National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Fire Weather Concerns for the Plains; Thunderstorms in the Southeast; Record Warmth Spreads in the Southwest

Elevated to locally critical conditions will persist across the High Plains. Showers and scattered thunderstorms are expected over parts of the Southeast and Florida Peninsula. Clipper system will bring modest snowfall and strong winds from the Northern High Plains into the Upper Midwest this weekend. Record warmth will persist across the Southwest into the southern Plains. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Overcast

46°F

8°C

Humidity 70%
Wind Speed S 8 MPH
Barometer 30.3 in (1026.08 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 26 Feb 11:55 PM PST
Extended Forecast for

Newcastle WA

  • Overnight

    Overnight: A 30 percent chance of rain, mainly after 3am. Mostly cloudy, with a steady temperature around 43. South wind around 13 mph.

    Low: 43 °F

    Chance Rain

  • Friday

    Friday: A 30 percent chance of rain, mainly between 1pm and 4pm. Mostly cloudy, with a high near 47. Southwest wind 9 to 11 mph.

    High: 47 °F

    Chance Rain

  • Friday Night

    Friday Night: A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 37. Light northeast wind.

    Low: 37 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 49. North wind 5 to 8 mph.

    High: 49 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 34. Northeast wind 5 to 7 mph.

    Low: 34 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 53.

    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

Detailed Forecast

Overnight
A 30 percent chance of rain, mainly after 3am. Mostly cloudy, with a steady temperature around 43. South wind around 13 mph.
Friday
A 30 percent chance of rain, mainly between 1pm and 4pm. Mostly cloudy, with a high near 47. Southwest wind 9 to 11 mph.
Friday Night
A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 37. Light northeast wind.
Saturday
Partly sunny, with a high near 49. North wind 5 to 8 mph.
Saturday Night
Partly cloudy, with a low around 34. Northeast wind 5 to 7 mph.
Sunday
Sunny, with a high near 53.
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
A chance of rain after 4pm. Mostly cloudy, with a high near 55.
Tuesday Night
Rain likely. Mostly 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 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.53°N 122.14°W (Elev. 873 ft)
Last Update:
7:01 pm PST Feb 26, 2026
Forecast Valid:
12am PST Feb 27, 2026-6pm PST Mar 5, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation