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

Severe Thunderstorms and Heavy Rainfall from the Lower Mississippi Valley to the Mid-Atlantic; Active Pattern Continues in Hawaii

Scattered severe thunderstorms are expected today from the ArkLaTex and Lower Mississippi Valley through the Ohio Valley and Mid-Atlantic. Thunderstorms may produce heavy to excessive rain that could pose a flooding threat today from east Texas into New York. A powerful kona storm will continue to impact Hawaii through Saturday, bringing heavy rainfall, strong winds, and severe thunderstorms. Read More >

Hazardous Weather Conditions

Current conditions at

Renton Municipal Airport (KRNT)

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

Rain

43°F

6°C

Humidity 86%
Wind Speed SSE 4 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 11 Mar 07:30 AM PDT
Extended Forecast for

Newcastle WA

Wind Advisory March 11, 03:00pm until March 12, 06:00am
Click here for hazard details and duration
Wind Advisory

  • Today

    Today: Rain. High near 51. South southeast wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 51 °F

    Rain

  • Tonight

    Tonight: Showers. Low around 40. Breezy, with a southwest wind 20 to 24 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Showers and
    Breezy

  • Thursday

    Thursday: Rain. High near 44. South southwest wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 44 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Low around 36. South wind 5 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 36 °F

    Rain

  • Friday

    Friday: Rain. High near 42. Light south southwest wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 42 °F

    Rain

  • Friday Night

    Friday Night: Rain before 5am, then rain likely, possibly mixed with snow showers. Low around 35. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 35 °F

    Rain then
    Rain/Snow
    Likely

  • Saturday

    Saturday: Rain and snow showers likely before 2pm, then a chance of rain showers. Partly sunny, with a high near 46. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 46 °F

    Rain/Snow
    Likely

  • Saturday Night

    Saturday Night: A slight chance of rain showers before 11pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of rain and snow showers before 8am, then rain likely. Cloudy, with a high near 46.

    High: 46 °F

    Rain/Snow
    Likely then
    Rain Likely

Detailed Forecast

Today
Rain. High near 51. South southeast wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Showers. Low around 40. Breezy, with a southwest wind 20 to 24 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain. High near 44. South southwest wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain. Low around 36. South wind 5 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
Rain. High near 42. Light south southwest wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain before 5am, then rain likely, possibly mixed with snow showers. Low around 35. Chance of precipitation is 90%. Little or no snow accumulation expected.
Saturday
Rain and snow showers likely before 2pm, then a chance of rain showers. Partly sunny, with a high near 46. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday Night
A slight chance of rain showers before 11pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 34.
Sunday
A chance of rain and snow showers before 8am, then rain likely. Cloudy, with a high near 46.
Sunday Night
Rain. Cloudy, with a low around 41.
Monday
Rain likely. Mostly cloudy, with a high near 56.
Monday Night
Rain likely. Mostly cloudy, with a low around 45.
Tuesday
Rain likely. Mostly cloudy, with a high near 61.
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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:
2:26 am PDT Mar 11, 2026
Forecast Valid:
7am PDT Mar 11, 2026-6pm PDT Mar 17, 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