Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Central Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Overcast

54°F

12°C

Humidity 58%
Wind Speed SSW 10 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 13 Apr 11:35 AM PDT
Extended Forecast for

2 Miles E Newcastle WA

  • Today

    Today: A 50 percent chance of rain, mainly after 3pm.  Mostly cloudy, with a high near 50. Southwest wind around 11 mph.

    High: 50 °F

    Chance Rain

  • Tonight

    Tonight: Rain likely, mainly before midnight.  Mostly cloudy, with a low around 41. South southwest wind 11 to 14 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain, mainly after 9am.  High near 46. South southwest wind 15 to 18 mph, with gusts as high as 24 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 46 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Low around 36. Southeast wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 25 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 36 °F

    Rain then
    Rain Likely

  • Wednesday

    Wednesday: A chance of rain and snow before 11am, then rain. Some thunder is also possible.  High near 46. South southeast wind 6 to 8 mph becoming southwest in the morning.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 46 °F

    Rain/Snow
    then Showers

  • Wednesday Night

    Wednesday Night: Rain likely before 11pm.  Mostly cloudy, with a low around 34. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Rain Likely
    then Mostly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

Detailed Forecast

Today
A 50 percent chance of rain, mainly after 3pm. Mostly cloudy, with a high near 50. Southwest wind around 11 mph.
Tonight
Rain likely, mainly before midnight. Mostly cloudy, with a low around 41. South southwest wind 11 to 14 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain, mainly after 9am. High near 46. South southwest wind 15 to 18 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain. Low around 36. Southeast wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
A chance of rain and snow before 11am, then rain. Some thunder is also possible. High near 46. South southeast wind 6 to 8 mph becoming southwest in the morning. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday Night
Rain likely before 11pm. Mostly cloudy, with a low around 34. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Mostly sunny, with a high near 52.
Thursday Night
Partly cloudy, with a low around 38.
Friday
Partly sunny, with a high near 53.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Mostly cloudy, with a high near 58.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 44.
Sunday
A chance of rain. Mostly cloudy, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Newcastle WA
 47.55°N 122.11°W (Elev. 794 ft)
11:27 am PDT Apr 13, 2026
11am PDT Apr 13, 2026-6pm PDT Apr 19, 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