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The linked gauge for Flathead Lake reported 2892.47 ft at its latest stored observation on Oct 9, 2026, on a falling 30-day trend (-0.49 ft).
Lake Wind Advisory issued October 9 at 3:26AM MDT until October 9 at 9:00PM MDT by NWS Missoula MT
Local gage height: 2892.47 ft
-0.49 ft net change over past 30 days
Deepest basin sounding across ~126,080 acres
Brisk (50–60°F) · Cold shock risk · Wetsuit recommended
Nearby river temperature: 59.7°F at Flathead River near Polson MT (18.2 mi away) · Oct 9, 12:45 PM UTC
| Observation Date | Gage height (ft) | 24h Change | Approval Status |
|---|---|---|---|
| Wed, Oct 7, 2026 | 2892.55 | -0.03 ft | Provisional |
| Tue, Oct 6, 2026 | 2892.58 | -0.04 ft | Provisional |
| Mon, Oct 5, 2026 | 2892.62 | -0.04 ft | Provisional |
| Sun, Oct 4, 2026 | 2892.66 | -0.02 ft | Provisional |
| Sat, Oct 3, 2026 | 2892.68 | -0.03 ft | Provisional |
| Fri, Oct 2, 2026 | 2892.71 | -0.04 ft | Provisional |
| Thu, Oct 1, 2026 | 2892.75 | 0.00 ft | Provisional |
| Wed, Sep 30, 2026 | 2892.75 | -0.01 ft | Provisional |
| Tue, Sep 29, 2026 | 2892.76 | -0.08 ft | Provisional |
| Mon, Sep 28, 2026 | 2892.84 | -0.03 ft | Provisional |
| Sun, Sep 27, 2026 | 2892.87 | +0.02 ft | Provisional |
| Sat, Sep 26, 2026 | 2892.85 | -0.08 ft | Provisional |
| Fri, Sep 25, 2026 | 2892.93 | -0.05 ft | Provisional |
| Thu, Sep 24, 2026 | 2892.98 | — | 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.