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

57°F

14°C

Humidity 86%
Wind Speed N 0 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 04 Oct 01:53 AM PDT
Extended Forecast for

3 Miles SE Newcastle WA

  • Overnight

    Overnight: A 30 percent chance of rain, mainly after 5am. Mostly cloudy, with a steady temperature around 55. Calm wind.

    Low: 55 °F

    Chance Rain

  • Saturday

    Saturday: A 50 percent chance of rain, mainly after 11am. Cloudy, then gradually becoming mostly sunny, with a high near 63. Light north wind.

    High: 63 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before 11pm. Partly cloudy, with a low around 47. Light north northeast wind.

    Low: 47 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 66. North wind 5 to 7 mph.

    High: 66 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45. North wind 5 to 7 mph becoming light and variable in the evening.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 47.

    Low: 47 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of rain, mainly after 5am. Mostly cloudy, with a steady temperature around 55. Calm wind.
Saturday
A 50 percent chance of rain, mainly after 11am. Cloudy, then gradually becoming mostly sunny, with a high near 63. Light north wind.
Saturday Night
A 20 percent chance of rain before 11pm. Partly cloudy, with a low around 47. Light north northeast wind.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 66. North wind 5 to 7 mph.
Sunday Night
Mostly clear, with a low around 45. North wind 5 to 7 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 70.
Monday Night
Clear, with a low around 47.
Tuesday
Sunny, with a high near 73.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 67.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 49.
Thursday
A chance of rain. Partly sunny, with a high near 67.
Thursday Night
A chance of rain. Partly cloudy, with a low around 49.
Friday
A chance of rain. Partly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Newcastle WA
 47.51°N 122.1°W (Elev. 1201 ft)
Last Update:
8:52 pm PDT Oct 3, 2025
Forecast Valid:
2am PDT Oct 4, 2025-6pm PDT Oct 10, 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