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

Heavy Snow in the Sierra Nevada; Heavy Rainfall in Texas Sunday

Heavy snow is expected in the Sierra Nevada mountain ranges into Saturday causing hazardous travel conditions. Winter Storm Warnings have been issued. Thunderstorms and moderate to heavy rainfall are expected across portions of eastern Texas into Louisiana on Sunday. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Mostly Cloudy

48°F

9°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.51 in (999.32 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 14 Nov 01:53 AM PST
Extended Forecast for

Newcastle WA

  • Overnight

    Overnight: A slight chance of rain between 3am and 4am. Mostly cloudy, with a steady temperature around 51. South wind around 9 mph. Chance of precipitation is 20%.

    Low: 51 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A 30 percent chance of rain, mainly before 3pm. Partly sunny, with a high near 56. South southeast wind around 7 mph.

    High: 56 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain. Steady temperature around 53. East southeast wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 53 °F

    Rain then
    Rain Likely

  • Sunday

    Sunday: Rain. High near 54. South southwest wind around 9 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 4am. Mostly cloudy, with a low around 43. South southeast wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Rain Likely

  • Monday

    Monday: Rain, mainly before 4pm. High near 50. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F

    Rain

  • Monday Night

    Monday Night: A 40 percent chance of rain before 10pm. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain after 10pm. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Slight Chance
    Rain

Detailed Forecast

Overnight
A slight chance of rain between 3am and 4am. Mostly cloudy, with a steady temperature around 51. South wind around 9 mph. Chance of precipitation is 20%.
Saturday
A 30 percent chance of rain, mainly before 3pm. Partly sunny, with a high near 56. South southeast wind around 7 mph.
Saturday Night
Rain. Steady temperature around 53. East southeast wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain. High near 54. South southwest wind around 9 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 43. South southeast wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain, mainly before 4pm. High near 50. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A 40 percent chance of rain before 10pm. Mostly cloudy, with a low around 41.
Tuesday
Mostly sunny, with a high near 51.
Tuesday Night
A slight chance of rain after 10pm. Mostly cloudy, with a low around 41.
Wednesday
A chance of rain. Mostly cloudy, with a high near 49.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 39.
Thursday
Mostly sunny, with a high near 48.
Thursday Night
Partly cloudy, with a low around 36.
Friday
Mostly sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.52°N 122.17°W (Elev. 400 ft)
Last Update:
12:38 am PST Nov 14, 2026
Forecast Valid:
2am PST Nov 14, 2026-6pm PST Nov 20, 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