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

Extreme Fire Weather Concerns; Severe Thunderstorms from the Plains to Mississippi Valley

Extremely critical fire weather concerns for portions of the southern High Plans as strong wind and very dry conditions could result in rapid spread of any fires. Meanwhile, severe thunderstorms are expected once again across areas of the Central and Southern Plains, then spreading in the Mississippi Valley regions on Monday. Damaging winds, very large hail and strong tornadoes are possible. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Partly Cloudy

64°F

18°C

Humidity 31%
Wind Speed N 6 MPH
Barometer 29.8 in (1009.14 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 26 Apr 05:00 PM PDT
Extended Forecast for

Newcastle WA

  • Tonight

    Tonight: Increasing clouds, with a low around 46. Calm wind becoming south around 6 mph after midnight.

    Low: 46 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 62. Southwest wind 7 to 9 mph.

    High: 62 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 49. South wind 6 to 9 mph.

    Low: 49 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 60. South southwest wind around 7 mph.

    High: 60 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 46. West southwest wind around 5 mph becoming calm in the evening.

    Low: 46 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 74.

    High: 74 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 46. Calm wind becoming south around 6 mph after midnight.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 62. Southwest wind 7 to 9 mph.
Monday Night
Mostly cloudy, with a low around 49. South wind 6 to 9 mph.
Tuesday
Mostly cloudy, with a high near 60. South southwest wind around 7 mph.
Tuesday Night
Partly cloudy, with a low around 46. West southwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Partly sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 69.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Partly sunny, with a high near 69.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.56°N 122.18°W (Elev. 207 ft)
Last Update:
11:26 am PDT Apr 26, 2026
Forecast Valid:
5pm PDT Apr 26, 2026-6pm PDT May 3, 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