


Current conditions at
Renton Municipal Airport (KRNT)
Lat: 47.49509°NLon: 122.21437°WElev: 23.0ft.
Overcast
61°F
16°C
Humidity | 80% |
Wind Speed | SSW 4 MPH |
Barometer | 30.08 in (1018.63 mb) |
Dewpoint | 55°F (13°C) |
Visibility | 10.00 mi |
Last update | 12 Sep 06:53 AM PDT |
Extended Forecast for
Newcastle WA
Today
High: 72 °F
Decreasing
CloudsTonight
Low: 56 °F
Partly Cloudy
Saturday
High: 75 °F
Partly Sunny
Saturday Night
Low: 59 °F
Slight Chance
RainSunday
High: 67 °F
Showers
LikelySunday Night
Low: 55 °F
Chance
ShowersMonday
High: 68 °F
Partly Sunny
Monday Night
Low: 53 °F
Mostly Clear
Tuesday
High: 78 °F
Sunny
Detailed Forecast
Today
Cloudy, then gradually becoming mostly sunny, with a high near 72. Light and variable wind.
Tonight
Partly cloudy, with a low around 56. Calm wind.
Saturday
Partly sunny, with a high near 75. Light and variable wind.
Saturday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 59. Calm wind becoming south around 6 mph after midnight.
Sunday
Rain likely before 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 67. Southwest wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms before 8pm, then a chance of rain after 8pm. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.
Monday
Partly sunny, with a high near 68.
Monday Night
Mostly clear, with a low around 53.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Mostly sunny, with a high near 75.
Wednesday Night
A chance of rain. Partly cloudy, with a low around 55.
Thursday
A slight chance of rain. Partly sunny, with a high near 69.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Newcastle WA
47.52°N 122.17°W (Elev. 400 ft)
47.52°N 122.17°W (Elev. 400 ft)
2:32 am PDT Sep 12, 2025
7am PDT Sep 12, 2025-6pm PDT Sep 18, 2025