Shellberg Lake, WA Weather Forecast
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Shellberg Lake Weather Forecast
| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
| Partly Cloudy | Mostly Sunny | Mostly Cloudy | Mostly Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Sunny | Chance of Showers | Mostly Sunny |
| Lo: 47°FLo: 8°C | Hi: 70°FHi: 21°C | Lo: 47°FLo: 8°C | Hi: 75°FHi: 24°C | Lo: 46°FLo: 8°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: 46°FLo: 8°C | Hi: 70°FHi: 21°C Lo: 46°FLo: 8°C | Hi: 60°FHi: 16°C | Lo: 40°FLo: 4°C | Hi: 56°FHi: 13°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 209 PM PDT Mon Oct 05 2026 

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Issued: 1214 PM PDT Mon Oct 5 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
... Monday night through Thursday: High clouds begin clearing out Monday night as a weak shortwave exits the region. Breezy westerly winds will linger into the late evening through the Cascade gaps with sustained speeds around 10 mph and gusts up to 20 mph. Elsewhere, winds will be light. Heading into Tuesday,...
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