Weather WorldHarney Peak, SD Weather Forecast
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Harney Peak Weather Forecast
| OVERNIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY |
 |  |  | | | | | |  |  | |  |
| Clear | Mostly Sunny | Partly Cloudy | Sunny | Mostly Clear | Sunny | Clear | Sunny | Chance of Rain | Chance of Rain | Chance of Rain | Chance of Rain |
| Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C | Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C | Lo: 50°FLo: 10°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 45°FLo: 7°C | Hi: 59°FHi: 15°C | Lo: 39°FLo: 4°C | Hi: 49°FHi: 9°C |
| POP: 20% | POP: 20% | POP: 60% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1118 PM MDT Tue Oct 06 2026 
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Issued: 1053 PM MDT Tue Oct 6 2026
Key Messages
- 10-15F above normal highs Wednesday/Thursday increasing to 15-20F above normal for Friday/Saturday
- Elevated fire weather conditions Thursday, near critical fire weather conditions Friday
- Pattern change early next week will bring much cooler weather with some chances for precip
Discussion
...(This Evening Through Tuesday) Issued at 102 PM MDT Tue Oct 6 2026
Latest satellite imagery shows clear skies over the area. Conditions like this will continue for the next several days.
Temperatures ...