Shellberg Lake, WA Weather Forecast
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Shellberg Lake Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY |
| Mostly Clear | Mostly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 47°FLo: 8°C | Hi: 75°FHi: 24°C | Lo: 47°FLo: 8°C | Hi: 70°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 75°FHi: 24°C Lo: 46°FLo: 8°C | Hi: 75°FHi: 24°C Lo: 46°FLo: 8°C | Hi: 70°FHi: 21°C Lo: 51°FLo: 11°C | Hi: 70°FHi: 21°C Lo: 51°FLo: 11°C | Hi: 60°FHi: 16°C Lo: 43°FLo: 6°C | Hi: 60°FHi: 16°C Lo: 43°FLo: 6°C | Hi: 60°FHi: 16°C Lo: 43°FLo: 6°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 209 PM PDT Sun Oct 04 2026 

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Issued: 449 PM PDT Sun Oct 4 2026
Key Messages
- Unseasonably warm and dry conditions continue through Thursday.
- An incoming weather system on Friday will bring cooler temperatures, gusty winds, and chances for rain.
Discussion
... Sunday night through Thursday: The ridge of high pressure over the Inland Northwest temporarily flattens Sunday night into Monday as a weather system drops into the Gulf of Alaska and then tracks toward British Columbia. A weak shortwave rippling through the southern periphery of this system will bring an ...
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