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The linked gauge for Foster Reservoir reported 616.13 ft at its latest stored observation on Oct 9, 2026, on a falling 30-day trend (-19.33 ft).
Local gage height: 616.13 ft
-19.33 ft net change over past 30 days
Verified freshwater recreation waterbody
Refreshing (60–70°F) · Cool swim · Moderate comfort
Nearby river temperature: 60.4°F at SOUTH SANTIAM RIVER NEAR FOSTER, OR (1.3 mi away) · Oct 9, 2:00 PM UTC
| Observation Date | Gage height (ft) | 24h Change | Approval Status |
|---|---|---|---|
| Wed, Oct 7, 2026 | 616.76 | -1.13 ft | Provisional |
| Mon, Oct 5, 2026 | 617.89 | -0.39 ft | Provisional |
| Sun, Oct 4, 2026 | 618.28 | -0.41 ft | Provisional |
| Sat, Oct 3, 2026 | 618.69 | -0.42 ft | Provisional |
| Fri, Oct 2, 2026 | 619.11 | -0.47 ft | Provisional |
| Thu, Oct 1, 2026 | 619.58 | -0.99 ft | Provisional |
| Wed, Sep 30, 2026 | 620.57 | -0.80 ft | Provisional |
| Tue, Sep 29, 2026 | 621.37 | -1.65 ft | Provisional |
| Sun, Sep 27, 2026 | 623.02 | -0.70 ft | Provisional |
| Sat, Sep 26, 2026 | 623.72 | -0.72 ft | Provisional |
| Fri, Sep 25, 2026 | 624.44 | -0.71 ft | Provisional |
| Thu, Sep 24, 2026 | 625.15 | -1.32 ft | Provisional |
| Wed, Sep 23, 2026 | 626.47 | -1.34 ft | Provisional |
| Tue, Sep 22, 2026 | 627.81 | — | Provisional |
Direct in-situ sensor data is required to compute numeric suitability.
Water temperature is not available from a verified source for this lake. No swimming score is shown without it.