Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

rain,mist

46°F

8°C

Humidity 93%
Wind Speed SSE 3 MPH
Barometer 29.76 in (1007.79 mb)
Dewpoint 45°F (7°C)
Visibility 5.00 mi
Last update 15 Apr 12:00 AM PDT
Extended Forecast for

3 Miles ENE Newcastle WA

  • Overnight

    Overnight: A 40 percent chance of rain, mainly before 1am.  Mostly cloudy, with a low around 38. East wind around 5 mph becoming calm.

    Low: 38 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain and thunderstorms likely before 3pm, then showers and possibly a thunderstorm between 3pm and 5pm, then rain likely and possibly a thunderstorm after 5pm.  High near 51. Calm wind becoming south southwest around 5 mph in the afternoon.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 51 °F

    Chance
    Showers then
    Showers

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 10pm.  Mostly cloudy, with a low around 36. Calm wind.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Rain Likely
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 57. Light and variable wind.

    High: 57 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41. Light south wind.

    Low: 41 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 67.

    High: 67 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of rain.  Mostly cloudy, with a low around 47.

    Low: 47 °F

    Chance Rain

Detailed Forecast

Overnight
A 40 percent chance of rain, mainly before 1am. Mostly cloudy, with a low around 38. East wind around 5 mph becoming calm.
Wednesday
Rain and thunderstorms likely before 3pm, then showers and possibly a thunderstorm between 3pm and 5pm, then rain likely and possibly a thunderstorm after 5pm. High near 51. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 36. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Mostly sunny, with a high near 57. Light and variable wind.
Thursday Night
Mostly cloudy, with a low around 41. Light south wind.
Friday
Partly sunny, with a high near 59.
Friday Night
Mostly cloudy, with a low around 40.
Saturday
Mostly cloudy, with a high near 67.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 47.
Sunday
A chance of rain. Mostly cloudy, with a high near 67.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 46.
Monday
A chance of rain. Partly sunny, with a high near 69.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 48.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Newcastle WA
 47.58°N 122.09°W (Elev. 200 ft)
11:27 pm PDT Apr 14, 2026
12am PDT Apr 15, 2026-6pm PDT Apr 21, 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