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Current weather in Issaquah is overcast clouds.

Where can I find the hourly weather forecast for Issaquah?

This page shows hourly weather forecast for Issaquah, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Issaquah updated regularly?

Weather data for Issaquah is updated regularly with the latest available observations and forecasts.

Now · 10:23 PM

Issaquah Weather & Hourly Forecast

United States · Washington · 98027

59°F

Overcast night

Feels like: 59°F

💧 Humidity 81% 🌡 Pressure 30.09 inHg 💨 Wind 5 mph 👁 Visibility 6.2 mi ☁ Clouds 100% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:23 AM 🌇 Sunset 7:55 PM

Hourly Forecast for Issaquah

Today

11:00 PM

Overcast night

59° 💧 None 💨 5 mph H 81%30.09 inHg

Tomorrow

2:00 AM

Mostly cloudy night

57° 💧 None 💨 4 mph H 88%30.09 inHg

5:00 AM

Mostly cloudy night

57° 💧 None 💨 3 mph H 85%30.09 inHg

8:00 AM

Overcast

57° 💧 None 💨 4 mph H 82%30.12 inHg

11:00 AM

Overcast

63° 💧 None 💨 4 mph H 65%30.12 inHg

2:00 PM

Overcast

67° 💧 None 💨 3 mph H 55%30.06 inHg

5:00 PM

Overcast

69° 💧 None 💨 5 mph H 45%30.03 inHg

8:00 PM

Mostly cloudy night

63° 💧 None 💨 5 mph H 70%30.00 inHg

11:00 PM

Mostly cloudy night

58° 💧 None 💨 4 mph H 80%30.00 inHg

Monday

2:00 AM

Partly cloudy night

57° 💧 None 💨 3 mph H 89%29.97 inHg

5:00 AM

Partly cloudy night

57° 💧 None 💨 3 mph H 93%29.94 inHg

8:00 AM

Mostly cloudy

59° 💧 None 💨 3 mph H 79%29.94 inHg

11:00 AM

Mostly cloudy

71° 💧 None 💨 5 mph H 51%29.88 inHg

2:00 PM

Mostly cloudy

78° 💧 None 💨 7 mph H 38%29.83 inHg

5:00 PM

Mostly cloudy

77° 💧 None 💨 7 mph H 40%29.80 inHg

8:00 PM

Overcast night

63° 💧 None 💨 5 mph H 66%29.80 inHg

Today

11:00 PM

Overcast night

59° 💧 None 💨 5 mph H 81%30.09 inHg

Tomorrow

12:00 AM

Mostly cloudy night

59° 💧 None 💨 5 mph H 82%30.09 inHg

1:00 AM

Mostly cloudy night

58° 💧 None 💨 4 mph H 85%30.09 inHg

2:00 AM

Mostly cloudy night

57° 💧 None 💨 4 mph H 88%30.09 inHg

3:00 AM

Partly cloudy night

56° 💧 None 💨 4 mph H 91%30.09 inHg

4:00 AM

Mostly cloudy night

56° 💧 None 💨 3 mph H 89%30.09 inHg

5:00 AM

Mostly cloudy night

57° 💧 None 💨 3 mph H 85%30.09 inHg

6:00 AM

Overcast night

57° 💧 None 💨 3 mph H 84%30.09 inHg

7:00 AM

Overcast

56° 💧 None 💨 4 mph H 84%30.09 inHg

8:00 AM

Overcast

57° 💧 None 💨 4 mph H 82%30.12 inHg

9:00 AM

Overcast

59° 💧 None 💨 4 mph H 77%30.12 inHg

10:00 AM

Overcast

61° 💧 None 💨 5 mph H 74%30.12 inHg

11:00 AM

Overcast

63° 💧 None 💨 4 mph H 65%30.12 inHg

12:00 PM

Overcast

66° 💧 None 💨 4 mph H 60%30.09 inHg

1:00 PM

Overcast

69° 💧 None 💨 4 mph H 52%30.09 inHg

2:00 PM

Overcast

67° 💧 None 💨 3 mph H 55%30.06 inHg

3:00 PM

Overcast

69° 💧 None 💨 2 mph H 53%30.06 inHg

4:00 PM

Overcast

70° 💧 None 💨 4 mph H 46%30.03 inHg

5:00 PM

Overcast

69° 💧 None 💨 5 mph H 45%30.03 inHg

6:00 PM

Overcast

69° 💧 None 💨 6 mph H 49%30.00 inHg

7:00 PM

Mostly cloudy

66° 💧 None 💨 5 mph H 56%30.00 inHg

8:00 PM

Mostly cloudy night

63° 💧 None 💨 5 mph H 70%30.00 inHg

9:00 PM

Mostly cloudy night

61° 💧 None 💨 4 mph H 75%30.00 inHg

10:00 PM

Mostly cloudy night

60° 💧 None 💨 4 mph H 77%30.00 inHg

11:00 PM

Mostly cloudy night

58° 💧 None 💨 4 mph H 80%30.00 inHg

Monday

12:00 AM

Mostly cloudy night

58° 💧 None 💨 4 mph H 84%30.00 inHg

1:00 AM

Mostly cloudy night

58° 💧 None 💨 3 mph H 87%30.00 inHg

2:00 AM

Partly cloudy night

57° 💧 None 💨 3 mph H 89%29.97 inHg

3:00 AM

Partly cloudy night

57° 💧 None 💨 3 mph H 90%29.97 inHg

4:00 AM

Partly cloudy night

57° 💧 None 💨 3 mph H 92%29.97 inHg

5:00 AM

Partly cloudy night

57° 💧 None 💨 3 mph H 93%29.94 inHg

6:00 AM

Overcast night

56° 💧 None 💨 3 mph H 93%29.94 inHg

7:00 AM

Mostly cloudy

56° 💧 None 💨 3 mph H 91%29.94 inHg

8:00 AM

Mostly cloudy

59° 💧 None 💨 3 mph H 79%29.94 inHg

9:00 AM

Mostly cloudy

64° 💧 None 💨 4 mph H 68%29.91 inHg

10:00 AM

Mostly cloudy

68° 💧 None 💨 5 mph H 59%29.91 inHg

11:00 AM

Mostly cloudy

71° 💧 None 💨 5 mph H 51%29.88 inHg

12:00 PM

Partly cloudy

73° 💧 None 💨 5 mph H 45%29.85 inHg

1:00 PM

Mostly cloudy

76° 💧 None 💨 6 mph H 40%29.85 inHg

2:00 PM

Mostly cloudy

78° 💧 None 💨 7 mph H 38%29.83 inHg

3:00 PM

Mostly cloudy

79° 💧 None 💨 7 mph H 37%29.80 inHg

4:00 PM

Mostly cloudy

78° 💧 None 💨 7 mph H 38%29.80 inHg

5:00 PM

Mostly cloudy

77° 💧 None 💨 7 mph H 40%29.80 inHg

6:00 PM

Overcast

74° 💧 None 💨 7 mph H 45%29.80 inHg

7:00 PM

Overcast

69° 💧 None 💨 6 mph H 53%29.80 inHg

8:00 PM

Overcast night

63° 💧 None 💨 5 mph H 66%29.80 inHg

9:00 PM

Overcast night

60° 💧 None 💨 3 mph H 72%29.83 inHg

10:00 PM

Overcast night

59° 💧 None 💨 2 mph H 76%29.83 inHg

11:00 PM

Overcast night

58° 💧 None 💨 2 mph H 78%29.83 inHg

Tuesday

12:00 AM

Overcast night

57° 💧 None 💨 2 mph H 81%29.83 inHg

1:00 AM

Overcast night

56° 💧 None 💨 1 mph H 85%29.83 inHg

2:00 AM

Mostly cloudy night

55° 💧 None 💨 1 mph H 87%29.83 inHg

3:00 AM

Mostly cloudy night

55° 💧 None 💨 2 mph H 88%29.83 inHg

4:00 AM

Partly cloudy night

55° 💧 None 💨 2 mph H 90%29.85 inHg

5:00 AM

Mostly cloudy night

54° 💧 None 💨 2 mph H 90%29.85 inHg

6:00 AM

Overcast night

54° 💧 None 💨 2 mph H 90%29.85 inHg

7:00 AM

Mostly cloudy

55° 💧 None 💨 3 mph H 89%29.85 inHg

8:00 AM

Overcast

59° 💧 None 💨 3 mph H 78%29.85 inHg

9:00 AM

Overcast

63° 💧 None 💨 3 mph H 66%29.85 inHg

10:00 AM

Overcast

67° 💧 None 💨 4 mph H 57%29.85 inHg

11:00 AM

Overcast

70° 💧 None 💨 5 mph H 49%29.85 inHg

12:00 PM

Overcast

73° 💧 None 💨 5 mph H 45%29.85 inHg

1:00 PM

Overcast

75° 💧 None 💨 6 mph H 43%29.83 inHg

2:00 PM

Overcast

77° 💧 None 💨 6 mph H 40%29.83 inHg

3:00 PM

Mostly cloudy

79° 💧 None 💨 6 mph H 38%29.80 inHg

4:00 PM

Mostly cloudy

80° 💧 None 💨 6 mph H 37%29.80 inHg

5:00 PM

Mostly cloudy

79° 💧 None 💨 7 mph H 39%29.77 inHg

6:00 PM

Overcast

76° 💧 None 💨 9 mph H 45%29.80 inHg

7:00 PM

Overcast

71° 💧 None 💨 8 mph H 52%29.83 inHg

8:00 PM

Overcast night

66° 💧 None 💨 4 mph H 60%29.85 inHg

9:00 PM

Overcast night

64° 💧 None 💨 4 mph H 66%29.85 inHg

10:00 PM

Overcast night

64° 💧 None 💨 5 mph H 67%29.88 inHg

11:00 PM

Overcast night

63° 💧 None 💨 6 mph H 70%29.88 inHg

Wednesday

12:00 AM

Overcast night

62° 💧 None 💨 5 mph H 73%29.85 inHg

1:00 AM

Overcast night

62° 💧 None 💨 6 mph H 75%29.85 inHg

2:00 AM

Overcast night

59° 💧 None 💨 5 mph H 84%29.85 inHg

3:00 AM

Overcast night

61° 💧 None 💨 5 mph H 79%29.85 inHg

4:00 AM

Overcast night

60° 💧 None 💨 4 mph H 79%29.85 inHg

5:00 AM

Overcast night

60° 💧 None 💨 4 mph H 80%29.85 inHg

6:00 AM

Overcast night

60° 💧 None 💨 4 mph H 81%29.83 inHg

7:00 AM

Light rain

59° 💧 0.00 in 💨 4 mph H 89%29.85 inHg

8:00 AM

Light rain

59° 💧 0.01 in 💨 3 mph H 94%29.85 inHg

9:00 AM

Light rain

58° 💧 0.01 in 💨 3 mph H 95%29.85 inHg

10:00 AM

Light rain

63° 💧 0.00 in 💨 5 mph H 81%29.85 inHg

11:00 AM

Overcast

62° 💧 None 💨 3 mph H 84%29.85 inHg

12:00 PM

Light rain

67° 💧 0.01 in 💨 6 mph H 64%29.85 inHg

1:00 PM

Light rain

66° 💧 0.03 in 💨 9 mph H 74%29.83 inHg

2:00 PM

Light rain

60° 💧 0.02 in 💨 5 mph H 92%29.85 inHg

3:00 PM

Overcast

60° 💧 None 💨 4 mph H 92%29.83 inHg

4:00 PM

Overcast

62° 💧 None 💨 6 mph H 84%29.83 inHg

5:00 PM

Overcast

62° 💧 None 💨 6 mph H 81%29.83 inHg

6:00 PM

Light rain

60° 💧 0.01 in 💨 7 mph H 87%29.83 inHg

7:00 PM

Moderate rain

58° 💧 0.04 in 💨 6 mph H 95%29.83 inHg

8:00 PM

Light rain

58° 💧 0.01 in 💨 4 mph H 96%29.83 inHg

9:00 PM

Light rain

58° 💧 0.01 in 💨 3 mph H 96%29.83 inHg

10:00 PM

Overcast night

58° 💧 None 💨 4 mph H 95%29.83 inHg

In Issaquah and, more broadly, across the state of Washington: This evening will feature a mix of sun and clouds, with temperatures remaining cool, ranging from 52 to 55 degrees Fahrenheit. Light west winds will prevail, steady at around 5 mph, with occasional gusts up to 7 mph. There is a possibility of light rain, with an estimated accumulation of about 0.01 inches, and the highest chance of precipitation occurring in the next few hours. Overall, expect a mild evening with patchy showers possible as the night progresses. Conditions will be relatively calm, with no significant wind activity expected. Temperatures are likely to stay steady through the evening and into the early night.

15-Day Weather Outlook for Issaquah

TomorrowTomorrow

Overcast 70°/56° 💧 None 💨 6 mph

Monday, Aug 31Mon Aug 31

Mostly cloudy 79°/56° 💧 None 💨 7 mph

Tuesday, Sep 1Tue Sep 1

Overcast 80°/54° 💧 None 💨 9 mph

Wednesday, Sep 2Wed Sep 2

Light rain 62°/57° 💧 0.20 in 💨 6 mph

Thursday, Sep 3Thu Sep 3

Light rain 73°/54° 💧 0.14 in 💨 8 mph

Friday, Sep 4Fri Sep 4

Light rain 71°/49° 💧 0.14 in 💨 7 mph

Saturday, Sep 5Sat Sep 5

Light rain 70°/56° 💧 0.18 in 💨 4 mph

Sunday, Sep 6Sun Sep 6

Sunny 80°/53° 💧 None 💨 6 mph

Monday, Sep 7Mon Sep 7

Sunny 88°/58° 💧 None 💨 3 mph

Tuesday, Sep 8Tue Sep 8

Sunny 88°/62° 💧 None 💨 7 mph

Wednesday, Sep 9Wed Sep 9

Mostly cloudy 92°/63° 💧 None 💨 7 mph

Thursday, Sep 10Thu Sep 10

Sunny 86°/68° 💧 None 💨 9 mph

Friday, Sep 11Fri Sep 11

Light rain 68°/59° 💧 0.04 in 💨 8 mph

Saturday, Sep 12Sat Sep 12

Partly cloudy 73°/54° 💧 None 💨 9 mph

Sunday, Sep 13Sun Sep 13

Mostly cloudy 79°/53° 💧 None 💨 8 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Issaquah

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Issaquah

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 11:00 PM

PM2.5 Fine particles Good 1,4µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 3,5µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 40,9µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 2,6µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Issaquah

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 4,7Moderate 😊Good

Tomorrow UV 2,5Low 🙂Fair

Monday UV 5,7Moderate 🙂Fair

Tuesday UV 5,1Moderate 😊Good

Wednesday UV 0,6Low 😊Good

Thursday UV 6,0High —Unavailable

Friday UV 4,0Moderate —Unavailable

Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Issaquah

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

Internal PR simulation: 4.56 Population: 39,591

DISCOVER WEATHER NEARBY Weather in other cities

Explore current conditions and forecasts for other locations.

Forecast data for Issaquah were last refreshed today at 10:23 PM. The current forecast period extends through 31/08/2026 at 8:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.