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.

Clear

59°F

15°C

Humidity 82%
Wind Speed NNE 4 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 18 Sep 05:20 AM PDT
Extended Forecast for

3 Miles E Newcastle WA

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 69. North wind 3 to 7 mph.

    High: 69 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 51. North northeast wind 3 to 6 mph.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 72. North northwest wind 3 to 5 mph.

    High: 72 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 52. North northwest wind around 5 mph becoming calm.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 71. Southwest wind around 7 mph.

    High: 71 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Rain, mainly after 11pm. Low around 55. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Rain

  • Sunday

    Sunday: Rain likely, mainly before 11am. Partly sunny, with a high near 66. Chance of precipitation is 70%.

    High: 66 °F

    Rain Likely
    then Chance
    Rain

  • Sunday Night

    Sunday Night: A slight chance of rain before 11pm. Partly cloudy, with a low around 50.

    Low: 50 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 69. North wind 3 to 7 mph.
Tonight
Mostly clear, with a low around 51. North northeast wind 3 to 6 mph.
Friday
Sunny, with a high near 72. North northwest wind 3 to 5 mph.
Friday Night
Mostly clear, with a low around 52. North northwest wind around 5 mph becoming calm.
Saturday
Mostly sunny, with a high near 71. Southwest wind around 7 mph.
Saturday Night
Rain, mainly after 11pm. Low around 55. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain likely, mainly before 11am. Partly sunny, with a high near 66. Chance of precipitation is 70%.
Sunday Night
A slight chance of rain before 11pm. Partly cloudy, with a low around 50.
Monday
Mostly sunny, with a high near 69.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 54.
Wednesday
A chance of rain. Partly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Newcastle WA
 47.53°N 122.11°W (Elev. 1237 ft)
Last Update:
2:25 am PDT Sep 18, 2025
Forecast Valid:
5am PDT Sep 18, 2025-6pm PDT Sep 24, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation