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The linked gauge for Lake Hopatcong reported 9.02 ft at its latest stored observation on Oct 11, 2026, on a falling 30-day trend (-0.12 ft).
Local gage height: 9.02 ft
-0.12 ft net change over past 30 days
Deepest basin sounding across ~2,685 acres
Water temperature is not available from a verified source for this lake. LakeRadar does not estimate it from latitude, season, or a different lake.
| Observation Date | Gage height (ft) | 24h Change | Approval Status |
|---|---|---|---|
| Sat, Oct 10, 2026 | 9.00 | -0.01 ft | Provisional |
| Fri, Oct 9, 2026 | 9.01 | -0.01 ft | Provisional |
| Thu, Oct 8, 2026 | 9.02 | -0.01 ft | Provisional |
| Wed, Oct 7, 2026 | 9.03 | -0.03 ft | Provisional |
| Tue, Oct 6, 2026 | 9.06 | -0.01 ft | Provisional |
| Mon, Oct 5, 2026 | 9.07 | -0.02 ft | Provisional |
| Sun, Oct 4, 2026 | 9.09 | -0.01 ft | Provisional |
| Sat, Oct 3, 2026 | 9.10 | -0.01 ft | Provisional |
| Fri, Oct 2, 2026 | 9.11 | -0.01 ft | Provisional |
| Thu, Oct 1, 2026 | 9.12 | -0.01 ft | Provisional |
| Wed, Sep 30, 2026 | 9.13 | 0.00 ft | Provisional |
| Tue, Sep 29, 2026 | 9.13 | +0.02 ft | Provisional |
| Mon, Sep 28, 2026 | 9.11 | +0.05 ft | Provisional |
| Sun, Sep 27, 2026 | 9.06 | — | Provisional |
Estimated from recent weather conditions. Deeper water may be considerably cooler, especially in stratified lakes.
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.