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

Critical Fire Weather in the Plains; Unseasonably Warm in the Southwest and Southern U.S.

Unseasonably warm temperatures continue through the weekend across the Southwest and southern U.S., with more than 100 record or near record maximum temperatures forecast through the rest of the week and over the weekend. Elevated to critical fire weather conditions will persist across the Plains and Southeast U.S. this weekend. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Partly Cloudy

50°F

10°C

Humidity 71%
Wind Speed NNW 6 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 28 Mar 11:09 AM PDT
Extended Forecast for

Newcastle WA

  • Today

    Today: A 10 percent chance of rain after 5pm. Partly sunny, with a high near 54. Light and variable wind becoming west southwest around 6 mph in the afternoon.

    High: 54 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: A 20 percent chance of rain between 3am and 5am. Mostly cloudy, with a low around 37. North wind around 6 mph becoming calm in the evening.

    Low: 37 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A chance of rain before 11am, then rain, possibly mixed with snow. High near 46. South southeast wind 5 to 8 mph becoming west northwest in the afternoon. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 46 °F

    Chance
    Rain/Snow
    then
    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow likely before 11pm, then a slight chance of snow. Mostly cloudy, with a low around 32. West northwest wind 5 to 8 mph becoming northeast in the evening. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 32 °F

    Rain/Snow
    Likely then
    Slight Chance
    Snow

  • Monday

    Monday: Sunny, with a high near 48. Light and variable wind becoming north around 5 mph in the afternoon.

    High: 48 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 51.

    High: 51 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A chance of rain after 11pm. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain. Cloudy, with a high near 48.

    High: 48 °F

    Rain

Detailed Forecast

Today
A 10 percent chance of rain after 5pm. Partly sunny, with a high near 54. Light and variable wind becoming west southwest around 6 mph in the afternoon.
Tonight
A 20 percent chance of rain between 3am and 5am. Mostly cloudy, with a low around 37. North wind around 6 mph becoming calm in the evening.
Sunday
A chance of rain before 11am, then rain, possibly mixed with snow. High near 46. South southeast wind 5 to 8 mph becoming west northwest in the afternoon. Chance of precipitation is 80%. Little or no snow accumulation expected.
Sunday Night
Rain and snow likely before 11pm, then a slight chance of snow. Mostly cloudy, with a low around 32. West northwest wind 5 to 8 mph becoming northeast in the evening. Chance of precipitation is 70%. Little or no snow accumulation expected.
Monday
Sunny, with a high near 48. Light and variable wind becoming north around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 32.
Tuesday
Mostly cloudy, with a high near 51.
Tuesday Night
A chance of rain after 11pm. Mostly cloudy, with a low around 40.
Wednesday
Rain. Cloudy, with a high near 48.
Wednesday Night
Rain. Mostly cloudy, with a low around 38.
Thursday
Rain. Mostly cloudy, with a high near 50.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 39.
Friday
A slight chance of rain. Partly sunny, with a high near 52.
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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:
9:55 am PDT Mar 28, 2026
Forecast Valid:
11am PDT Mar 28, 2026-6pm PDT Apr 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