Back-to-Back Storms for the Center of the Nation

These storm systems will bring late season snow, sleet and ice for portions of the northern Plains, upper Midwest and Great Lakes region. Meanwhile, where temperatures are warmer, severe thunderstorms are expected for areas of the Mississippi Valley into the southern Plains. Furthermore, combination of windy and dry conditions will raise fire weather concerns for the southern High 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 75%
Wind Speed S 4 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 02 Apr 08:35 AM PDT
Extended Forecast for

Newcastle WA

  • Today

    Today: Rain likely, mainly before 11am.  Mostly cloudy, with a high near 52. South southwest wind around 8 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Rain Likely
    then Chance
    Rain

  • Tonight

    Tonight: A 20 percent chance of rain before 8pm.  Mostly cloudy, with a low around 42. South wind 7 to 9 mph.

    Low: 42 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 57. South wind around 6 mph.

    High: 57 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39. Light and variable wind.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 61. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 61 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

Today
Rain likely, mainly before 11am. Mostly cloudy, with a high near 52. South southwest wind around 8 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A 20 percent chance of rain before 8pm. Mostly cloudy, with a low around 42. South wind 7 to 9 mph.
Friday
Partly sunny, with a high near 57. South wind around 6 mph.
Friday Night
Partly cloudy, with a low around 39. Light and variable wind.
Saturday
Mostly sunny, with a high near 61. Calm wind becoming north 5 to 7 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Partly sunny, with a high near 65.
Sunday Night
Mostly cloudy, with a low around 46.
Monday
Mostly sunny, with a high near 68.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Partly sunny, with a high near 59.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.54°N 122.17°W (Elev. 397 ft)
11:27 pm PDT Apr 1, 2026
8am PDT Apr 2, 2026-6pm PDT Apr 8, 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