Tracking a Winter Storm; Unusual Early-Season Heat Wave in the Southwest

A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

light snow,mist

35°F

2°C

Humidity 95%
Wind Speed SSE 3 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 34°F (1°C)
Visibility 6.00 mi
Last update 14 Mar 06:37 AM PDT
Extended Forecast for

Newcastle WA

Winter Weather Advisory March 14, 06:54am until March 14, 11:00am
Click here for hazard details and duration
...
  •  
    Winter Weather Advisory March 14, 06:54am until March 14, 11:00am

    NOW until 11:00am Sat

    Winter Weather Advisory

  • Today

    High: 44 °F

    Chance
    Rain/Snow
    then Slight
    Chance
    Rain/Snow

  • Tonight

    Tonight: Mostly cloudy, with a low around 30. Light east southeast wind.

    Low: 30 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain and snow likely after 11am, becoming all rain after 2pm.  Mostly cloudy, with a high near 46. Calm wind.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 46 °F

    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: Rain.  Low around 41. South southeast wind 3 to 5 mph.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Rain then
    Rain Likely

  • Monday

    Monday: Rain.  High near 52. South wind 6 to 8 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Rain

  • Monday Night

    Monday Night: Rain likely, mainly after 11pm.  Cloudy, with a low around 45. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain.  High near 54. Chance of precipitation is 90%.

    High: 54 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Cloudy, with a low around 49.

    Low: 49 °F

    Rain

Detailed Forecast

Today
A chance of rain and snow showers, mainly before 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 44. Calm wind becoming southwest around 5 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Tonight
Mostly cloudy, with a low around 30. Light east southeast wind.
Sunday
Rain and snow likely after 11am, becoming all rain after 2pm. Mostly cloudy, with a high near 46. Calm wind. Chance of precipitation is 60%. Little or no snow accumulation expected.
Sunday Night
Rain. Low around 41. South southeast wind 3 to 5 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain. High near 52. South wind 6 to 8 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain likely, mainly after 11pm. Cloudy, with a low around 45. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain. High near 54. Chance of precipitation is 90%.
Tuesday Night
Rain. Cloudy, with a low around 49.
Wednesday
Rain. Cloudy, with a high near 56.
Wednesday Night
Rain. Cloudy, with a low around 51.
Thursday
Rain. Cloudy, with a high near 58.
Thursday Night
Rain likely. Mostly cloudy, with a low around 49.
Friday
Rain likely. Mostly cloudy, with a high near 60.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.54°N 122.17°W (Elev. 397 ft)
2:25 am PDT Mar 14, 2026
6am PDT Mar 14, 2026-6pm PDT Mar 20, 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