Current conditions at

Renton Municipal Airport (KRNT)

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

Overcast

55°F

13°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 03 Oct 11:35 AM PDT
Extended Forecast for

Newcastle WA

  • Today

    Today: A 10 percent chance of showers after 5pm.  Mostly sunny, with a high near 68. West wind 3 to 5 mph.

    High: 68 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 50 percent chance of showers.  Mostly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers likely, mainly after 11am.  Mostly cloudy, with a high near 64. Light north wind.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 64 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before 11pm.  Mostly cloudy, with a low around 48. North northeast wind 3 to 5 mph.

    Low: 48 °F

    Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 65. North northeast wind 5 to 8 mph.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 45.

    Low: 45 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 48.

    Low: 48 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

Detailed Forecast

Today
A 10 percent chance of showers after 5pm. Mostly sunny, with a high near 68. West wind 3 to 5 mph.
Tonight
A 50 percent chance of showers. Mostly cloudy, with a low around 54. Calm wind.
Saturday
Showers likely, mainly after 11am. Mostly cloudy, with a high near 64. Light north wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A 30 percent chance of showers before 11pm. Mostly cloudy, with a low around 48. North northeast wind 3 to 5 mph.
Sunday
Sunny, with a high near 65. North northeast wind 5 to 8 mph.
Sunday Night
Clear, with a low around 45.
Monday
Sunny, with a high near 69.
Monday Night
Clear, with a low around 48.
Tuesday
Sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
A chance of rain. Mostly sunny, with a high near 67.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 49.
Thursday
A chance of rain. Partly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.52°N 122.17°W (Elev. 400 ft)
8:00 am PDT Oct 3, 2025
11am PDT Oct 3, 2025-6pm PDT Oct 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