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Foster, WA Weather Forecast
Foster, WA Weather Forecast Date: 236 PM PDT Thu Sep 17 2026
The area/counties/county of: Foothills And Valleys Of The Thurston And Lewis County Cascades, including the cities of: Randle, Packwood, and Morton.or toggle through each period.
Tonight... Clear. Lows near 50. Light wind.
Friday... Sunny. Highs in the lower to mid 70s. Light wind.
Friday Night... Mostly clear. Lows near 50. Light wind.
Saturday... Mostly sunny. Highs in the lower to mid 70s. Light wind.
Saturday Night... Mostly clear. Lows near 50. Light wind.
Sunday... Sunny. Highs in the mid 70s.
Sunday Night... Mostly clear. Lows near 50.
Monday... Partly sunny. Highs in the lower 70s.
Monday Night... Partly cloudy. Lows near 50.
Tuesday... Mostly cloudy. A slight chance of rain in the morning. Highs in the mid to upper 60s.
Tuesday Night... Partly cloudy. Lows in the mid to upper 40s.
Wednesday... Partly sunny. Highs in the upper 60s.
Wednesday Night... Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 40s.
POP = Probability of Precipitation
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