Fire Weather Concerns; Record Warmth Spreads

The Plains to the mid-Mississippi Valley continue with warm and dry conditions. Any fires that initiate could spread quickly. The warm temperatures will expand across the Southern Plains into the Southwest where numerous records are expected through the weekend. Meanwhile, a cold front will move southward across the northern Plains and Great Lakes region where some snow will develop this weekend. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Overcast

46°F

8°C

Humidity 76%
Wind Speed S 4 MPH
Barometer 30.31 in (1026.41 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 27 Feb 07:10 AM PST
Extended Forecast for

Newcastle WA

  • Today

    Today: A slight chance of rain before 10am, then a slight chance of rain after 11am.  Mostly cloudy, with a high near 49. South southwest wind 7 to 9 mph.  Chance of precipitation is 20%.

    High: 49 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. Light east northeast wind.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 50. North wind 5 to 9 mph.

    High: 50 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 35. North northeast wind 5 to 7 mph.

    Low: 35 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 53. North wind around 6 mph.

    High: 53 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Rain likely, mainly after 4pm.  Mostly cloudy, with a high near 55.

    High: 55 °F

    Rain Likely

Detailed Forecast

Today
A slight chance of rain before 10am, then a slight chance of rain after 11am. Mostly cloudy, with a high near 49. South southwest wind 7 to 9 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 37. Light east northeast wind.
Saturday
Partly sunny, with a high near 50. North wind 5 to 9 mph.
Saturday Night
Mostly cloudy, with a low around 35. North northeast wind 5 to 7 mph.
Sunday
Sunny, with a high near 53. North wind around 6 mph.
Sunday Night
Mostly clear, with a low around 35.
Monday
Sunny, with a high near 55.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 55.
Tuesday Night
Rain. Cloudy, with a low around 45.
Wednesday
Rain. Cloudy, with a high near 51.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 43.
Thursday
A chance of rain. Mostly cloudy, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.55°N 122.14°W (Elev. 538 ft)
7:01 am PST Feb 27, 2026
7am PST Feb 27, 2026-6pm PST Mar 5, 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