Weather WorldMount Si High School, WA 7-Day Night Weather Forecast
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Mount Si High School, WA Weather Forecast
Mount Si High School, WA Weather Forecast Date: 236 PM PDT Sat Aug 29 2026
The area/counties/county of: Foothills And Valleys Of The Central King County Cascades, including the cities of: North Bend, Snoqualmie, and Carnation.or toggle through each period.
Tonight... Mostly cloudy. A slight chance of rain in the evening. Patchy fog late in the night. Lows near 50. Light wind.
Sunday... Partly sunny. Patchy fog in the morning. Highs near 70. Light wind.
Sunday Night... Partly cloudy. Patchy fog after midnight. Lows near 50. Light wind.
Monday... Mostly sunny. Patchy fog in the morning. Highs in the 70s to lower 80s. Light wind.
Monday Night... Partly cloudy in the evening then becoming mostly cloudy. Areas of fog after midnight. Lows in the lower to mid 50s. Light wind.
Tuesday... Partly sunny. Patchy fog in the morning. A slight chance of thunderstorms in the afternoon. Highs in the lower to mid 70s.
Tuesday Night... Mostly cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then a chance of rain after midnight. Lows in the lower to mid 50s.
Wednesday... Cloudy with a chance of rain in the morning, then cloudy with showers likely and a slight chance of thunderstorms in the afternoon. Highs in the mid to upper 60s.
Wednesday Night... Mostly cloudy with rain at times in the evening, then mostly cloudy with a chance of rain after midnight. Lows in the lower 50s.
Thursday... Mostly cloudy with a chance of rain in the morning, then mostly cloudy with showers likely and a slight chance of thunderstorms in the afternoon. Highs near 70.
Thursday Night... Mostly cloudy with a chance of rain. Lows near 50.
Friday... Mostly cloudy with a chance of rain. Highs near 70.
Friday Night... Mostly cloudy. A chance of rain in the evening, then a slight chance of rain after midnight. Lows in the lower 50s.
POP = Probability of Precipitation
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