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 93%
Wind Speed NNE 4 MPH
Barometer 30.37 in (1028.45 mb)
Dewpoint 52°F (11°C)
Visibility 8.00 mi
Last update 15 Oct 04:05 AM PDT
Extended Forecast for

3 Miles E Newcastle WA

  • Today

    Today: Sunny, with a high near 70. East wind around 5 mph becoming calm in the morning.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 52. Southeast wind 5 to 10 mph.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 71. South southeast wind around 6 mph becoming calm in the morning.

    High: 71 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of rain after 11pm. Increasing clouds, with a low around 53. Light south southwest wind becoming south 11 to 16 mph in the evening. Winds could gust as high as 21 mph.

    Low: 53 °F

    Chance Rain

  • Saturday

    Saturday: Rain likely, mainly before 11am. Mostly cloudy, with a high near 57. South wind 11 to 16 mph becoming light west southwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Rain Likely
    then Chance
    Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 70. East wind around 5 mph becoming calm in the morning.
Tonight
Mostly clear, with a low around 52. Southeast wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 71. South southeast wind around 6 mph becoming calm in the morning.
Friday Night
A 40 percent chance of rain after 11pm. Increasing clouds, with a low around 53. Light south southwest wind becoming south 11 to 16 mph in the evening. Winds could gust as high as 21 mph.
Saturday
Rain likely, mainly before 11am. Mostly cloudy, with a high near 57. South wind 11 to 16 mph becoming light west southwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Partly sunny, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 44.
Monday
Mostly cloudy, with a high near 53.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
Partly sunny, with a high near 55.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Mostly sunny, with a high near 57.
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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:
2:23 am PDT Oct 15, 2026
Forecast Valid:
4am PDT Oct 15, 2026-6pm PDT Oct 21, 2026
 
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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