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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

Lat: 47.49509°NLon: 122.21437°WElev: 23.0ft.

Overcast

61°F

16°C

Humidity 82%
Wind Speed N 0 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 28 Aug 04:00 AM PDT
Extended Forecast for

3 Miles NW Issaquah WA

  • Today

    Today: Patchy fog between 7am and 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. Calm wind.

    High: 74 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Rain, mainly after 2am. Low around 54. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Chance Rain
    then Rain

  • Saturday

    Saturday: Rain, mainly before 9am, then a chance of showers and thunderstorms after 11am. Patchy fog between 11am and noon. High near 70. Light west southwest wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Showers and
    Patchy Fog
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 53. Light south wind.

    Low: 53 °F

    Chance Rain
    then Mostly
    Cloudy

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 72. Light south wind.

    High: 72 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 75.

    High: 75 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain after 11am. Partly sunny, with a high near 72.

    High: 72 °F

    Slight Chance
    Rain

Detailed Forecast

Today
Patchy fog between 7am and 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. Calm wind.
Tonight
Rain, mainly after 2am. Low around 54. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain, mainly before 9am, then a chance of showers and thunderstorms after 11am. Patchy fog between 11am and noon. High near 70. Light west southwest wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 53. Light south wind.
Sunday
Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 72. Light south wind.
Sunday Night
Mostly cloudy, with a low around 52.
Monday
Partly sunny, with a high near 75.
Monday Night
Mostly cloudy, with a low around 54.
Tuesday
A slight chance of rain after 11am. Partly sunny, with a high near 72.
Tuesday Night
A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 55.
Wednesday
Rain likely. Mostly cloudy, with a high near 66.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 53.
Thursday
A chance of rain. Mostly cloudy, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Issaquah WA
 47.55°N 122.08°W (Elev. 200 ft)
Last Update:
11:26 pm PDT Aug 27, 2026
Forecast Valid:
4am PDT Aug 28, 2026-6pm PDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation