Current conditions at

Renton Municipal Airport (KRNT)

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

Overcast

61°F

16°C

Humidity 77%
Wind Speed S 4 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 17 Jul 05:00 AM PDT
Extended Forecast for

Newcastle WA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 75. West southwest wind 5 to 7 mph.

    High: 75 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Increasing clouds, with a low around 58. West southwest wind around 6 mph becoming calm  in the evening.

    Low: 58 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 76. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 76 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56. North northwest wind around 8 mph becoming northeast after midnight.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 78. North northwest wind 5 to 7 mph.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 75. West southwest wind 5 to 7 mph.
Tonight
Increasing clouds, with a low around 58. West southwest wind around 6 mph becoming calm in the evening.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 76. Calm wind becoming northwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 56. North northwest wind around 8 mph becoming northeast after midnight.
Sunday
Sunny, with a high near 78. North northwest wind 5 to 7 mph.
Sunday Night
Mostly clear, with a low around 59.
Monday
Mostly sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
Partly cloudy, with a low around 65.
Wednesday
Mostly sunny, with a high near 87.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.54°N 122.17°W (Elev. 397 ft)
11:26 pm PDT Jul 16, 2026
5am PDT Jul 17, 2026-6pm PDT Jul 23, 2026
 
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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