National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy to Excessive Rainfall This Week from the Southwest into Central U.S.; Severe Weather in the Southern Plains

Pacific tropical moisture wrapping into a storm will continue a multi-day heavy rainfall event this week that will impact multiple areas in the Plains and Intermountain West. Isolated severe thunderstorm wind gusts and possibly a tornado or two could occur tonight from southern and eastern New Mexico into west Texas. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Clear

54°F

12°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 30 Sep 04:20 AM PDT
Extended Forecast for

Newcastle WA

  • Today

    Today: Mostly sunny, with a high near 61. Calm wind becoming north around 5 mph in the afternoon.

    High: 61 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 48. Light north northeast wind.

    Low: 48 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 63. Calm wind.

    High: 63 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 66. Light and variable wind.

    High: 66 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 61. Calm wind becoming north around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 48. Light north northeast wind.
Thursday
Partly sunny, with a high near 63. Calm wind.
Thursday Night
Mostly cloudy, with a low around 51. Calm wind.
Friday
Mostly sunny, with a high near 66. Light and variable wind.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 71.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Partly sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.53°N 122.14°W (Elev. 873 ft)
Last Update:
1:25 am PDT Sep 30, 2026
Forecast Valid:
4am PDT Sep 30, 2026-6pm PDT Oct 6, 2026
 
Forecast Discussion
 
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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