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

Renton Municipal Airport (KRNT)

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

Overcast

54°F

12°C

Humidity 66%
Wind Speed S 5 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 21 Nov 04:15 PM PST
Extended Forecast for

3 Miles ESE Newcastle WA

  • This Afternoon

    This Afternoon: A 20 percent chance of rain. Mostly cloudy, with a high near 49. South wind around 5 mph.

    High: 49 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Mostly cloudy, with a low around 46. South wind around 7 mph.

    Low: 46 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of rain before 10am, then a chance of rain after 11am. Mostly cloudy, with a high near 51. South wind around 6 mph. Chance of precipitation is 30%.

    High: 51 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly after 10pm. Cloudy, with a low around 45. South wind around 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Rain Likely

  • Sunday

    Sunday: Rain. High near 47. Southwest wind 7 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 47 °F

    Rain

  • Sunday Night

    Sunday Night: Rain likely. Mostly cloudy, with a low around 38. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Rain Likely

  • Monday

    Monday: Rain likely, mainly before 10am. Partly sunny, with a high near 44. Chance of precipitation is 60%.

    High: 44 °F

    Rain Likely
    then Chance
    Rain

  • Monday Night

    Monday Night: A slight chance of rain before 10pm, then a slight chance of rain after 4am. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Slight Chance
    Rain

  • Tuesday

    Tuesday: A chance of rain, mainly after 10am. Mostly cloudy, with a high near 43.

    High: 43 °F

    Chance Rain

Detailed Forecast

This Afternoon
A 20 percent chance of rain. Mostly cloudy, with a high near 49. South wind around 5 mph.
Tonight
Mostly cloudy, with a low around 46. South wind around 7 mph.
Saturday
A slight chance of rain before 10am, then a chance of rain after 11am. Mostly cloudy, with a high near 51. South wind around 6 mph. Chance of precipitation is 30%.
Saturday Night
Rain likely, mainly after 10pm. Cloudy, with a low around 45. South wind around 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain. High near 47. Southwest wind 7 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Rain likely. Mostly cloudy, with a low around 38. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain likely, mainly before 10am. Partly sunny, with a high near 44. Chance of precipitation is 60%.
Monday Night
A slight chance of rain before 10pm, then a slight chance of rain after 4am. Mostly cloudy, with a low around 36.
Tuesday
A chance of rain, mainly after 10am. Mostly cloudy, with a high near 43.
Tuesday Night
Rain likely. Cloudy, with a low around 40.
Wednesday
Rain likely. Cloudy, with a high near 46.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 44.
Thanksgiving Day
A chance of rain. Mostly cloudy, with a high near 48.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 42.
Friday
Rain likely. Mostly cloudy, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Newcastle WA
 47.53°N 122.11°W (Elev. 1237 ft)
Last Update:
1:25 pm PST Nov 21, 2025
Forecast Valid:
4pm PST Nov 21, 2025-6pm PST Nov 28, 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