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

Heavy Rain and Flooding Concerns in Hawaii; Severe Weather in the Plains

A storm system is expected to bring strong winds, widespread heavy rainfall, and flooding concerns to the Hawaiian Islands through the weekend. Strong to severe thunderstorms are forecast from the Southern Plains to the Mid-Missouri Valley Thursday afternoon and evening. Large hail and strong winds are the primary threats. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Clear

52°F

11°C

Humidity 66%
Wind Speed N 3 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 08 Apr 10:35 PM PDT
Extended Forecast for

Newcastle WA

  • Tonight

    Tonight: Clear, with a low around 38. North northeast wind 3 to 5 mph.

    Low: 38 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 64. North wind 3 to 7 mph.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. North wind 5 to 7 mph becoming light and variable after midnight.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 68. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 68 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 48. South southwest wind around 6 mph.

    Low: 48 °F

    Chance Rain

  • Saturday

    Saturday: Rain likely before 11am, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 56. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 56 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 50.

    High: 50 °F

    Rain Likely

  • Sunday Night

    Sunday Night: A chance of rain before 11pm. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Chance Rain
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Clear, with a low around 38. North northeast wind 3 to 5 mph.
Thursday
Sunny, with a high near 64. North wind 3 to 7 mph.
Thursday Night
Mostly clear, with a low around 45. North wind 5 to 7 mph becoming light and variable after midnight.
Friday
Mostly sunny, with a high near 68. Calm wind becoming south southwest around 5 mph in the afternoon.
Friday Night
A 40 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 48. South southwest wind around 6 mph.
Saturday
Rain likely before 11am, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 56. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 45.
Sunday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 50.
Sunday Night
A chance of rain before 11pm. Mostly cloudy, with a low around 44.
Monday
A slight chance of rain. Mostly cloudy, with a high near 51.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
A chance of rain. Mostly cloudy, with a high near 53.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 43.
Wednesday
A chance of rain. Mostly cloudy, with a high near 51.
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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:
11:26 am PDT Apr 8, 2026
Forecast Valid:
10pm PDT Apr 8, 2026-6pm PDT Apr 15, 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