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 75%
Wind Speed N 0 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 27 Feb 10:00 PM PST
Extended Forecast for

Newcastle WA

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. Light and variable wind.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 51. North wind 6 to 9 mph.

    High: 51 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36. North northeast wind 3 to 6 mph.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 55. North northwest wind 3 to 5 mph.

    High: 55 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Tuesday

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

    High: 55 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain.  Cloudy, with a low around 45.

    Low: 45 °F

    Rain

Detailed Forecast

Tonight
Mostly cloudy, with a low around 38. Light and variable wind.
Saturday
Mostly sunny, with a high near 51. North wind 6 to 9 mph.
Saturday Night
Partly cloudy, with a low around 36. North northeast wind 3 to 6 mph.
Sunday
Sunny, with a high near 55. North northwest wind 3 to 5 mph.
Sunday Night
Mostly clear, with a low around 36. Calm wind.
Monday
Sunny, with a high near 56.
Monday Night
Partly cloudy, with a low around 39.
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 42.
Thursday
Rain likely. Mostly cloudy, with a high near 51.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 43.
Friday
Rain likely. Cloudy, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.54°N 122.17°W (Elev. 397 ft)
7:00 pm PST Feb 27, 2026
10pm PST Feb 27, 2026-6pm PST Mar 6, 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