Weather WorldPhantom Lake, SD Weather Forecast
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Phantom Lake Weather Forecast
| EARLY THIS MORNING | TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
 |  |  | | | | | | |  |  | |
| Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Sunny | Clear | Mostly Sunny |
| Hi: 61°FHi: 16°C | Hi: 81°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 80°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 85°FHi: 29°C | Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C |
| POP: 40% | POP: 40% | POP: 50% | POP: 50% | POP: 50% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 322 AM MDT Sun Aug 16 2026 
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Phantom Lake Forecast Discussion
Issued: 1133 PM MDT Sat Aug 15 2026
Key Messages
- Active pattern persists into early next week with daily chances of showers and thunderstorms, a few of which may be strong to severe Sunday and Monday.
- Trending drier and warmer to end next week.
Discussion
...(This Evening Through Saturday) Issued at 106 PM MDT Sat Aug 15 2026
Water vapor imagery shows shortwave trough pushing through eastern and central Wyoming this afternoon. Northwesterly low level flow persists behind a surface cold front that stretche...