Weather World
Lost Lake, SD Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Lost Lake Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
 |  |  |  |  |  | | |  | | | |
| Thunderstorms | Chance of Showers | Mostly Cloudy | Partly Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Partly Sunny | Partly Cloudy | Partly Sunny | Chance of T-Storm | Chance of T-Storm |
| Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 60°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 60°FLo: 16°C | Hi: 79°FHi: 26°C |
| POP: 70% | POP: 20% | POP: 40% | POP: 40% | POP: 20% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 637 PM CDT Wed Aug 12 2026 
Lost Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...