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Weather in West Lake Sammamish, United States 🇺🇸

Weather Forecast in West Lake Sammamish

Current Weather in West Lake Sammamish

Heat Advisory issued July 20 at 3:30AM PDT until July 22 at 11:00PM PDT by NWS Seattle WA
Sunny
26°C
Feels like 26°C. Sunny.
🌬️ 7 km/h NW
💧 47% Humidity
🧭 1014 hPa
👁️ 16.0 km Visibility
☀️ UV Index: 5.0
🌡️ Dew Point: 18°C
🌅 Sunrise: 05:31 AM
🌇 Sunset: 08:57 PM
Map Overlays:

Right now West Lake Sammamish is 26°C with sunny, feeling like 26°C. Humidity sits at 47% and winds are near 7 km/h, and the UV index is 5 (moderate). The next few days in West Lake Sammamish look set for about 14°C up to 35°C. ⚠️ Heat Advisory issued July 20 at 3:30AM PDT until July 22 at 11:00PM PDT by NWS Seattle WA

Hourly Forecast for West Lake Sammamish

16:00
Sunny
34°
1%
17:00
Sunny
33°
1%
18:00
Sunny
32°
0%
19:00
Sunny
31°
0%
20:00
Sunny
29°
1%
21:00
Clear
26°
1%
22:00
Clear
24°
2%
23:00
Clear
23°
3%
00:00
Clear
22°
3%
01:00
Clear
21°
4%
02:00
Clear
20°
4%
03:00
Clear
19°
4%
04:00
Clear
18°
4%
05:00
Clear
15°
10%
06:00
Sunny
16°
9%
07:00
Sunny
18°
7%
08:00
Sunny
22°
4%
09:00
Sunny
25°
3%
10:00
Sunny
27°
1%
11:00
Sunny
29°
1%
12:00
Sunny
31°
1%
13:00
Sunny
33°
1%
14:00
Sunny
34°
1%
15:00
Sunny
34°
1%

14-Day Forecast for West Lake Sammamish

Mon, Jul 20
Sunny Sunny
34° / 14°
Tue, Jul 21
Sunny Sunny
34° / 15°
Wed, Jul 22
Sunny Sunny
35° / 15°
Thu, Jul 23
Sunny Sunny
34° / 16°
Fri, Jul 24
Sunny Sunny
29° / 13°
Sat, Jul 25
Sunny Sunny
27° / 12°
Sun, Jul 26
Sunny Sunny
27° / 11°
Mon, Jul 27
Sunny Sunny
29° / 12°
Tue, Jul 28
Sunny Sunny
22° / 10°
Wed, Jul 29
Sunny Sunny
25° /
Thu, Jul 30
Sunny Sunny
22° /
Fri, Jul 31
Sunny Sunny
26° /
Sat, Aug 01
Sunny Sunny
31° / 11°
Sun, Aug 02
Sunny Sunny
34° / 15°

Additional Forecasts for West Lake Sammamish

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 125.0 μg/m³
O₃ (Ozone) 126.0 μg/m³
NO₂ (Nitrogen Dioxide) 4.3 μg/m³
SO₂ (Sulphur Dioxide) 4.3 μg/m³
PM2.5 (Fine particles) 12.4 μg/m³
PM10 (Coarse particles) 12.8 μg/m³

Historical Weather

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Best Time to Be Outside in West Lake Sammamish Tomorrow

There is no good daylight window left in West Lake Sammamish today. Tomorrow, the most comfortable window looks like 08:00 to 09:00, when it is around 24°C. It should stay dry through that window. No significant rain is expected in the next several hours.

Frequently Asked Questions about Weather in West Lake Sammamish

What is the temperature in West Lake Sammamish right now?

West Lake Sammamish is sitting at 26°C (79°F) right now, sunny (feels like 26°C).

What's the weather like in West Lake Sammamish right now?

Conditions in West Lake Sammamish right now: Sunny, humidity 47%, wind 7 km/h NW.

What is today's forecast for West Lake Sammamish?

Today in West Lake Sammamish: high 34°C, low 14°C, sunny. Chance of rain: 3%.

What is the 7-day weather forecast for West Lake Sammamish?

Daily highs and lows for West Lake Sammamish:

  • 2026-07-20: 34°C / 14°C
  • 2026-07-21: 34°C / 15°C
  • 2026-07-22: 35°C / 15°C
  • 2026-07-23: 34°C / 16°C
  • 2026-07-24: 29°C / 13°C
  • 2026-07-25: 27°C / 12°C
  • 2026-07-26: 27°C / 11°C
Is it going to rain in West Lake Sammamish today?

There is a 3% chance of rain in West Lake Sammamish today.

What is the wind speed in West Lake Sammamish right now?

Wind in West Lake Sammamish is currently 7 km/h (4 mph) from the NW.

What is the UV index in West Lake Sammamish right now?

The UV index in West Lake Sammamish is currently 5 (moderate). Sun protection is recommended when the index is 3 or higher.

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