Weather WorldThornton Lake, WA 7-Day Weather Forecast
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Thornton Lake Weather Forecast
Thornton Lake, WA Weather Forecast Date: 236 AM PDT Sat Aug 08 2026
Weather forecast for Thornton Lake, WA
Today Hi: 70°FHi: 21°C Lo: 49°F Lo: 9°C |
Today... Mostly cloudy until late afternoon then becoming mostly sunny. Patchy smoke late in the afternoon. Freezing level near 14500 feet. Afternoon pass temperatures around 70. Light wind becoming west around 10 mph with gusts to 20 mph in the afternoon. |
Sun Hi: 69°FHi: 21°C Lo: 49°F Lo: 9°C |
Sunday... Mostly sunny. Freezing level near 13500 feet. Afternoon pass temperatures in the upper 60s. Light wind becoming west around 10 mph with gusts to 20 mph in the afternoon. |
| Mon Hi: 69°FHi: 21°C Lo: 49°F Lo: 9°C |
Monday... Sunny. Freezing level near 13500 feet. Afternoon pass temperatures in the upper 60s. Light wind becoming west around 10 mph in the afternoon, gusts to 20 mph in the afternoon. |
| Tue Hi: 69°FHi: 21°C Lo: 49°F Lo: 9°C |
Tuesday... Sunny. Freezing level near 13500 feet. Afternoon pass temperatures in the upper 60s. |
| Wed Hi: 69°FHi: 21°C Lo: 50°F Lo: 10°C |
Wednesday... Mostly sunny. Freezing level near 13000 feet. Afternoon pass temperatures in the upper 60s. |
| Thu Hi: 71°FHi: 22°C Lo: 51°F Lo: 11°C |
Thursday... Mostly sunny. Freezing level near 13000 feet. Afternoon pass temperatures in the lower 70s. |
| Fri Hi: 75°FHi: 24°C |
Friday... Mostly sunny. Freezing level near 13500 feet. Afternoon pass temperatures in the mid 70s. |
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