Fresno Reservoir Water Level
Montana · updated daily from the U.S. Bureau of Reclamation
2558.35 ft
Fresno Reservoir is above average for this time of year and falling (-3.34 ft in the last 7 days).
Change since yesterday: -0.37 ft
Reading as of 2026-08-14 · higher than 66% of August readings on record
Where Fresno Reservoir sits historically
Today's level compared with every reading in our 5.5-year record for this lake.
Since yesterday
-0.37 ft
7-day change
-3.34 ft
30-day change
-12.06 ft
1-year change
+2.43 ft
Last 30 days
Last 12 months
Full history (5.5 years)
Fresno Reservoir records and averages
| Current level | 2558.35 ft |
|---|---|
| Record high | 2575.04 ft (2023-05-08) |
| Record low | 2541.5 ft (2025-07-05) |
| Average of all readings | 2558.75 ft |
| Data span | 5.5 years (2,000 readings) |
Frequently asked questions
Is Fresno Reservoir full right now?
As of 2026-08-14, Fresno Reservoir sits at 2558.35 ft, which is above average for this time of year.Over the past 30 days the level has fallen 12.06 ft.
What is the water level at Fresno Reservoir today?
The most recent reading is 2558.35 ft (2026-08-14), sourced from the U.S. Bureau of Reclamation. Readings on this page refresh automatically as the agency publishes new data.
What is the highest Fresno Reservoir has ever been?
The highest level in our records is 2575.04 ft on 2023-05-08. The lowest is 2541.5 ft on 2025-07-05. Our record covers about 5.5 years of readings.
Is Fresno Reservoir low for this time of year?
Compared with every August in our records, the current level is higher than 66% of them — above average for this time of year. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.
Why is Fresno Reservoir low right now?
Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. Fresno Reservoir has fallen 12.06 ft over the past 30 days. For the operational reason on any given week, check the U.S. Bureau of Reclamation directly.
How much has Fresno Reservoir changed over the past year?
The level is +2.43 ft compared with this date last year (2558.35 ft today). The full-history chart above covers 5.5 years, with a record high of 2575.04 ft and a record low of 2541.5 ft.
Nearby lakes in Montana
Source: the U.S. Bureau of Reclamation. Readings are provisional and subject to revision by the publishing agency. All Montana lake levels.