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

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.

Mostly Cloudy

61°F

16°C

Humidity 63%
Wind Speed SSW 8 MPH
Barometer 29.81 in (1009.48 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 21 Apr 04:05 PM PDT
Extended Forecast for

2 Miles E Newcastle WA

  • This Afternoon

    This Afternoon: A 50 percent chance of rain. Mostly cloudy, with a high near 56. Southwest wind around 8 mph.

    High: 56 °F

    Chance Rain

  • Tonight

    Tonight: Rain. Low around 46. Southwest wind 9 to 13 mph becoming east in the evening. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 46 °F

    Rain Likely
    then Rain

  • Wednesday

    Wednesday: Rain, mainly before noon. High near 50. South southwest wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 50 °F

    Rain then
    Chance Rain

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 43. South southwest wind 13 to 16 mph, with gusts as high as 21 mph.

    Low: 43 °F

    Chance Rain

  • Thursday

    Thursday: Partly sunny, with a high near 56. South southwest wind around 9 mph becoming west northwest in the afternoon.

    High: 56 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of rain. Mostly cloudy, with a high near 56. Southwest wind around 8 mph.
Tonight
Rain. Low around 46. Southwest wind 9 to 13 mph becoming east in the evening. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday
Rain, mainly before noon. High near 50. South southwest wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
A 30 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 43. South southwest wind 13 to 16 mph, with gusts as high as 21 mph.
Thursday
Partly sunny, with a high near 56. South southwest wind around 9 mph becoming west northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 40.
Friday
Sunny, with a high near 61.
Friday Night
Mostly clear, with a low around 41.
Saturday
Sunny, with a high near 62.
Saturday Night
Mostly clear, with a low around 42.
Sunday
Sunny, with a high near 63.
Sunday Night
Partly cloudy, with a low around 44.
Monday
A slight chance of rain. Mostly sunny, with a high near 61.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 63.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Newcastle WA
 47.53°N 122.11°W (Elev. 1237 ft)
Last Update:
2:15 pm PDT Apr 21, 2026
Forecast Valid:
4pm PDT Apr 21, 2026-6pm PDT Apr 28, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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