Weather WorldSummit, WA Weather Forecast
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Summit Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY |
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| Chance of Rain | Chance of T-Storm | Chance of Rain | Chance of T-Storm | Mostly Cloudy | Chance of Rain | Partly Cloudy | Mostly Sunny | Mostly Clear | Chance of Rain | Partly Cloudy | Mostly Cloudy |
| Lo: 50°FLo: 10°C | Hi: 60°FHi: 16°C | Lo: 50°FLo: 10°C | Hi: 65°FHi: 18°C | Lo: 50°FLo: 10°C | Hi: 73°FHi: 23°C | Lo: 53°FLo: 12°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 73°FHi: 23°C | Lo: 55°FLo: 13°C | Hi: 73°FHi: 23°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 236 PM PDT Wed Sep 02 2026 
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Issued: 254 PM PDT Wed Sep 2 2026
Aviation
...South to southwest flow aloft into Thursday an an upper low digs southwards along the Washington coast. A front continues to move across the area this afternoon with rain spreading across Puget Sound. The bulk of the stratiform rain moves out of W WA by this evening. A few rain showers will then exist along Olympic Peninsula tonight, with a 20% probability for thunderstorms along the southern WA coast. VFR cigs for most areas into tonight with MVFR along the coast and in areas of heav...