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The linked gauge for Lake Monona reported 845.00 ft at its latest stored observation on Oct 11, 2026, on a rising 30-day trend (+5.08 ft).
Local gage height: 845.00 ft
+5.08 ft net change over past 30 days
Deepest basin sounding across ~3,359 acres
Refreshing (60–70°F) · Cool swim · Moderate comfort
LAKE MONONA AT MADISON, WI · Oct 11, 12:00 PM UTC
| Observation Date | Gage height (ft) | 24h Change | Approval Status |
|---|---|---|---|
| Sun, Oct 11, 2026 | 10.07 | -834.80 ft | Provisional |
| Sun, Oct 11, 2026 | 844.87 | -0.14 ft | Provisional |
| Sun, Oct 11, 2026 | 845.01 | +0.14 ft | Provisional |
| Sat, Oct 10, 2026 | 844.87 | -0.14 ft | Provisional |
| Sat, Oct 10, 2026 | 845.01 | +840.00 ft | Provisional |
Current index calculated from verified local atmospheric, hydrographic & alert inputs.
Fair for swimming (73/100), from 5 available inputs. Supporting this: No active official alerts for this lake. 0% chance of precipitation. Confidence is moderate (77%) because some inputs are unavailable or older than ideal.
| Sat, Oct 10, 2026 | 5.01 | -839.87 ft | Provisional |
| Fri, Oct 9, 2026 | 844.88 | -0.14 ft | Provisional |
| Fri, Oct 9, 2026 | 845.02 | +840.00 ft | Provisional |
| Fri, Oct 9, 2026 | 5.02 | -839.88 ft | Provisional |
| Thu, Oct 8, 2026 | 844.90 | -0.14 ft | Provisional |
| Thu, Oct 8, 2026 | 845.04 | +840.00 ft | Provisional |
| Thu, Oct 8, 2026 | 5.04 | -839.89 ft | Provisional |
| Wed, Oct 7, 2026 | 844.93 | -0.14 ft | Provisional |
| Wed, Oct 7, 2026 | 845.07 | — | Provisional |