National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Flooding Possible in the Southwest U.S.; Coastal Storm to Impact the East

Heavy to excessive rainfall is expected today into Wednesday over New Mexico into far west Texas. Flash flooding and debris flows in wildfire burn areas will be possible. A strong coastal storm will develop off the Mid-Atlantic coast Wednesday, intensifying toward southern New England this weekend. Significant coastal flooding, strong rip currents, and beach erosion from high surf expected. Read More >

Current conditions at

EW6690 Maple Valley (E6690)

Lat: 47.442°NLon: 122.01433°WElev: 742.16ft.

NA

51°F

11°C

Humidity 89%
Wind Speed E 0 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 48°F (9°C)
Visibility NA
Last update 23 Sep 03:09 AM PDT
Extended Forecast for

Issaquah WA

  • Overnight

    Overnight: Mostly cloudy, with a low around 51. Light south wind.

    Low: 51 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 67. Light and variable wind.

    High: 67 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 49. Calm wind.

    Low: 49 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, with a high near 63. Calm wind.

    High: 63 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Rain. Low around 52. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Rain

  • Friday

    Friday: Rain before 11am, then showers and possibly a thunderstorm after 11am. High near 60. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 60 °F

    Showers

  • Friday Night

    Friday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.

    Low: 49 °F

    Rain Likely
    then Slight
    Chance Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 51. Light south wind.
Wednesday
Mostly cloudy, with a high near 67. Light and variable wind.
Wednesday Night
Increasing clouds, with a low around 49. Calm wind.
Thursday
Mostly cloudy, with a high near 63. Calm wind.
Thursday Night
Rain. Low around 52. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain before 11am, then showers and possibly a thunderstorm after 11am. High near 60. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
Mostly cloudy, with a low around 46.
Sunday
Partly sunny, with a high near 64.
Sunday Night
Partly cloudy, with a low around 47.
Monday
Partly sunny, with a high near 65.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 49.
Tuesday
A chance of rain. Mostly cloudy, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Issaquah WA
 47.54°N 122.05°W (Elev. 200 ft)
Last Update:
11:26 pm PDT Sep 22, 2026
Forecast Valid:
3am PDT Sep 23, 2026-6pm PDT Sep 29, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation