Lost Lake, SD 7-Day Weather Forecast
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Lost Lake Weather Forecast


Lost Lake, SD Weather Forecast Date: 922 AM CDT Sun Oct 11 2026
Weather forecast for Lost Lake, SD
| Today Hi: 65°FHi: 18°C Lo: 45°F Lo: 7°C |
Rest of Today... Mostly cloudy. A chance of sprinkles late this morning. Not as warm with highs in the mid 60s. Northeast winds 15 to 20 mph with gusts up to 30 mph. |
| Columbus Day Hi: 60°FHi: 16°C Lo: 41°F Lo: 5°C |
Columbus Day... Mostly cloudy with a 50% chance of showers. Highs around 60. North winds 10 to 15 mph with gusts up to 25 mph. |
| Tue Hi: 55°FHi: 13°C Lo: 39°F Lo: 4°C |
Tuesday... Mostly cloudy. Highs in the mid 50s. Northwest winds 5 to 10 mph with gusts up to 20 mph. |
| Wed Hi: 60°FHi: 16°C Lo: 39°F Lo: 4°C |
Wednesday... Partly sunny. Highs around 60. |
| Thu Hi: 59°FHi: 15°C Lo: 35°F Lo: 2°C |
Thursday... Mostly cloudy with a 50% chance of showers. Highs in the upper 50s. |
| Fri Hi: 51°FHi: 11°C Lo: 31°F Lo: -1°C |
Friday... Partly sunny and breezy. Highs in the lower 50s. |
| Sat Hi: 55°FHi: 13°C Lo: 31°F Lo: -1°C |
Saturday... Mostly clear. Widespread frost through the day. Lows in the lower 30s. Highs in the mid 50s. |
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