Cottage Grove Lake water level: Cottage Grove 
39.7 ft low
Cottage Grove Lake is 39.7 ft below full pool, about normal for early November. The Cottage Grove Dam gauge read 750.32 ft at 6:30 AM PST, November 4, 2026.
How Cottage Grove stands today
In early November Cottage Grove normally sits near 750.33 ft, 39.7 ft under full pool, so most of today's gap is the usual seasonal drawdown.
- 750.32 Feet above sea level6:30 AM PST, November 4, 2026, NGVD29 datum.
- −39.68 Feet from full poolFull pool today is 790.00 ft.
- −0.01 Feet from normal for Nov 4Median of 2015–2025 is 750.33 ft. Today ranks in the 45th percentile.
- +0.66 Feet from a year ago749.66 ft on November 4, 2025.
- −13.98 Feet over 30 days−2.78 ft over the past 7 days.
The past year, day by day
The shaded band is where Cottage Grove usually sits on each date: the middle 80% of years from 2015 to 2025. The blue line is the past 12 months; the sand line is the 12 months before. Hover or use the arrow keys to read any day.
- Past 12 months
- The 12 months before
- Normal range (middle 80% of years)
- Median
- Full pool
Monthly average since 2014
Readings for the last 30 days
| Date | Level (ft) | Normal (ft) |
|---|---|---|
| November 4, 2026 | 750.35 | 750.33 |
| November 3, 2026 | 750.51 | 750.46 |
| November 2, 2026 | 750.76 | 751.22 |
| November 1, 2026 | 751.15 | 751.90 |
| October 31, 2026 | 751.69 | 752.80 |
| October 30, 2026 | 752.22 | 753.73 |
| October 29, 2026 | 752.69 | 754.27 |
| October 28, 2026 | 753.10 | 754.89 |
| October 27, 2026 | 753.43 | 755.52 |
| October 26, 2026 | 753.74 | 756.28 |
| October 25, 2026 | 754.10 | 757.12 |
| October 24, 2026 | 754.60 | 758.06 |
| October 23, 2026 | 755.11 | 759.01 |
| October 22, 2026 | 755.62 | 759.99 |
| October 21, 2026 | 756.11 | 761.00 |
| Date | Level (ft) | Normal (ft) |
|---|---|---|
| October 20, 2026 | 756.60 | 761.84 |
| October 19, 2026 | 757.26 | 762.08 |
| October 18, 2026 | 757.79 | 762.83 |
| October 17, 2026 | 758.25 | 763.62 |
| October 16, 2026 | 758.69 | 764.43 |
| October 15, 2026 | 759.20 | 765.27 |
| October 14, 2026 | 759.74 | 766.08 |
| October 13, 2026 | 760.28 | 766.82 |
| October 12, 2026 | 760.81 | 767.45 |
| October 11, 2026 | 761.33 | 768.08 |
| October 10, 2026 | 761.84 | 768.42 |
| October 9, 2026 | 762.34 | 768.95 |
| October 8, 2026 | 762.83 | 769.68 |
| October 7, 2026 | 763.33 | 770.36 |
| October 6, 2026 | 763.82 | 770.57 |
Is the water above your dock?
Enter the elevation of your dock, ramp end or a mark on your shoreline, in feet above sea level (NGVD29, the datum the Army Corps of Engineers uses for this gauge). You will see how far the water is above or below it today, and how often it dipped below it in each month since 2016.
| Month | Low year (10th %) | Median | High year (90th %) | Days above your mark |
|---|---|---|---|---|
| January | 749.69 | 751.64 | 761.46 | — |
| February | 751.82 | 758.67 | 767.38 | — |
| March | 765.62 | 772.60 | 778.50 | — |
| April | 778.02 | 781.51 | 785.47 | — |
| May | 782.52 | 786.78 | 789.91 | — |
| June | 780.75 | 786.42 | 789.84 | — |
| July | 777.66 | 784.21 | 788.67 | — |
| August | 773.95 | 780.44 | 786.58 | — |
| September | 764.94 | 775.10 | 782.88 | — |
| October | 750.41 | 762.79 | 771.39 | — |
| November | 747.33 | 750.11 | 752.17 | — |
| December | 749.65 | 751.18 | 756.78 | — |
Other Oregon lakes, lowest first
| Lake | Level (ft) | Vs full pool |
|---|---|---|
| Phillips Lake | 3,982.11 | 80.3 ft below |
| Blue River Lake | 1,205.88 | 144.1 ft below |
 Applegate Lake | 1,880.79 | 106.2 ft below |
 Dorena Lake | 769.59 | 62.4 ft below |
| Brownlee Reservoir | 2,060.84 | 13.2 ft below |
 Fern Ridge Lake | 362.05 | 11.5 ft below |
| Fall Creek Lake | 758.52 | 71.5 ft below |
 Green Peter Reservoir | 836.67 | 173.3 ft below |
| Cougar Reservoir | 1,519.07 | 170.9 ft below |
 Lookout Point Lake | 796.88 | 129.1 ft below |
 Hills Creek Lake | 1,446.58 | 94.4 ft below |
 Lost Creek Lake | 1,779.29 | 92.7 ft below |
 Detroit Lake | 1,481.54 | 82.0 ft below |
| Foster Lake | 615.84 | 21.2 ft below |
Cottage Grove questions
What is full pool at Cottage Grove Lake?
Full pool at Cottage Grove Lake is 790.00 ft above sea level today. The agency's own term for it is “top of conservation.”
Is Cottage Grove Lake full right now?
No. It is 39.7 ft below full pool. In early November Cottage Grove normally sits near 750.33 ft, 39.7 ft under full pool, so most of today's gap is the usual seasonal drawdown.
Is Cottage Grove Lake lower than normal for early November?
No, it is close to normal. The median level on Nov 4 across 2015–2025 is 750.33 ft, and today's 750.32 ft is −0.01 ft from it. In 8 of 10 years the level on this date fell between 749.81 and 752.09 ft.
How does Cottage Grove Lake compare with last year?
A year ago, on November 4, 2025, it stood at 749.66 ft. It is 0.66 ft higher now.
What are the highest and lowest levels since 2014?
In the daily record we hold, which starts in 2014, the highest daily level was 791.03 ft on June 13, 2022 and the lowest was 743.53 ft on October 21, 2021.
How often is this page updated?
We pull new readings from the U.S. Army Corps of Engineers several times a day. This page was last rebuilt on Wed, 04 Nov 2026 15:13:17 UTC. Readings are provisional and can be revised by the agency.