Sammamish, Washington Weather:
Thursday, September 17, 2026
Cloudy Weather
Day 73°
Night 54°
Precipitation 4 %
Wind 4 mph
Weather Forecast History
Last Year's Weather on This Day (September 17, 2025)
Sunny Weather

Day

77°

Night

52°

Wind

6 mph

UV Index

40

Precipitation

1 %