Tracking Areas of Fire Weather, Winter Weather, and Severe Weather Thursday

Continuation of gusty winds and low relative humidity will bring additional periods of critical fire weather to the southern Plains Thursday and Friday. Another Pacific storm will continue gusty winds and heavy snow over the western mountains into Thursday. Severe thunderstorms are possible across parts of the middle Mississippi into lower Ohio Valleys Thursday afternoon into early evening. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Partly Cloudy

36°F

2°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.76 in (1007.79 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 18 Feb 09:30 PM PST
Extended Forecast for

Newcastle WA

  • Tonight

    Tonight: A chance of rain and snow showers before 4am, then a slight chance of snow showers between 4am and 5am.  Mostly cloudy, with a low around 31. Light and variable wind becoming northeast around 5 mph after midnight.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 31 °F

    Chance
    Rain/Snow

  • Thursday

    Thursday: A 30 percent chance of snow showers, mainly after 10am.  Mostly cloudy, then gradually becoming sunny, with a high near 38. North wind 7 to 9 mph.  Little or no snow accumulation expected.

    High: 38 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 28. North wind 5 to 7 mph becoming calm  after midnight.

    Low: 28 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of snow after 10am, mixing with rain after 4pm.  Partly sunny, with a high near 42. Wind chill values between 25 and 35. Light and variable wind.  Chance of precipitation is 20%.

    High: 42 °F

    Slight Chance
    Snow then
    Slight Chance
    Rain/Snow

  • Friday Night

    Friday Night: A slight chance of rain and snow before 10pm, then a chance of snow.  Mostly cloudy, with a low around 34. East wind 5 to 7 mph.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 34 °F

    Slight Chance
    Rain/Snow
    then Chance
    Snow

  • Saturday

    Saturday: A chance of snow before 10am, then a chance of rain.  Mostly cloudy, with a high near 49. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 49 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Saturday Night

    Saturday Night: A 40 percent chance of rain.  Mostly cloudy, with a low around 39.

    Low: 39 °F

    Chance Rain

  • Sunday

    Sunday: Rain, mainly after 10am.  Mostly cloudy, with a high near 52.

    High: 52 °F

    Rain

  • Sunday Night

    Sunday Night: Rain.  Mostly cloudy, with a low around 39.

    Low: 39 °F

    Rain

Detailed Forecast

Tonight
A chance of rain and snow showers before 4am, then a slight chance of snow showers between 4am and 5am. Mostly cloudy, with a low around 31. Light and variable wind becoming northeast around 5 mph after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.
Thursday
A 30 percent chance of snow showers, mainly after 10am. Mostly cloudy, then gradually becoming sunny, with a high near 38. North wind 7 to 9 mph. Little or no snow accumulation expected.
Thursday Night
Partly cloudy, with a low around 28. North wind 5 to 7 mph becoming calm after midnight.
Friday
A slight chance of snow after 10am, mixing with rain after 4pm. Partly sunny, with a high near 42. Wind chill values between 25 and 35. Light and variable wind. Chance of precipitation is 20%.
Friday Night
A slight chance of rain and snow before 10pm, then a chance of snow. Mostly cloudy, with a low around 34. East wind 5 to 7 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday
A chance of snow before 10am, then a chance of rain. Mostly cloudy, with a high near 49. Chance of precipitation is 40%. Little or no snow accumulation expected.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 39.
Sunday
Rain, mainly after 10am. Mostly cloudy, with a high near 52.
Sunday Night
Rain. Mostly cloudy, with a low around 39.
Monday
Rain. Cloudy, with a high near 48.
Monday Night
Rain likely. Mostly cloudy, with a low around 38.
Tuesday
Rain likely. Mostly cloudy, with a high near 48.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 38.
Wednesday
Rain likely. Mostly cloudy, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.53°N 122.14°W (Elev. 873 ft)
7:01 pm PST Feb 18, 2026
9pm PST Feb 18, 2026-6pm PST Feb 25, 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