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Castle Rock, Washington Weather Forecast
Castle Rock, Washington Weather
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Weather Forecast for Castle Rock, Washington : Cowlitz County
Issued: 12:41 am PST Dec 15, 2025 Latitude: 46.2751111 Longitude: -122.9076141 View on Google Maps

MouseOver for Detail Forecast
Overnight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
90% chance of thunderstorms on Overnight 90% chance of thunderstorms on Monday 100% chance of rain on Tuesday 90% chance of thunderstorms on Wednesday Rain on Thursday Rain on Friday Rain on Saturday Rain on Sunday
Low: 51°F High: 58°F High: 55°F High: 48°F High: 50°F High: 47°F High: 46°F High: 47°F
Low: 47°F Low: 40°F Low: 41°F Low: 41°F Low: 38°F Low: 38°F  
Thunderstorms Thunderstorms Rain Thunderstorms Rain Rain Rain Rain
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Current Conditions at
KELSO - (KKLS)
50°
Cloudy
Light Rain
as of 11:56 PM PST
Rel. Humidity: 93%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
7 MPH
140° Southeast
Cloud Level(s): Solid Overcast at 5500ft
Current Conditions at
CHEHALIS-CENTRALIA - (KCLS)
54°
Cloudy
as of 12:35 AM PST
Rel. Humidity: 81%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 29.95 in.
Flight Rule: VFR
Wind Data
8 MPH
Gust: 14 MPH
180° South
Cloud Level(s): Solid Overcast at 4000ft
Current Conditions at
SCAPPOOSE - (KSPB)
48°
Cloudy
Light Rain
as of 11:53 PM PST
Rel. Humidity: 93%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
3 MPH
130° Southeast
Cloud Level(s): Few at 3800ft, Solid Overcast at 5500ft
Current Conditions at
VANCOUVER - (KVUO)
52°
Cloudy
Light Rain
as of 11:53 PM PST
Rel. Humidity: 81%
Dew Point: 46°F
Visibility: 9 Miles
Pressure: 30.04 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Few at 4900ft, Broken at 6000ft, Solid Overcast at 8000ft
90% chance of thunderstorms Overnight Overnight... Rain before 4am, then showers and possibly a thunderstorm, mainly after 4am. Steady temperature around 51. South wind around 8 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

90% chance of thunderstorms Monday Monday... Showers and possibly a thunderstorm. High near 58. South wind 5 to 9 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

100% chance of thunderstorms Monday Night Monday Night... Showers and possibly a thunderstorm. Low around 47. Light south wind. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

100% chance of rain Tuesday Tuesday... Rain. High near 55. South southwest wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

100% chance of rain Tuesday Night Tuesday Night... Rain. Low around 40. West southwest wind around 9 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

90% chance of thunderstorms Wednesday Wednesday... Rain before 7am, then showers between 7am and 10am, then showers and possibly a thunderstorm after 10am. High near 48. Chance of precipitation is 90%.

90% chance of rain Wednesday Night Wednesday Night... Showers before 10pm, then rain after 10pm. Low around 41. Chance of precipitation is 90%.

Rain on Thursday Thursday... Rain. The rain could be heavy at times. Cloudy, with a high near 50.

Rain on Thursday Night Thursday Night... Rain. Cloudy, with a low around 41.

Rain on Friday Friday... Rain. Cloudy, with a high near 47.

Rain and Snow on Friday Night Friday Night... Rain. Snow level 2100 feet. Cloudy, with a low around 38.

Rain on Saturday Saturday... Rain. Cloudy, with a high near 46.

Rain on Saturday Night Saturday Night... Rain. Cloudy, with a low around 38.

Rain on Sunday Sunday... Rain. Mostly cloudy, with a high near 47.

Current Radar Image


Sun Almanac for Castle Rock, Washington
Sunrise: 07:48 AM
Sunset: 4:26 PM
Civil Sunrise:07:13 AM
Civil Sunset: 5:01 PM
Nautical Sunrise: 06:35 AM
Nautical Sunset: 5:39 PM
Astro Sunrise: 05:59 AM
Astro Sunset: 6:15 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.