Weather WorldLake St. Clair, WA Weather Forecast
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Lake St. Clair Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT |
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| Mostly Cloudy | Mostly Clear | Mostly Sunny | Mostly Cloudy | Chance of Rain | Partly Cloudy | Chance of Rain | Partly Cloudy | Sunny | Mostly Clear | Mostly Sunny | Chance of Rain |
| Hi: 70°FHi: 21°C | Lo: 46°FLo: 8°C | Hi: 70°FHi: 21°C | Lo: 50°FLo: 10°C | Hi: 63°FHi: 17°C | Lo: 43°FLo: 6°C | Hi: 60°FHi: 16°C | Lo: 40°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 40°FLo: 4°C | Hi: 63°FHi: 17°C | Lo: 41°FLo: 5°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 236 AM PDT Wed Oct 07 2026 
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Issued: 132 AM PDT Wed Oct 7 2026
Aviation
... Upper level ridging will remain over the region with westerly flow aloft becoming more northwesterly by tonight. Low clouds/fog have already developed across Puget Sound this morning and have brought IFR to LIFR conditions to the majority of the Puget Sound terminals. Elsewhere, conditions remain VFR. Expect fog to continue to expand in coverage through the early morning hours and for predominantly IFR to LIFR conditions to persist through late morning. Fog will then gradually scatte...