Sammamish, WA Weather Forecast for 5-Days

Updated: Sun Nov 9th 2025 7:30 PM PST

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Sammamish, WA Weather – 11-9 – Sunny
64° / 46°
Sunny
Bright and sunny conditions in Sammamish, with a high of 64°F and a low of 46°F. Winds will be light at 6mph and gusts of 11.7mph at 10 PM. The humidity will be on the higher side, averaging about 67%, the maximum being 68% at 11 PM and 61% being its lowest at 8 PM. Barometric pressure is its highest of 30.16inHg at 10 PM, a lowest point of 30.15inHg at 8 PM with an avg 30.16inHg.
Sammamish, WA Weather – 11-10 – Scattered Showers
56° / 47°
Scattered Showers
Daytime highs will reach 56°F with lows dropping to 47°F in Sammamish, where showers likely at times. The chance of rain is 81% with an estimated 0.03in. Winds will be light at 8mph and gusts of 12.2mph at 12 AM. High humidity with average of 85% is anticipated, the maximum being 95% at 10 AM and 66% being its lowest at 3 AM. Barometric pressure is its highest of 30.27inHg at 11 PM, a lowest point of 30.17inHg at 12 AM with an avg 30.2inHg.
Sammamish, WA Weather – 11-11 – Overcast
50° / 45°
Overcast
Sammamish may see cloud-filled skies, with daytime highs of 50°F and overnight lows near 45°F. Winds will be light at 4mph and gusts of 6.3mph at 7 PM. High humidity with average of 82% is anticipated, the maximum being 88% at 2 AM and 74% being its lowest at 2 PM. Barometric pressure is its highest of 30.29inHg at 2 AM, a lowest point of 29.92inHg at 10 PM with an avg 30.16inHg.
Sammamish, WA Weather – 11-12 – Heavy Rain
48° / 47°
Heavy Rain
In Sammamish, it will rain at times with highs near 48°F and lows around 47°F. The chance of rain is 87% with an estimated 0.96in. Winds will be light at 5mph and gusts of 8.1mph at 7 PM. High humidity with average of 82% is anticipated, the maximum being 96% at 2 PM and 67% being its lowest at 6 AM. Barometric pressure is its highest of 29.88inHg at 12 AM, a lowest point of 29.45inHg at 10 PM with an avg 29.7inHg.
Sammamish, WA Weather – 11-13 – Moderate Rain
47° / 42°
Moderate Rain
Sammamish could see rain with daytime highs of 47°F and nighttime lows near 42°F. The chance of rain is 88% with an estimated 0.43in. Wind will be moderate, blowing around 15mph on average and gusts of 19.2mph at 4 AM. High humidity with average of 85% is anticipated, the maximum being 93% at 3 AM and 79% being its lowest at 2 PM. Barometric pressure is its highest of 29.72inHg at 11 PM, a lowest point of 29.3inHg at 2 AM with an avg 29.59inHg.
Sammamish, WA Weather – 11-14 – Scattered Showers
46° / 41°
Scattered Showers
Sammamish may see passing showers, with daytime highs of 46°F and overnight lows near 41°F. The chance of rain is 81% with an estimated 0.04in. Winds will be light at 8mph and gusts of 11.4mph at 1 AM. High humidity with average of 86% is anticipated, the maximum being 94% at 11 PM and 74% being its lowest at 2 PM. Barometric pressure is its highest of 29.93inHg at 10 PM, a lowest point of 29.72inHg at 12 AM with an avg 29.83inHg.

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