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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Partly Cloudy

73°F

23°C

Humidity 49%
Wind Speed SW 9 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 27 Aug 05:00 PM PDT
Extended Forecast for

2 Miles SE Newcastle WA

  • Tonight

    Tonight: Increasing clouds, with a low around 56. South wind 3 to 8 mph.

    Low: 56 °F

    Increasing
    Clouds

  • Friday

    Friday: Cloudy, then gradually becoming mostly sunny, with a high near 71. Light south southwest wind.

    High: 71 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Rain likely, mainly after 4am. Cloudy, with a low around 53. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 53 °F

    Slight Chance
    Rain then
    Rain Likely

  • Saturday

    Saturday: Rain, mainly before 11am. High near 68. South wind around 6 mph becoming calm in the morning. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 68 °F

    Rain then
    Chance Rain

  • Saturday Night

    Saturday Night: A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 52. Light south wind.

    Low: 52 °F

    Chance Rain
    then Mostly
    Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 68.

    High: 68 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 56. South wind 3 to 8 mph.
Friday
Cloudy, then gradually becoming mostly sunny, with a high near 71. Light south southwest wind.
Friday Night
Rain likely, mainly after 4am. Cloudy, with a low around 53. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain, mainly before 11am. High near 68. South wind around 6 mph becoming calm in the morning. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 52. Light south wind.
Sunday
Mostly cloudy, with a high near 68.
Sunday Night
Mostly cloudy, with a low around 52.
Monday
Partly sunny, with a high near 71.
Monday Night
Mostly cloudy, with a low around 53.
Tuesday
A chance of rain, mainly after 11am. Mostly cloudy, with a high near 69.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 53.
Wednesday
Rain likely. Mostly cloudy, with a high near 65.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 52.
Thursday
A chance of rain. Mostly cloudy, with a high near 66.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Newcastle WA
 47.53°N 122.14°W (Elev. 873 ft)
Last Update:
12:56 pm PDT Aug 27, 2026
Forecast Valid:
5pm PDT Aug 27, 2026-6pm PDT Sep 3, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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