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

CASTLE ROCK (TR950)

Lat: 46.27139°NLon: 122.89194°WElev: 213.0ft.

NA

56°F

13°C

Humidity 63%
Wind Speed S 5 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 13 Apr 12:09 PM PDT
Extended Forecast for

12 Miles SSW Mossyrock WA

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 48. West southwest wind 3 to 5 mph.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 48 °F

    Showers
    Likely

  • Tonight

    Tonight: A 40 percent chance of showers, mainly between 2am and 5am.  Snow level 3200 feet. Mostly cloudy, with a low around 40. Light south wind.

    Low: 40 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers between 7am and 10am, then rain after 10am.  Snow level 3000 feet rising to 3700 feet in the afternoon. High near 45. Light south wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 29 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 45 °F

    Rain Likely
    then Rain

  • Tuesday Night

    Tuesday Night: Rain before 2am, then rain, possibly mixed with snow.  Snow level 3900 feet lowering to 2000 feet after midnight . Low around 35. South southwest wind 5 to 10 mph becoming light and variable  after midnight. Winds could gust as high as 30 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 35 °F

    Rain then
    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow showers likely before 11am, then rain showers. Some thunder is also possible.  Snow level 1500 feet rising to 2100 feet in the afternoon. High near 43. Calm wind becoming west around 6 mph in the afternoon.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 43 °F

    Rain/Snow
    then Showers

  • Wednesday Night

    Wednesday Night: Rain showers before 11pm, then a chance of rain and snow showers.  Snow level 2100 feet lowering to 1500 feet after midnight . Low around 34. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Thursday

    Thursday: A slight chance of rain and snow showers before 8am, then a chance of rain showers.  Snow level 1500 feet rising to 2700 feet in the afternoon. Partly sunny, with a high near 48. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 48 °F

    Chance
    Rain/Snow
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of rain before 11pm.  Snow level 3000 feet lowering to 2300 feet after midnight . Partly cloudy, with a low around 37.

    Low: 37 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Friday

    Friday: A slight chance of rain.  Snow level 2200 feet rising to 3100 feet in the afternoon. Partly sunny, with a high near 52.

    High: 52 °F

    Slight Chance
    Rain

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 48. West southwest wind 3 to 5 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 40 percent chance of showers, mainly between 2am and 5am. Snow level 3200 feet. Mostly cloudy, with a low around 40. Light south wind.
Tuesday
A chance of showers between 7am and 10am, then rain after 10am. Snow level 3000 feet rising to 3700 feet in the afternoon. High near 45. Light south wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain before 2am, then rain, possibly mixed with snow. Snow level 3900 feet lowering to 2000 feet after midnight . Low around 35. South southwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wednesday
Rain and snow showers likely before 11am, then rain showers. Some thunder is also possible. Snow level 1500 feet rising to 2100 feet in the afternoon. High near 43. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wednesday Night
Rain showers before 11pm, then a chance of rain and snow showers. Snow level 2100 feet lowering to 1500 feet after midnight . Low around 34. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday
A slight chance of rain and snow showers before 8am, then a chance of rain showers. Snow level 1500 feet rising to 2700 feet in the afternoon. Partly sunny, with a high near 48. Chance of precipitation is 50%. Little or no snow accumulation expected.
Thursday Night
A slight chance of rain before 11pm. Snow level 3000 feet lowering to 2300 feet after midnight . Partly cloudy, with a low around 37.
Friday
A slight chance of rain. Snow level 2200 feet rising to 3100 feet in the afternoon. Partly sunny, with a high near 52.
Friday Night
Mostly cloudy, with a low around 37.
Saturday
Mostly cloudy, with a high near 58.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 44.
Sunday
Rain likely. Mostly cloudy, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles SSW Mossyrock WA
 46.36°N 122.58°W (Elev. 1184 ft)
11:41 am PDT Apr 13, 2026
12pm PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
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