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

Renton Municipal Airport (KRNT)

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

Partly Cloudy

52°F

11°C

Humidity 71%
Wind Speed S 4 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 20 Nov 10:53 AM PST
Extended Forecast for

Sammamish WA

  • Today

    Today: Mostly sunny, with a high near 54. Calm wind.

    High: 54 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of rain after 3am. Partly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Friday

    Friday: A 20 percent chance of rain. Partly sunny, with a high near 54. Light south wind.

    High: 54 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 47. South wind around 5 mph.

    Low: 47 °F

    Chance Rain

  • Saturday

    Saturday: A 50 percent chance of rain. Patchy fog between 10am and 11am. Otherwise, mostly cloudy, with a high near 56. Light south wind.

    High: 56 °F

    Chance Rain
    and Patchy
    Fog

  • Saturday Night

    Saturday Night: Rain likely, mainly after 10pm. Mostly cloudy, with a low around 47. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Rain Likely

  • Sunday

    Sunday: Rain. High near 54. Chance of precipitation is 80%.

    High: 54 °F

    Rain

  • Sunday Night

    Sunday Night: Rain. Cloudy, with a low around 40.

    Low: 40 °F

    Rain

  • Monday

    Monday: Rain likely, mainly before 10am. Partly sunny, with a high near 49.

    High: 49 °F

    Rain Likely

Detailed Forecast

Today
Mostly sunny, with a high near 54. Calm wind.
Tonight
A 20 percent chance of rain after 3am. Partly cloudy, with a low around 40. Calm wind.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 54. Light south wind.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 47. South wind around 5 mph.
Saturday
A 50 percent chance of rain. Patchy fog between 10am and 11am. Otherwise, mostly cloudy, with a high near 56. Light south wind.
Saturday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 47. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain. High near 54. Chance of precipitation is 80%.
Sunday Night
Rain. Cloudy, with a low around 40.
Monday
Rain likely, mainly before 10am. Partly sunny, with a high near 49.
Monday Night
A slight chance of rain before 10pm. Mostly cloudy, with a low around 37.
Tuesday
Partly sunny, with a high near 48.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 36.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sammamish WA
 47.62°N 122.07°W (Elev. 200 ft)
Last Update:
7:00 am PST Nov 20, 2025
Forecast Valid:
11am PST Nov 20, 2025-6pm PST Nov 26, 2025
 
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