Current conditions at

Renton Municipal Airport (KRNT)

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

Rain

43°F

6°C

Humidity 81%
Wind Speed N 8 MPH
Barometer 29.55 in (1000.68 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 24 Dec 01:00 AM PST
Extended Forecast for

Newcastle WA

Wind Advisory December 24, 04:00am until December 24, 07:00pm
Click here for hazard details and duration
Wind Advisory
  • Overnight

    Overnight: Rain, mainly after 4am.  Low around 38. North northeast wind around 8 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Rain

  • Wednesday

    Wednesday: Rain.  High near 48. Breezy, with an east northeast wind 5 to 10 mph becoming south 18 to 23 mph in the afternoon. Winds could gust as high as 55 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 48 °F

    Rain and
    Breezy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before 10pm.  Increasing clouds, with a low around 36. South southeast wind 7 to 9 mph becoming northeast after midnight.

    Low: 36 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Christmas Day

    Christmas Day: Rain likely after 10am.  Mostly cloudy, with a high near 44. North wind around 6 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 44 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain.  Low around 38. Southeast wind 3 to 5 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Rain

  • Friday

    Friday: Rain likely, mainly before 4pm.  Mostly cloudy, with a high near 43. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 43 °F

    Rain Likely

  • Friday Night

    Friday Night: A 40 percent chance of rain before 10pm.  Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance Rain
    then Mostly
    Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 42.

    High: 42 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Rain, mainly after 4am. Low around 38. North northeast wind around 8 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain. High near 48. Breezy, with an east northeast wind 5 to 10 mph becoming south 18 to 23 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 20 percent chance of rain before 10pm. Increasing clouds, with a low around 36. South southeast wind 7 to 9 mph becoming northeast after midnight.
Christmas Day
Rain likely after 10am. Mostly cloudy, with a high near 44. North wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain. Low around 38. Southeast wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain likely, mainly before 4pm. Mostly cloudy, with a high near 43. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 40 percent chance of rain before 10pm. Mostly cloudy, with a low around 35.
Saturday
Mostly cloudy, with a high near 42.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
Mostly cloudy, with a high near 44.
Sunday Night
Mostly cloudy, with a low around 35.
Monday
A slight chance of rain. Mostly cloudy, with a high near 47.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 37.
Tuesday
A chance of rain. Mostly cloudy, with a high near 48.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.53°N 122.14°W (Elev. 873 ft)
8:21 pm PST Dec 23, 2025
1am PST Dec 24, 2025-6pm PST Dec 30, 2025
 
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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