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

59°F

15°C

Humidity 83%
Wind Speed N 0 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 54°F (12°C)
Visibility 9.00 mi
Last update 08 Oct 12:08 PM PDT
Extended Forecast for

3 Miles E Newcastle WA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 67. Calm wind.

    High: 67 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 52. Light and variable wind becoming south 11 to 16 mph after midnight. Winds could gust as high as 22 mph.

    Low: 52 °F

    Increasing
    Clouds

  • Friday

    Friday: Rain, mainly before 1pm. High near 56. South southwest wind 12 to 17 mph becoming light and variable in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Rain then
    Rain Likely

  • Friday Night

    Friday Night: A 50 percent chance of rain, mainly between 7pm and 1am. Cloudy, with a low around 46. Light and variable wind becoming south 5 to 10 mph in the evening.

    Low: 46 °F

    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain before 11am. Partly sunny, with a high near 54. South wind 5 to 7 mph becoming calm in the morning.

    High: 54 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 40.

    Low: 40 °F

    Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 59.

    High: 59 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 67. Calm wind.
Tonight
Increasing clouds, with a low around 52. Light and variable wind becoming south 11 to 16 mph after midnight. Winds could gust as high as 22 mph.
Friday
Rain, mainly before 1pm. High near 56. South southwest wind 12 to 17 mph becoming light and variable in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 50 percent chance of rain, mainly between 7pm and 1am. Cloudy, with a low around 46. Light and variable wind becoming south 5 to 10 mph in the evening.
Saturday
A 20 percent chance of rain before 11am. Partly sunny, with a high near 54. South wind 5 to 7 mph becoming calm in the morning.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Sunny, with a high near 57.
Sunday Night
Clear, with a low around 40.
Columbus Day
Sunny, with a high near 59.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
A slight chance of rain. Partly sunny, with a high near 57.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 47.
Wednesday
A chance of rain. Partly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Newcastle WA
 47.53°N 122.11°W (Elev. 1237 ft)
Last Update:
11:26 am PDT Oct 8, 2026
Forecast Valid:
12pm PDT Oct 8, 2026-6pm PDT Oct 14, 2026
 
Forecast Discussion
 
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Additional Resources

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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