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.

Clear

48°F

9°C

Humidity 70%
Wind Speed N 8 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 28 Feb 11:00 AM PST
Extended Forecast for

Newcastle WA

  • Today

    Today: Mostly sunny, with a high near 52. North wind 7 to 9 mph.

    High: 52 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 36. North northeast wind around 6 mph.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 56. Calm wind becoming north northwest around 6 mph in the morning.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 56. Light and variable wind.

    High: 56 °F

    Sunny

  • Monday Night

    Monday Night: A 10 percent chance of rain after 4am.  Mostly cloudy, with a low around 41.

    Low: 41 °F

    Slight Chance
    Rain

  • Tuesday

    Tuesday: Rain likely, mainly after 10am.  Cloudy, with a high near 53. Chance of precipitation is 70%.

    High: 53 °F

    Rain Likely

  • Tuesday Night

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

    Low: 45 °F

    Rain

  • Wednesday

    Wednesday: Rain.  Cloudy, with a high near 51.

    High: 51 °F

    Rain

Detailed Forecast

Today
Mostly sunny, with a high near 52. North wind 7 to 9 mph.
Tonight
Mostly cloudy, with a low around 36. North northeast wind around 6 mph.
Sunday
Sunny, with a high near 56. Calm wind becoming north northwest around 6 mph in the morning.
Sunday Night
Mostly clear, with a low around 37. Calm wind.
Monday
Sunny, with a high near 56. Light and variable wind.
Monday Night
A 10 percent chance of rain after 4am. Mostly cloudy, with a low around 41.
Tuesday
Rain likely, mainly after 10am. Cloudy, with a high near 53. Chance of precipitation is 70%.
Tuesday Night
Rain. Cloudy, with a low around 45.
Wednesday
Rain. Cloudy, with a high near 51.
Wednesday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 43.
Thursday
Rain likely. Mostly cloudy, with a high near 50.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 42.
Friday
Rain likely. Mostly cloudy, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.52°N 122.17°W (Elev. 400 ft)
7:01 am PST Feb 28, 2026
11am PST Feb 28, 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