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

52°F

11°C

Humidity 53%
Wind Speed SW 9 MPH
Barometer 30.31 in (1026.41 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 27 Feb 01:35 PM PST
Extended Forecast for

Newcastle WA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 49. Southwest wind around 8 mph.

    High: 49 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. South wind around 5 mph becoming light and variable  in the evening.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 50. North wind 7 to 10 mph.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 35. North northeast wind 3 to 6 mph.

    Low: 35 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 54. Light and variable wind becoming north northwest around 5 mph in the afternoon.

    High: 54 °F

    Sunny

  • Sunday Night

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

    Low: 36 °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 54.

    High: 54 °F

    Rain Likely

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 49. Southwest wind around 8 mph.
Tonight
Mostly cloudy, with a low around 37. South wind around 5 mph becoming light and variable in the evening.
Saturday
Mostly sunny, with a high near 50. North wind 7 to 10 mph.
Saturday Night
Partly cloudy, with a low around 35. North northeast wind 3 to 6 mph.
Sunday
Sunny, with a high near 54. Light and variable wind becoming north northwest around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 36.
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 54.
Tuesday Night
Rain. Cloudy, with a low around 45.
Wednesday
Rain. Cloudy, with a high near 50.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 42.
Thursday
Rain likely. Mostly cloudy, with a high near 50.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.53°N 122.14°W (Elev. 873 ft)
1:25 pm PST Feb 27, 2026
1pm PST Feb 27, 2026-6pm PST Mar 5, 2026
 
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