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Current conditions at

Renton Municipal Airport (KRNT)

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

Clear

36°F

2°C

Humidity 93%
Wind Speed S 3 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 18 Mar 07:35 AM PDT
Extended Forecast for

Newcastle WA

  • Today

    Today: A 30 percent chance of showers, mainly between 2pm and 5pm. Partly sunny, with a high near 46. South southwest wind around 6 mph.

    High: 46 °F

    Mostly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: A chance of showers before 9pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 39. Southwest wind 5 to 9 mph becoming southeast in the evening. Chance of precipitation is 30%.

    Low: 39 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 51. Southeast wind 6 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain. Low around 41. South wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Rain

  • Thursday

    Thursday: Showers before 11am, then rain after 11am. High near 48. South southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 48 °F

    Showers

  • Thursday Night

    Thursday Night: Rain. Low around 43. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Rain

  • Friday

    Friday: Rain. High near 47. Chance of precipitation is 100%.

    High: 47 °F

    Rain

  • Friday Night

    Friday Night: Showers. Mostly cloudy, with a low around 39.

    Low: 39 °F

    Showers

  • Saturday

    Saturday: Rain likely. Mostly cloudy, with a high near 50.

    High: 50 °F

    Rain Likely

Detailed Forecast

Today
A 30 percent chance of showers, mainly between 2pm and 5pm. Partly sunny, with a high near 46. South southwest wind around 6 mph.
Tonight
A chance of showers before 9pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 39. Southwest wind 5 to 9 mph becoming southeast in the evening. Chance of precipitation is 30%.
Wednesday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 51. Southeast wind 6 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain. Low around 41. South wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers before 11am, then rain after 11am. High near 48. South southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain. Low around 43. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain. High near 47. Chance of precipitation is 100%.
Friday Night
Showers. Mostly cloudy, with a low around 39.
Saturday
Rain likely. Mostly cloudy, with a high near 50.
Saturday Night
Rain. Mostly cloudy, with a low around 42.
Sunday
Rain. Cloudy, with a high near 50.
Sunday Night
Rain. Cloudy, with a low around 47.
Monday
Rain likely. Mostly cloudy, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.53°N 122.14°W (Elev. 873 ft)
Last Update:
3:40 am PDT Mar 18, 2025
Forecast Valid:
7am PDT Mar 18, 2025-6pm PDT Mar 24, 2025
 
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