Lakeside, WA Weather Forecast
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Lakeside Weather Forecast
| REST OF TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
| Mostly Clear | Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Chance of Showers | Chance of Showers | Partly Cloudy | Partly Cloudy |
| Lo: 55°FLo: 13°C | Hi: 80°FHi: 27°C | Lo: 50°FLo: 10°C | Hi: 75°FHi: 24°C | Lo: 46°FLo: 8°C | Hi: 66°FHi: 19°C Lo: 46°FLo: 8°C | Hi: 66°FHi: 19°C Lo: 46°FLo: 8°C | Hi: 66°FHi: 19°C | Lo: 50°FLo: 10°C | Hi: 63°FHi: 17°C | Hi: 60°FHi: 16°C Lo: 43°FLo: 6°C | Hi: 60°FHi: 16°C Lo: 43°FLo: 6°C |
| POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1134 PM PDT Sun Sep 20 2026 

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Issued: 132 AM PDT Mon Sep 21 2026
Key Messages
- Warm temperatures through Tuesday with afternoon highs in the high 70s to mid 80s.
- Temperatures begin cooling midweek, with an increasing risk for showers and high elevation snow Friday into Saturday.
- Breezy Tuesday into Wednesday. Potential for stronger winds Friday with a cold front passage.
Discussion
... Monday-Tuesday: The upper-level ridge will begin to slowly flatten today and Tuesday as a broad upper-level crosses over 130W and shortwaves begin ejecting into British Columbia. B...
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