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

Freeze Warning issued April 16 at 10:45AM PDT until April 17 at 9:00AM PDT by NWS Portland OR

Effective: Thu April 16, 2026, 10:45 AM
Expires: Fri April 17, 2026, 1:00 AM

* WHAT...Sub-freezing temperatures as low as 25 degrees expected. * WHERE...Upper Hood River Valley, Cascade Foothills of Marion and Linn Counties, and Lane County Cascade Foothills. * WHEN...From 1 AM to 9 AM PDT Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

To prevent water pipes from freezing; wrap or drain or allow them to drip slowly. Take steps now to protect tender outdoor plants from the cold. Consider temporarily moving outdoor potted plants indoors if they are sensitive to cold temperatures.

Frost Advisory issued April 16 at 10:45AM PDT until April 17 at 9:00AM PDT by NWS Portland OR

Effective: Thu April 16, 2026, 10:45 AM
Expires: Fri April 17, 2026, 1:00 AM

* WHAT...Temperatures of 32 to 36 degrees will result in frost formation. * WHERE...Northern and Central Coast Range Valleys and Mountains of Oregon, Eastern Portland/Vancouver Metro, Lower Columbia River and Cowlitz River Valleys, Central Willamette Valley, Tillamook County Coast, Central Coast of Oregon, Tualatin Valley, Portland West Hills and Chehalem Mountain, Willapa Hills, North Clark County Lowlands, and South Washington Cascade Foothills. * WHEN...From 1 AM to 9 AM PDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation.

Take steps now to protect tender outdoor plants from the cold. Consider temporarily moving outdoor potted plants indoors if they are sensitive to cold temperatures or temporarily covering sensitive plants with a lightweight cotton fabric (i.e., bedsheets, thin blankets), as this will help retain heat and provide frost protection for your plants.

Freeze Warning issued April 16 at 10:45AM PDT until April 17 at 9:00AM PDT by NWS Portland OR

Effective: Thu April 16, 2026, 10:45 AM
Expires: Fri April 17, 2026, 1:00 AM

* WHAT...Sub-freezing temperatures as low as 28 degrees expected. * WHERE...South Willamette Valley, West Columbia River Gorge of Oregon above 500 ft, and Clackamas County Cascade Foothills. * WHEN...From 1 AM to 9 AM PDT Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

To prevent water pipes from freezing; wrap or drain or allow them to drip slowly. Take steps now to protect tender outdoor plants from the cold. Consider temporarily moving outdoor potted plants indoors if they are sensitive to cold temperatures.

Frost Advisory issued April 16 at 8:28PM PDT until April 17 at 9:00AM PDT by NWS Portland OR

Effective: Thu April 16, 2026, 8:28 PM
Expires: Fri April 17, 2026, 9:00 AM

* WHAT...Temperatures of 32 to 36 degrees will result in frost formation. * WHERE...Northern and Central Coast Range Valleys and Mountains of Oregon, Eastern Portland/Vancouver Metro, Lower Columbia River and Cowlitz River Valleys, Central Willamette Valley, Tillamook County Coast, Central Coast of Oregon, Tualatin Valley, Portland West Hills and Chehalem Mountain, Willapa Hills, North Clark County Lowlands, and South Washington Cascade Foothills. * WHEN...From 1 AM to 9 AM PDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender outdoor plants from the cold. Consider temporarily moving outdoor potted plants indoors if they are sensitive to cold temperatures. Consider temporarily covering sensitive plants with a lightweight cotton fabric (i.e., bedsheets, thin blankets), as this will help retain heat and provide frost protection for your plants.

Freeze Warning issued April 16 at 8:28PM PDT until April 17 at 9:00AM PDT by NWS Portland OR

Effective: Thu April 16, 2026, 8:28 PM
Expires: Fri April 17, 2026, 9:00 AM

* WHAT...Sub-freezing temperatures as low as 25 to 28 degrees expected. * WHERE...South Willamette Valley, Foothills of the Northern and Central Oregon Cascades, West Columbia River Gorge of Oregon above 500 ft, and Upper Hood River Valley. * WHEN...From 1 AM to 9 AM PDT Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

To prevent water pipes from freezing; wrap or drain or allow them to drip slowly. Take steps now to protect tender outdoor plants from the cold. Consider temporarily moving outdoor potted plants indoors if they are sensitive to cold temperatures.