Severe Thunderstorm, Flooding, and Winter Weather Threats on Tuesday

Scattered severe thunderstorms are forecast Tuesday from the southern Plains into the southern Great Lakes vicinity. Thunderstorms may also produce heavy to excessive rain that could pose a flooding threat from central Texas into southern Oklahoma and northern Missouri into southern Michigan. A heavy wintry mix is forecast for the Great Lakes into northern Maine. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Mostly Cloudy

37°F

3°C

Humidity 81%
Wind Speed S 6 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 10 Mar 07:53 AM PDT
Extended Forecast for

Newcastle WA

  • Today

    Today: Rain, possibly mixed with snow.  High near 42. Wind chill values between 24 and 33. South southwest wind 13 to 17 mph, with gusts as high as 23 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 42 °F

    Chance
    Rain/Snow
    then
    Rain/Snow

  • Tonight

    Tonight: Rain and snow likely before 2am, then rain.  Low around 38. South wind 14 to 16 mph, with gusts as high as 21 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 38 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain.  High near 48. South wind 6 to 11 mph.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 48 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain before 2am, then showers after 2am.  Low around 40. Breezy, with a south southwest wind 16 to 24 mph, with gusts as high as 33 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Rain and
    Breezy

  • Thursday

    Thursday: Showers before 11am, then rain after 11am.  High near 44. South southwest wind 9 to 14 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 44 °F

    Showers

  • Thursday Night

    Thursday Night: Rain.  Low around 38. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Low: 38 °F

    Rain

  • Friday

    Friday: Rain.  High near 42. Chance of precipitation is 100%.

    High: 42 °F

    Rain

  • Friday Night

    Friday Night: Rain, mainly before 11pm.  Mostly cloudy, with a low around 34.

    Low: 34 °F

    Rain

  • Saturday

    Saturday: A chance of rain and snow showers before 2pm, then a chance of rain showers.  Partly sunny, with a high near 45.

    High: 45 °F

    Chance
    Rain/Snow

Detailed Forecast

Today
Rain, possibly mixed with snow. High near 42. Wind chill values between 24 and 33. South southwest wind 13 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tonight
Rain and snow likely before 2am, then rain. Low around 38. South wind 14 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday
Rain. High near 48. South wind 6 to 11 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday Night
Rain before 2am, then showers after 2am. Low around 40. Breezy, with a south southwest wind 16 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Showers before 11am, then rain after 11am. High near 44. South southwest wind 9 to 14 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain. Low around 38. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Friday
Rain. High near 42. Chance of precipitation is 100%.
Friday Night
Rain, mainly before 11pm. Mostly cloudy, with a low around 34.
Saturday
A chance of rain and snow showers before 2pm, then a chance of rain showers. Partly sunny, with a high near 45.
Saturday Night
A slight chance of rain and snow showers after 11pm. Mostly cloudy, with a low around 34.
Sunday
Rain and snow likely. Cloudy, with a high near 47.
Sunday Night
Rain likely. Cloudy, with a low around 41.
Monday
Rain likely. Cloudy, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.55°N 122.14°W (Elev. 538 ft)
2:50 am PDT Mar 10, 2026
8am PDT Mar 10, 2026-6pm PDT Mar 16, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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