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.

Overcast

40°F

4°C

Humidity 76%
Wind Speed N 0 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 09 Mar 07:53 PM PDT
Extended Forecast for

Newcastle WA

  • Tonight

    Tonight: Rain and snow likely before 11pm, then a chance of snow.  Mostly cloudy, with a low around 32. South southwest wind around 8 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 32 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Tuesday

    Tuesday: Rain, possibly mixed with snow.  High near 43. South southwest wind 7 to 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 43 °F

    Chance Snow
    then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain, possibly mixed with snow, becoming all rain after 8pm.  Low around 37. South wind around 11 mph, with gusts as high as 21 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 37 °F

    Rain/Snow
    then Rain

  • Wednesday

    Wednesday: Rain.  High near 48. South wind 9 to 16 mph, with gusts as high as 21 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.  Low around 41. Breezy, with a southwest wind 20 to 23 mph, with gusts as high as 29 mph.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 41 °F

    Rain and
    Breezy

  • Thursday

    Thursday: Rain.  High near 44. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 44 °F

    Rain

  • Thursday Night

    Thursday Night: Rain before 11pm, then rain, possibly mixed with snow between 11pm and 2am, then rain after 2am.  Low around 39. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 39 °F

    Rain/Snow

  • Friday

    Friday: Rain.  Cloudy, with a high near 43.

    High: 43 °F

    Rain

  • Friday Night

    Friday Night: Rain before 11pm, then rain likely, possibly mixed with snow.  Cloudy, with a low around 36.

    Low: 36 °F

    Rain/Snow

Detailed Forecast

Tonight
Rain and snow likely before 11pm, then a chance of snow. Mostly cloudy, with a low around 32. South southwest wind around 8 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday
Rain, possibly mixed with snow. High near 43. South southwest wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Tuesday Night
Rain, possibly mixed with snow, becoming all rain after 8pm. Low around 37. South wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wednesday
Rain. High near 48. South wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday Night
Rain. Low around 41. Breezy, with a southwest wind 20 to 23 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday
Rain. High near 44. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
Rain before 11pm, then rain, possibly mixed with snow between 11pm and 2am, then rain after 2am. Low around 39. Chance of precipitation is 100%. Little or no snow accumulation expected.
Friday
Rain. Cloudy, with a high near 43.
Friday Night
Rain before 11pm, then rain likely, possibly mixed with snow. Cloudy, with a low around 36.
Saturday
Rain and snow likely before 11am, then a chance of rain. Mostly cloudy, with a high near 46.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 36.
Sunday
Rain and snow likely. Cloudy, with a high near 47.
Sunday Night
Rain. Cloudy, with a low around 43.
Monday
Rain. Cloudy, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.53°N 122.14°W (Elev. 873 ft)
8:01 pm PDT Mar 9, 2026
8pm PDT Mar 9, 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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