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.

Overcast

45°F

7°C

Humidity 81%
Wind Speed N 0 MPH
Barometer 30.35 in (1027.77 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 03 Dec 04:00 AM PST
Extended Forecast for

3 Miles NNE Newcastle WA

  • Today

    Today: Patchy fog before noon. Otherwise, mostly cloudy, with a high near 45. Calm wind.

    High: 45 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tonight

    Tonight: A 50 percent chance of rain, mainly after 1am. Patchy fog before 11pm, then patchy fog after midnight. Otherwise, mostly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Patchy Fog
    then Chance
    Rain and
    Patchy Fog

  • Thursday

    Thursday: Rain. High near 47. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 47 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely. Cloudy, with a low around 43. Light south southeast wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Rain Likely

  • Friday

    Friday: Rain. High near 53. South southwest wind 6 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Rain

  • Friday Night

    Friday Night: Rain. Low around 47. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Rain

  • Saturday

    Saturday: Rain. High near 52. Chance of precipitation is 90%.

    High: 52 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Rain Likely

  • Sunday

    Sunday: Rain. Cloudy, with a high near 54.

    High: 54 °F

    Rain

Detailed Forecast

Today
Patchy fog before noon. Otherwise, mostly cloudy, with a high near 45. Calm wind.
Tonight
A 50 percent chance of rain, mainly after 1am. Patchy fog before 11pm, then patchy fog after midnight. Otherwise, mostly cloudy, with a low around 40. Calm wind.
Thursday
Rain. High near 47. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain likely. Cloudy, with a low around 43. Light south southeast wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain. High near 53. South southwest wind 6 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Rain. Low around 47. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain. High near 52. Chance of precipitation is 90%.
Saturday Night
Rain likely. Mostly cloudy, with a low around 46.
Sunday
Rain. Cloudy, with a high near 54.
Sunday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 45.
Monday
Rain likely. Cloudy, with a high near 54.
Monday Night
Rain. Cloudy, with a low around 48.
Tuesday
Rain. Cloudy, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Newcastle WA
 47.59°N 122.12°W (Elev. 256 ft)
Last Update:
1:25 am PST Dec 3, 2025
Forecast Valid:
4am PST Dec 3, 2025-6pm PST Dec 9, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation