WHERE...Western and Central Columbia River Gorge and the Hood River Valley, Portland Metro Lowlands, Greater Vancouver Metro, Lower Columbia River and Cowlitz River Valleys, and East Central Willamette Valley. * WHEN...From 10 AM Tuesday to 11 PM PDT Wednesday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Smoke from fires south of the region moving into the area could result in cooler daytime high temperatures than currently forecasted.
Drink plenty of fluids, stay in a cool place during the heat of the day, stay out of the sunshine, and check up on relatives and neighbors. For those without air conditioning, use fans to keep air moving. Keeps windows closed during the day and open at night, unless air quality is degraded due to wildfire smoke. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Monitor the latest forecasts and warnings for updates.
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.48 μg/m3
Sulphur Dioxide: 1.06 μg/m3
Ozone: 74.54 μg/m3
Astronomical
Sun Transit: 1:18 PM
Sunset: 8:55 PM
Daylight: 15 hrs 15 mins
Moon Transit: 6:38 PM
Moonset: 12:27 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%
Best Times for Fishing or Hunting
Major Periods
1:14 AM - 3:44 AM6:08 PM - 8:38 PM
Minor Periods
12:50 AM - 2:20 PM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.07 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 90.75 μg/m3
Astronomical
Sun Transit: 1:18 PM
Sunset: 8:54 PM
Daylight: 15 hrs 13 mins
Moon Transit: 7:22 PM
Moonset: 12:45 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%
Best Times for Fishing or Hunting
Major Periods
1:58 AM - 4:28 AM6:52 PM - 9:22 PM
Minor Periods
2:00 PM - 3:30 PM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.95 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 85.63 μg/m3
Astronomical
Sun Transit: 1:18 PM
Sunset: 8:53 PM
Daylight: 15 hrs 11 mins
Moon Transit: 8:08 PM
Moonset: 12:06 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%
Best Times for Fishing or Hunting
Major Periods
2:43 AM - 5:13 AM7:38 PM - 10:08 PM
Minor Periods
3:08 PM - 4:38 PM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.97 μg/m3
Sulphur Dioxide: 0.87 μg/m3
Ozone: 72.08 μg/m3
Astronomical
Sun Transit: 1:18 PM
Sunset: 8:52 PM
Daylight: 15 hrs 9 mins
Moon Transit: 8:56 PM
Moonset: 12:31 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%
Best Times for Fishing or Hunting
Major Periods
3:30 AM - 6:00 AM8:26 PM - 10:56 PM
Minor Periods
4:16 PM - 5:46 PM12:01 AM - 1:31 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.57 μg/m3
Sulphur Dioxide: 1.02 μg/m3
Ozone: 49.5 μg/m3
Astronomical
Sun Transit: 1:18 PM
Sunset: 8:51 PM
Daylight: 15 hrs 6 mins
Moon Transit: 9:46 PM
Moonset: 1:02 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%
Best Times for Fishing or Hunting
Major Periods
4:18 AM - 6:48 AM9:16 PM - 11:46 PM
Minor Periods
5:19 PM - 6:49 PM12:32 AM - 2:02 AM
Action Rating: 3 out of 5
