Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for the High Plains. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

light rain,mist

52°F

11°C

Humidity 96%
Wind Speed N 0 MPH
Barometer 29.83 in (1010.16 mb)
Dewpoint 51°F (11°C)
Visibility 5.00 mi
Last update 22 Apr 02:53 AM PDT
Extended Forecast for

Newcastle WA

  • Overnight

    Overnight: Rain.  Low around 48. South wind around 8 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Rain

  • Wednesday

    Wednesday: Rain before 4pm, then a slight chance of rain after 5pm.  High near 54. South southwest wind 9 to 13 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 54 °F

    Rain then
    Chance Rain

  • Wednesday Night

    Wednesday Night: A slight chance of rain between 10pm and 11pm.  Mostly cloudy, with a low around 45. South southwest wind 10 to 13 mph.  Chance of precipitation is 20%.

    Low: 45 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 58. South southwest wind 5 to 7 mph.

    High: 58 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 42. North northwest wind around 6 mph becoming light and variable  in the evening.

    Low: 42 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Overnight
Rain. Low around 48. South wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain before 4pm, then a slight chance of rain after 5pm. High near 54. South southwest wind 9 to 13 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
A slight chance of rain between 10pm and 11pm. Mostly cloudy, with a low around 45. South southwest wind 10 to 13 mph. Chance of precipitation is 20%.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 58. South southwest wind 5 to 7 mph.
Thursday Night
Mostly clear, with a low around 42. North northwest wind around 6 mph becoming light and variable in the evening.
Friday
Sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 42.
Saturday
Sunny, with a high near 64.
Saturday Night
Mostly clear, with a low around 43.
Sunday
Mostly sunny, with a high near 65.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Mostly sunny, with a high near 65.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.53°N 122.14°W (Elev. 873 ft)
1:23 am PDT Apr 22, 2026
3am PDT Apr 22, 2026-6pm PDT Apr 28, 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