Spearfish Lake, WA Weather Forecast
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Spearfish Lake Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | FRIDAY | SATURDAY | SUNDAY |
| Mostly Clear | Sunny | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 45°FLo: 7°C | Hi: 73°FHi: 23°C | Lo: 50°FLo: 10°C | Hi: 73°FHi: 23°C | Lo: 53°FLo: 12°C | Hi: 73°FHi: 23°C Lo: 59°FLo: 15°C | Hi: 73°FHi: 23°C Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 302 PM PDT Sun Sep 27 2026 

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Issued: 359 PM PDT Sun Sep 27 2026
Key Messages
- Patchy frost/freezing temperatures possible in Central Oregon and Kittitas Valley tonight.
- Warmer high temperatures through the week with zonal/split flow aloft.
- Showers (50-70% chance) developing along the Cascades Tuesday with a shortwave passing through British Colombia.
Discussion
... Radar advertising light returns across as a low pressure system centered around northern California advects moisture across the Blue and Eastern Mountains through this afternoon. The exiting of the lo...
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