Showers and Thunderstorms for the East; Cooler Temperatures Return Sunday into Early Week

Showers and thunderstorms will accompany a cold front that will move across the eastern third of the country through Sunday. In the wake of this front, cooler temperatures will follow for most areas east of the Rockies. A wet pattern is expected to unfold across most of Florida this week with a persistent onshore flow and increase rip currents. For Hawaii, a return toward more rain the week ahead. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Clear

48°F

9°C

Humidity 81%
Wind Speed N 10 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 05 Apr 03:00 AM PDT
Extended Forecast for

Newcastle WA

  • Overnight

    Overnight: Mostly cloudy, with a low around 44. Northeast wind around 5 mph.

    Low: 44 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 67. North wind around 7 mph.

    High: 67 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 49. North wind around 5 mph becoming calm  in the evening.

    Low: 49 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 68. South wind 3 to 7 mph.

    High: 68 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 42. North northwest wind 6 to 9 mph.

    Low: 42 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 44. Northeast wind around 5 mph.
Sunday
Partly sunny, with a high near 67. North wind around 7 mph.
Sunday Night
Mostly cloudy, with a low around 49. North wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 68. South wind 3 to 7 mph.
Monday Night
Partly cloudy, with a low around 42. North northwest wind 6 to 9 mph.
Tuesday
Mostly sunny, with a high near 54.
Tuesday Night
Mostly clear, with a low around 38.
Wednesday
Sunny, with a high near 57.
Wednesday Night
Clear, with a low around 38.
Thursday
Sunny, with a high near 61.
Thursday Night
Mostly clear, with a low around 40.
Friday
Mostly sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 43.
Saturday
A slight chance of rain. Mostly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.55°N 122.14°W (Elev. 538 ft)
11:26 pm PDT Apr 4, 2026
3am PDT Apr 5, 2026-6pm PDT Apr 11, 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