Weather WorldJohnson Lake, SD Weather Forecast
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Johnson Lake Weather Forecast
| TODAY | TONIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 |  |  | | |  | |  | | |  | |
| Mostly Sunny | Mostly Cloudy | Chance of Showers | Mostly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny | Chance of Showers | Chance of Showers | Mostly Cloudy | Partly Sunny | Partly Cloudy |
| Hi: 81°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 61°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 59°FHi: 15°C | Lo: 39°FLo: 4°C | Hi: 51°FHi: 11°C | Lo: 31°FLo: -1°C |
| POP: 20% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 529 AM CDT Sun Oct 11 2026 
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Issued: 641 AM CDT Sun Oct 11 2026
Key Messages
- A cold front remains on track to move through the area today and Monday, bringing cooler, near seasonable, temperatures into next week.
- Mainly dry conditions are expected on Monday and Tuesday before chances for rain increase by the middle of the week. While a 30-60% chance for rain is in the forecast, details regarding this chance for rain can still change.
Discussion
... Issued at 247 PM CDT Sat Oct 10 2026
Elevated fire danger continues this afternoon with southwesterly winds gusting...