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Sinlaku Continues to Impact the Marianas; Severe Weather for the Central Plains and Northeast; Record Warmth for mid-Atlantic to Southeast

Sinlaku continues to affect the Marianas as it moves north through Friday. Meanwhile, severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley today and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Partly Cloudy

39°F

4°C

Humidity 88%
Wind Speed SSE 4 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 16 Apr 07:53 AM PDT
Extended Forecast for

3 Miles E Newcastle WA

  • Today

    Today: Areas of frost before 9am. Otherwise, sunny, with a high near 52. South wind around 6 mph.

    High: 52 °F

    Areas Frost
    then Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. South southeast wind 6 to 8 mph.

    Low: 38 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 54. South southeast wind around 5 mph becoming light and variable.

    High: 54 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 40. North northwest wind around 6 mph becoming light and variable in the evening.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 62. East wind around 5 mph becoming calm in the morning.

    High: 62 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A 30 percent chance of rain. Mostly cloudy, with a high near 63.

    High: 63 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A slight chance of rain before 11pm. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Monday

    Monday: A slight chance of rain. Partly sunny, with a high near 64.

    High: 64 °F

    Slight Chance
    Rain

Detailed Forecast

Today
Areas of frost before 9am. Otherwise, sunny, with a high near 52. South wind around 6 mph.
Tonight
Mostly cloudy, with a low around 38. South southeast wind 6 to 8 mph.
Friday
Mostly sunny, with a high near 54. South southeast wind around 5 mph becoming light and variable.
Friday Night
Mostly cloudy, with a low around 40. North northwest wind around 6 mph becoming light and variable in the evening.
Saturday
Mostly cloudy, with a high near 62. East wind around 5 mph becoming calm in the morning.
Saturday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 46.
Sunday
A 30 percent chance of rain. Mostly cloudy, with a high near 63.
Sunday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 47.
Monday
A slight chance of rain. Partly sunny, with a high near 64.
Monday Night
A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 48.
Tuesday
A chance of rain. Partly sunny, with a high near 58.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 47.
Wednesday
A chance of rain. Mostly cloudy, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Newcastle WA
 47.53°N 122.11°W (Elev. 1237 ft)
Last Update:
1:20 am PDT Apr 16, 2026
Forecast Valid:
8am PDT Apr 16, 2026-6pm PDT Apr 22, 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