Live Weather & Forecast
Weather in Issaquah
Washington, United States · Real-time conditions & 3-day outlook
13°C
Feels like 13°C
55°F / Feels 55°F
Light rain
Issaquah, Washington
🌞 Daytime
Updated: 2026-04-12 18:45
Humidity
83%
Wind
4.7 km/h WNW
Wind Gust
6.1 km/h
Pressure
1008 mb
Visibility
8 km
UV Index
0.2
(Low)
Precipitation
0.01 mm
Cloud Cover
100%
Dew Point
9.4°C
Wind Degree
282°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
175.9 μg/m³
NO₂
11.6 μg/m³
O₃
55 μg/m³
SO₂
2.1 μg/m³
PM 2.5
7.8 μg/m³
PM 10
8.4 μg/m³
Weather Alerts 1
Met
· Severe · Future
Winter Storm Watch issued April 12 at 1:40PM PDT until April 16 at 5:00AM PDT by NWS Seattle WA
A strong weather system will bring snow, possibly heavy at times, to the Western Washington Cascades late Tuesday afternoon through late Wednesday night. * WHAT...Heavy snow possible. Total snow accumulations between 10 and 20 inches possible. Winds could gust as high as 35 mph. * WHERE...Cascades of Snohomish and Northern King Counties, Cascades of Whatcom and Skagit Counties, Cascades of Pierc...
Monitor the latest forecasts for updates on this situation.
Today's Hourly Forecast
24-hour breakdown for Issaquah, Washington
12 AM
9°
Clear
1 AM
8°
Clear
2 AM
8°
Clear
3 AM
7°
Clear
4 AM
7°
Clear
5 AM
7°
Clear
6 AM
7°
Clear
7 AM
8°
Partly Cloudy
8 AM
9°
Partly Cloudy
9 AM
10°
Sunny
10 AM
10°
Partly Cloudy
11 AM
11°
Overcast
12 PM
12°
Partly Cloudy
1 PM
13°
Overcast
2 PM
13°
Overcast
3 PM
14°
Overcast
4 PM
14°
Partly Cloudy
5 PM
13°
Overcast
6 PM
13°
Light rain
7 PM
13°
Patchy rain nearby
8 PM
12°
Overcast
9 PM
12°
Overcast
10 PM
11°
Patchy rain nearby
11 PM
10°
Patchy rain nearby
3-Day Forecast
Daily overview for Issaquah, Washington
Today
Patchy rain nearby
14°
/
7°
🌧️ 83% chance of rain
💧 Avg. humidity: 83%
💨 Max wind: 10.4 km/h
🌧️ Total precip: 0.15 mm
☀️ UV Index: 0.9
🌅 Sunrise: 06:25 AM
🌇 Sunset: 07:54 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Patchy rain nearby
11°
/
6°
🌧️ 80% chance of rain
💧 Avg. humidity: 85%
💨 Max wind: 11.9 km/h
🌧️ Total precip: 0.42 mm
☀️ UV Index: 0.1
🌅 Sunrise: 06:23 AM
🌇 Sunset: 07:55 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Heavy rain
7°
/
5°
🌧️ 87% chance of rain
💧 Avg. humidity: 90%
💨 Max wind: 25.2 km/h
🌧️ Total precip: 27.84 mm
☀️ UV Index: 0.3
🌅 Sunrise: 06:21 AM
🌇 Sunset: 07:57 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit Issaquah
Plan your trip to Issaquah, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Issaquah?
Current conditions in Issaquah: Light rain, temperature 13°C, humidity 83%.
What is the best time to visit Issaquah?
The best time to visit Issaquah is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Issaquah?
Issaquah is located at approximately 47.5° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Issaquah?
The wettest period in Issaquah is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Issaquah?
For visits to Issaquah during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Issaquah in?
Issaquah is located in United States, in the state of Washington.
What are the public holidays in Issaquah in 2026?
View the 2026 public holidays for Issaquah on our Holidays page.
What are the GPS coordinates used for the weather forecast in Issaquah?
The weather forecast for Issaquah uses coordinates 47.5349, -122.0433.