Station Name: COAST FORK WILLAMETTE R BLW COTTAGE GROVE DAM, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 738 feet

Nearest Address:
75800 Reservoir Rd
Cottage Grove, OR 97424
Lane County

GPS Coordinates: 43.72067785, -123.0497994

Nearby Water Temperatures

Heat Advisory issued June 13 at 9:15PM PDT until June 14 at 11:00PM PDT by NWS Portland OR

Effective: Sat June 13, 2026, 9:15 PM
Expires: Sun June 14, 2026, 12:00 PM

* WHAT...Temperatures 83 to 88 degrees F expected. * WHERE...South Washington and North and Central Oregon Coast. * WHEN...From 11 AM to 11 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Easterly winds will bring in warmer air to the coast on Sunday causing temperatures to rise. Moderate HeatRisk expected.

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. Monitor the latest forecasts and warnings for updates. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.

Heat Advisory issued June 13 at 9:15PM PDT until June 16 at 11:00PM PDT by NWS Portland OR

Effective: Sat June 13, 2026, 9:15 PM
Expires: Sun June 14, 2026, 12:00 PM

* WHAT...Temperatures of 92 to 98 degrees F expected. * WHERE...Central and Southern Willamette Valley, Northern and Central Coast Range Valleys and Mountains of Oregon, Foothills of the Northern and Central Oregon Cascades, Central Columbia River Gorge and the Hood River Valley, Willapa Hills and Adjacent River Valleys of Pacific and Wahkiakum Counties, Lower Columbia River and Cowlitz River Valleys, Outer Southeast Portland Metro, West Columbia River Gorge of Oregon above 500 ft, North Clark County Lowlands, and South Washington Cascade Foothills. * WHEN...From 11 AM Sunday to 11 PM PDT Tuesday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Peak heating days will be Sunday and Monday with a slight cool down on Tuesday. Overnight temperatures will remain elevated Sunday night into Monday morning, and Monday night into Tuesday morning. Night time temperatures ranging from 60 to 65 degrees F will lead to limited overnight relief. There is currently a 15-35% chance that night time temperatures remain above 70 degrees F Sunday night into Monday across the westernmost parts of the Central and Southern Willamette Valley which would lead to poor overnight relief.

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. If you do not have air conditioning in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the heat. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. For sheltering information and other human services, dial 2 1 1 during business hours or visit 211info.org in Oregon or wa211.org in Washington.

Heat Advisory issued June 14 at 10:50AM PDT until June 14 at 11:00PM PDT by NWS Portland OR

Effective: Sun June 14, 2026, 10:50 AM
Expires: Sun June 14, 2026, 11:00 PM

* WHAT...Temperatures 83 to 88 degrees F expected. * WHERE...South Washington and North and Central Oregon Coast. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Easterly winds will bring in warmer air to the coast today causing temperatures to rise. Moderate HeatRisk expected.

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. Monitor the latest forecasts and warnings for updates. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.

Heat Advisory issued June 14 at 10:50AM PDT until June 16 at 11:00PM PDT by NWS Portland OR

Effective: Sun June 14, 2026, 10:50 AM
Expires: Mon June 15, 2026, 12:15 AM

* WHAT...Temperatures of 92 to 98 degrees F expected. * WHERE...Central and Southern Willamette Valley, Northern and Central Coast Range Valleys and Mountains of Oregon, Foothills of the Northern and Central Oregon Cascades, Central Columbia River Gorge and the Hood River Valley, Willapa Hills and Adjacent River Valleys of Pacific and Wahkiakum Counties, Lower Columbia River and Cowlitz River Valleys, Outer Southeast Portland Metro, West Columbia River Gorge of Oregon above 500 ft, North Clark County Lowlands, and South Washington Cascade Foothills. * WHEN...Until 11 PM PDT Tuesday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Peak heating days will be today and Monday with a slight cool down on Tuesday. Overnight temperatures will remain elevated Sunday night into Monday morning, and Monday night into Tuesday morning. Night time temperatures ranging from 60 to 65 degrees F will lead to limited overnight relief. There is currently a 15-35% chance that night time temperatures remain above 70 degrees F Sunday night into Monday across the westernmost parts of the Central and Southern Willamette Valley which would lead to poor overnight relief.

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. If you do not have air conditioning in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the heat. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. For sheltering information and other human services, dial 2 1 1 during business hours or visit 211info.org in Oregon or wa211.org in Washington.

Heat Advisory issued June 14 at 3:09AM PDT until June 15 at 11:00PM PDT by NWS Medford OR

Effective: Sun June 14, 2026, 3:09 AM
Expires: Sun June 14, 2026, 5:00 PM

* WHAT...High temperatures of 90 to 104 degrees expected with low temperatures of 55 to 65 degrees. * WHERE...Central Douglas County and Eastern Douglas County Foothills, including Roseburg, Sutherlin, Elkton, Camas Valley, Glendale, Canyonville, Tiller and Toketee Falls. * WHEN...From 11 AM this morning to 11 PM PDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.