Heat and Fire Weather Concerns West; Heavy Rain and Thunderstorms from Plains to mid-Atlantic

Thunderstorms and locally heavy rainfall is expected from the Central Plains to the Ohio Valley, mid-Atlantic and across the Southeast. Severe weather from the Upper Midwest to Central Plains increases on Friday. Major to Extreme HeatRisk continues across the Southern Plains to the lower Mississippi Valley late this week. Fire weather concerns for the northern Rockies and northern Plains today. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Mostly Cloudy

72°F

22°C

Humidity 53%
Wind Speed NW 5 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 10 Sep 05:35 PM PDT
Extended Forecast for

4 Miles SSE Newcastle WA

  • Tonight

    Tonight: Mostly cloudy, with a low around 53. Calm wind becoming south around 5 mph after midnight.

    Low: 53 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 67. South southeast wind around 5 mph becoming calm  in the morning.

    High: 67 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Cloudy

  • Saturday

    Saturday: A chance of rain between 11am and 5pm, then showers likely and possibly a thunderstorm after 5pm.  Cloudy, with a high near 68. Calm wind.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F

    Chance Rain
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm, then rain after 8pm.  Low around 52. Calm wind becoming south around 5 mph after midnight.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Showers

  • Sunday

    Sunday: Rain likely, mainly before 11am.  Mostly cloudy, with a high near 65. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Rain Likely

  • Sunday Night

    Sunday Night: A 20 percent chance of rain before 11pm.  Mostly cloudy, with a low around 52.

    Low: 52 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 53. Calm wind becoming south around 5 mph after midnight.
Friday
Mostly cloudy, with a high near 67. South southeast wind around 5 mph becoming calm in the morning.
Friday Night
Cloudy, with a low around 52. Calm wind.
Saturday
A chance of rain between 11am and 5pm, then showers likely and possibly a thunderstorm after 5pm. Cloudy, with a high near 68. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm, then rain after 8pm. Low around 52. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Rain likely, mainly before 11am. Mostly cloudy, with a high near 65. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 52.
Monday
Partly sunny, with a high near 69.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Newcastle WA
 47.48°N 122.12°W (Elev. 499 ft)
11:26 am PDT Sep 10, 2026
5pm PDT Sep 10, 2026-6pm PDT Sep 17, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database