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.

Mostly Cloudy

57°F

14°C

Humidity 77%
Wind Speed S 3 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 02 Oct 12:53 AM PDT
Extended Forecast for

3 Miles ENE Newcastle WA

  • Overnight

    Overnight: A 40 percent chance of showers, mainly after 3am. Mostly cloudy, with a steady temperature around 55. Southeast wind around 5 mph.

    Low: 55 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers before 9am, then a chance of showers after 11am. Partly sunny, with a high near 71. Light south southeast wind. Chance of precipitation is 40%.

    High: 71 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 69. Calm wind.

    High: 69 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before 11am. Partly sunny, with a high near 66.

    High: 66 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

Detailed Forecast

Overnight
A 40 percent chance of showers, mainly after 3am. Mostly cloudy, with a steady temperature around 55. Southeast wind around 5 mph.
Thursday
A chance of showers before 9am, then a chance of showers after 11am. Partly sunny, with a high near 71. Light south southeast wind. Chance of precipitation is 40%.
Thursday Night
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 50. Calm wind.
Friday
Partly sunny, with a high near 69. Calm wind.
Friday Night
A 30 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 52. Calm wind.
Saturday
A 20 percent chance of showers before 11am. Partly sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
Mostly sunny, with a high near 69.
Sunday Night
Clear, with a low around 46.
Monday
Sunny, with a high near 73.
Monday Night
Clear, with a low around 47.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Newcastle WA
 47.58°N 122.09°W (Elev. 200 ft)
Last Update:
8:01 pm PDT Oct 1, 2025
Forecast Valid:
1am PDT Oct 2, 2025-6pm PDT Oct 8, 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