LakeLevelIs Helena Valley Reservoir low right now?
Helena Valley Reservoir was at 3,817.88 ft on October 10, 2026. That is 1.07 ft above the typical level for October 10, within the normal range. Over the past week the lake has been falling about 0.09 ft a day.
Helena Valley Reservoir on Oct 10 in past years
20253,818.0−0.1
20243,818.0−0.1
20233,817.6+0.3
20223,816.9+1.0
20213,816.0+1.9
20203,816.8+1.1
Daily levels, last two weeks
| Date | Level (ft) | Change |
|---|---|---|
| Oct 10 | 3,817.88 | −0.03 |
| Oct 9 | 3,817.91 | −0.03 |
| Oct 8 | 3,817.94 | −0.04 |
| Oct 7 | 3,817.98 | −0.04 |
| Oct 6 | 3,818.02 | −0.03 |
| Oct 5 | 3,818.05 | −0.14 |
| Oct 4 | 3,818.19 | −0.33 |
| Oct 3 | 3,818.52 | −0.38 |
| Oct 2 | 3,818.90 | −0.37 |
| Oct 1 | 3,819.27 | −0.06 |
| Sep 30 | 3,819.33 | −0.05 |
| Sep 29 | 3,819.38 | −0.07 |
| Sep 28 | 3,819.45 | −0.08 |
| Sep 27 | 3,819.53 | −0.08 |
About Helena Valley Reservoir
- 10-year range
- 3,810.6 ft (April 15, 2025) to 3,820.2 ft (June 18, 2018)
- Operated by
- U.S. Army Corps of Engineers
- Data
- U.S. Army Corps of Engineers — NWDM district, HVMT
- Datum
- LOCAL
Lakes near Helena Valley Reservoir
- Canyon Ferry LakeMontana · 7 mi 3,784.4 ft −0.4 wkNormal for this time of year
- Willow Creek ReservoirMontana · 68 mi 4,127.9 ft +1.0 wkNormal for this time of year
- Georgetown LakeMontana · 73 mi 6,428.7 ft −0.1 wkNormal for this time of year
- Pishkun ReservoirMontana · 77 mi 4,346.0 ft ±0.0 wkLower than usual for this time of year
- Gibson ReservoirMontana · 78 mi 4,614.6 ft −2.4 wkNormal for this time of year
- Como LakeMontana · 119 mi 4,206.6 ft −0.8 wkHigher than usual for this time of year
Questions
Is Helena Valley Reservoir low right now?
Helena Valley Reservoir was at 3,817.88 ft on October 10, 2026. That is 1.07 ft above the typical level for October 10, within the normal range. Over the past week the lake has been falling about 0.09 ft a day.
How often is the Helena Valley Reservoir level updated?
The operator reports every 15 minutes to an hour. This page refreshes several times a day; the time of the latest reading is shown next to the level.
Where does this data come from?
U.S. Army Corps of Engineers (NWDM district, HVMT). Readings are provisional and can be revised.