Sammamish weather
At 5:30 PM local time it was mostly clear and 9°C (49°F). Little to no rain in the next 24 hours. Best months for weather: Jun–Sep. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Sammamish, Washington, United States.
Current conditions
- Clouds
- 42%
- Chance of rain
- 0%
- Rain
- 0.0 mm/h
Hourly Forecast
Little to no rain in the next 24 hours
Daily Forecast
Best Time to Visit
Peak season Jun–SepOff season Nov–Mar
About Sammamish weather
Is it raining in Sammamish right now?
No. It’s mostly clear and 9° right now. Little to no rain in the next 24 hours.
What’s the weather like in Sammamish this week?
Over the next 7 days, expect highs of 12–16° and lows of 2–11°. Rain is likely on 2 of 7 days (Thursday, Friday). The driest day looks like Monday.
Has it been raining in Sammamish lately?
In the past 7 days, Sammamish had 3 rainy days and 5.8 mm of rain in total.
What should I pack for Sammamish?
For the coming week, bring an umbrella or rain jacket and a warm winter coat.
Sammamish weather by month
When is the best time to visit Sammamish?
Based on weather alone, the best time to visit Sammamish is Jun–Sep, according to NASA's 2001–2025 climate averages. Nov–Mar tends to be the least pleasant. Average highs run from 4°C (38°F) in December to 22°C (72°F) in August.
What is the rainiest month in Sammamish?
November is the wettest month, with about 256 mm (10.1 in) of rain on average. July is the driest, with about 27 mm (1.1 in).
What is the hottest month in Sammamish?
August is the warmest, with average highs of 22°C (72°F) and lows of 12°C (53°F). December is the coolest, with highs of 4°C (38°F) and lows of -1°C (29°F).
Does Sammamish have a rainy season?
Yes. Oct–Mar is the rainy season (150 mm or more a month), while Jul–Aug is usually dry (under 60 mm).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months