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

Severe Weather for Northeast Southeastward into the Southern Plains; Flooding in the Upper Great Lakes

Severe thunderstorms are expected from the Northeast to Texas through the night 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 and the mid-Atlantic. There is late-season snow over the Northern/Central Rockies and the Northern Plains. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Overcast

45°F

7°C

Humidity 73%
Wind Speed ESE 4 MPH
Barometer 30.32 in (1026.75 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 17 Apr 03:02 AM PDT
Extended Forecast for

Newcastle WA

  • Overnight

    Overnight: Partly cloudy, with a low around 39. Light southeast wind.

    Low: 39 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 57. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 57 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 42. Light and variable wind.

    Low: 42 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 67. Calm wind.

    High: 67 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 50. Light and variable wind.

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 70.

    High: 70 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Monday Night

    Monday Night: A slight chance of rain. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Slight Chance
    Rain

Detailed Forecast

Overnight
Partly cloudy, with a low around 39. Light southeast wind.
Friday
Mostly sunny, with a high near 57. Calm wind becoming north northwest around 5 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 42. Light and variable wind.
Saturday
Partly sunny, with a high near 67. Calm wind.
Saturday Night
Mostly cloudy, with a low around 50. Light and variable wind.
Sunday
Mostly cloudy, with a high near 70.
Sunday Night
Mostly cloudy, with a low around 49.
Monday
Partly sunny, with a high near 71.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 50.
Tuesday
A chance of rain. Mostly cloudy, with a high near 63.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 49.
Wednesday
A chance of rain. Mostly cloudy, with a high near 59.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 44.
Thursday
Partly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.52°N 122.17°W (Elev. 400 ft)
Last Update:
1:31 am PDT Apr 17, 2026
Forecast Valid:
3am PDT Apr 17, 2026-6pm PDT Apr 23, 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