Weather WorldJohn Sam Lake, WA 7-Day Weather Forecast
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John Sam Lake Weather Forecast
John Sam Lake, WA Weather Forecast Date: 236 AM PDT Sun Aug 09 2026
Weather forecast for John Sam Lake, WA
Today Hi: 70°FHi: 21°C Lo: 53°F Lo: 12°C |
Today... Mostly sunny. Highs in the upper 60s to mid 70s. Light wind becoming west to 10 mph in the afternoon. |
Mon Hi: 75°FHi: 24°C Lo: 53°F Lo: 12°C |
Monday... Mostly sunny. Patchy fog in the morning. Highs in the 70s. Light wind. |
| Tue Hi: 75°FHi: 24°C Lo: 55°F Lo: 13°C |
Tuesday... Sunny. Highs in the 70s. Light wind becoming west to 10 mph in the afternoon. |
Wed Hi: 77°FHi: 25°C Lo: 55°F Lo: 13°C |
Wednesday... Partly sunny. Highs in the mid to upper 70s. |
| Thu Hi: 80°FHi: 27°C Lo: 57°F Lo: 14°C |
Thursday... Mostly sunny. Highs near 80. |
| Fri Hi: 83°FHi: 28°C Lo: 59°F Lo: 15°C |
Friday... Sunny. Highs in the lower to mid 80s. |
| Sat Hi: 83°FHi: 28°C |
Saturday... Mostly sunny. Highs in the lower to mid 80s. |
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