Major Winter Storm Ongoing in the Upper Midwest and Great Lakes; Severe Weather Along the East Coast

A major winter storm will continue to bring blizzard conditions, heavy snowfall, icing, and strong winds through today across the Upper Midwest and Upper Great Lakes. Widespread severe storms are expected across the entire eastern U.S. with the highest threat over the interior Mid-Atlantic, where there is a risk for damaging wind gusts and a few tornadoes. Heat continues to build in the West. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Overcast

52°F

11°C

Humidity 81%
Wind Speed S 6 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 16 Mar 01:20 PM PDT
Extended Forecast for

Newcastle WA

Flood Watch March 18, 01:00pm until March 20, 05:00pm
Click here for hazard details and duration
Flood Watch
  • This Afternoon

    This Afternoon: A 20 percent chance of rain before 2pm.  Cloudy, with a high near 55. South southwest wind around 8 mph.

    High: 55 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Rain likely, mainly after 1am.  Cloudy, with a low around 48. South wind 7 to 9 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance Rain
    then Rain
    Likely

  • Tuesday

    Tuesday: Rain.  High near 53. South wind around 9 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 53 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Low around 50. South wind around 8 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Rain

  • Wednesday

    Wednesday: Rain.  High near 54. South wind 7 to 9 mph.  Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 54 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain.  Low around 51. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 51 °F

    Rain

  • Thursday

    Thursday: Rain.  High near 56. Chance of precipitation is 90%.

    High: 56 °F

    Rain

  • Thursday Night

    Thursday Night: Rain.  Cloudy, with a low around 50.

    Low: 50 °F

    Rain

  • Friday

    Friday: Rain.  Cloudy, with a high near 55.

    High: 55 °F

    Rain

Detailed Forecast

This Afternoon
A 20 percent chance of rain before 2pm. Cloudy, with a high near 55. South southwest wind around 8 mph.
Tonight
Rain likely, mainly after 1am. Cloudy, with a low around 48. South wind 7 to 9 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain. High near 53. South wind around 9 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain. Low around 50. South wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain. High near 54. South wind 7 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. Low around 51. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain. High near 56. Chance of precipitation is 90%.
Thursday Night
Rain. Cloudy, with a low around 50.
Friday
Rain. Cloudy, with a high near 55.
Friday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 41.
Saturday
A chance of rain. Partly sunny, with a high near 50.
Saturday Night
A slight chance of rain. Partly cloudy, with a low around 37.
Sunday
A chance of rain and snow. Mostly sunny, with a high near 51.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.53°N 122.14°W (Elev. 873 ft)
8:00 am PDT Mar 16, 2026
1pm PDT Mar 16, 2026-6pm PDT Mar 22, 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