Current conditions at

Renton Municipal Airport (KRNT)

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

Overcast

47°F

8°C

Humidity 83%
Wind Speed NW 8 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 02 Dec 12:53 PM PST
Extended Forecast for

Newcastle WA

  • This Afternoon

    This Afternoon: Cloudy, with a high near 47. Calm wind.

    High: 47 °F

    Cloudy

  • Tonight

    Tonight: Cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 45. Calm wind.

    High: 45 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after 10pm.  Mostly cloudy, with a low around 39. Light south southeast wind.

    Low: 39 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: Rain.  High near 47. South southeast wind around 6 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 47 °F

    Rain

  • Thursday Night

    Thursday Night: Rain.  Low around 45. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Rain

  • Friday

    Friday: Rain.  High near 53. Chance of precipitation is 90%.

    High: 53 °F

    Rain

  • Friday Night

    Friday Night: Rain.  Cloudy, with a low around 48.

    Low: 48 °F

    Rain

  • Saturday

    Saturday: Rain.  Mostly cloudy, with a high near 52.

    High: 52 °F

    Rain

Detailed Forecast

This Afternoon
Cloudy, with a high near 47. Calm wind.
Tonight
Cloudy, with a low around 36. Calm wind.
Wednesday
Cloudy, with a high near 45. Calm wind.
Wednesday Night
A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 39. Light south southeast wind.
Thursday
Rain. High near 47. South southeast wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain. Low around 45. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain. High near 53. Chance of precipitation is 90%.
Friday Night
Rain. Cloudy, with a low around 48.
Saturday
Rain. Mostly cloudy, with a high near 52.
Saturday Night
Rain likely. Mostly cloudy, with a low around 46.
Sunday
Rain. Cloudy, with a high near 52.
Sunday Night
Rain likely. Mostly cloudy, with a low around 45.
Monday
Rain likely. Cloudy, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.52°N 122.17°W (Elev. 400 ft)
7:01 am PST Dec 2, 2025
1pm PST Dec 2, 2025-6pm PST Dec 8, 2025
 
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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