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

54°F

12°C

Humidity 76%
Wind Speed SE 4 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 08 Oct 02:00 AM PDT
Extended Forecast for

3 Miles SE Newcastle WA

  • Overnight

    Overnight: A 10 percent chance of rain after 5am. Mostly cloudy, with a low around 48. East northeast wind 3 to 5 mph.

    Low: 48 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: A slight chance of rain before 11am, then a slight chance of rain after 3pm. Partly sunny, with a high near 60. Southwest wind 5 to 7 mph. Chance of precipitation is 20%.

    High: 60 °F

    Slight Chance
    Rain

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 45. Light and variable wind.

    Low: 45 °F

    Chance Rain

  • Thursday

    Thursday: A 40 percent chance of rain, mainly before 11am. Partly sunny, with a high near 62. Calm wind becoming north around 5 mph in the afternoon.

    High: 62 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 48. North northeast wind 3 to 5 mph.

    Low: 48 °F

    Chance Rain

  • Friday

    Friday: Rain. High near 59. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 59 °F

    Rain

  • Friday Night

    Friday Night: Rain. Low around 49. Chance of precipitation is 80%.

    Low: 49 °F

    Rain

  • Saturday

    Saturday: Rain. Mostly cloudy, with a high near 58.

    High: 58 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Rain Likely

Detailed Forecast

Overnight
A 10 percent chance of rain after 5am. Mostly cloudy, with a low around 48. East northeast wind 3 to 5 mph.
Wednesday
A slight chance of rain before 11am, then a slight chance of rain after 3pm. Partly sunny, with a high near 60. Southwest wind 5 to 7 mph. Chance of precipitation is 20%.
Wednesday Night
A 40 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 45. Light and variable wind.
Thursday
A 40 percent chance of rain, mainly before 11am. Partly sunny, with a high near 62. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 48. North northeast wind 3 to 5 mph.
Friday
Rain. High near 59. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Rain. Low around 49. Chance of precipitation is 80%.
Saturday
Rain. Mostly cloudy, with a high near 58.
Saturday Night
Rain likely. Mostly cloudy, with a low around 45.
Sunday
A chance of rain. Mostly cloudy, with a high near 56.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 43.
Columbus Day
A chance of rain. Mostly sunny, with a high near 58.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 43.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 58.
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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:
8:10 pm PDT Oct 7, 2025
Forecast Valid:
2am PDT Oct 8, 2025-6pm PDT Oct 14, 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