Lake Armstrong, WA 7-Day Weather Forecast
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Lake Armstrong Weather Forecast


Lake Armstrong, WA Weather Forecast Date: 236 AM PDT Sun Aug 30 2026
Weather forecast for Lake Armstrong, WA
| Today Hi: 65°FHi: 18°C Lo: 50°F Lo: 10°C |
Today... Cloudy until late afternoon then becoming partly sunny. Patchy fog in the morning. A slight chance of showers late in the morning. Highs in the 60s. South wind to 10 mph. Gusts to 20 mph in the afternoon. |
| Mon Hi: 70°FHi: 21°C Lo: 53°F Lo: 12°C |
Monday... Mostly sunny. Patchy fog in the morning. Highs in the upper 60s to mid 70s. Light wind becoming northwest to 10 mph in the afternoon. |
| Tue Hi: 66°FHi: 19°C Lo: 53°F Lo: 12°C |
Tuesday... Partly sunny. Highs in the mid 60s to lower 70s. Southeast wind to 10 mph becoming southwest in the afternoon. |
| Wed Hi: 67°FHi: 19°C Lo: 51°F Lo: 11°C |
Wednesday... Windy. Mostly cloudy with a chance of rain. Highs in the mid to upper 60s. |
| Thu Hi: 67°FHi: 19°C Lo: 50°F Lo: 10°C |
Thursday... Mostly cloudy. A chance of rain in the morning, then a chance of showers and a slight chance of thunderstorms in the afternoon. Highs in the mid to upper 60s. |
| Fri Hi: 66°FHi: 19°C Lo: 50°F Lo: 10°C |
Friday... Partly sunny with a slight chance of rain. Highs in the mid 60s to lower 70s. |
| Sat Hi: 70°FHi: 21°C |
Saturday... Partly sunny. Highs near 70. |
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