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Monticello, Washington Weather Forecast
Monticello, Washington Weather
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Click for Flood Watch for Monticello, Washington
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Weather Forecast for Monticello, Washington : Cowlitz County
Issued: 11:45 pm PST Dec 15, 2025 Latitude: 46.1381677 Longitude: -122.9381672 View on Google Maps

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Tonight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
80% chance of rain on Tonight 90% chance of rain on Tuesday 100% chance of thunderstorms on Wednesday 100% chance of rain on Thursday Rain on Friday 70% chance of rain & snow on Saturday 70% chance of rain on Sunday 70% chance of rain on Monday
Low: 48°F High: 57°F High: 48°F High: 53°F High: 46°F High: 45°F High: 47°F High: 48°F
Low: 42°F Low: 41°F Low: 41°F Low: 39°F Low: 38°F Low: 41°F  
Rain Rain Thunderstorms Rain Rain Rain & Snow Rain Rain
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Current Conditions at
KELSO - (KKLS)
52°
Cloudy
as of 10:56 PM PST
Rel. Humidity: 87%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 3600ft
Current Conditions at
SCAPPOOSE - (KSPB)
48°
Cloudy
Light Rain
as of 10:53 PM PST
Rel. Humidity: 100%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 30.11 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 4700ft, Solid Overcast at 6000ft
Current Conditions at
CHEHALIS-CENTRALIA - (KCLS)
50°
Cloudy
as of 11:35 PM PST
Rel. Humidity: 100%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 30.08 in.
Flight Rule: VFR
Wind Data
8 MPH
Gust: 15 MPH
170° South
Cloud Level(s): Few at 4400ft, Broken at 5500ft, Solid Overcast at 10000ft
Current Conditions at
VANCOUVER - (KVUO)
54°
Cloudy
as of 10:53 PM PST
Rel. Humidity: 87%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
3 MPH
Cloud Level(s): Few at 4000ft, Broken at 4900ft, Solid Overcast at 8500ft
80% chance of rain Tonight Tonight... Rain, mainly after 3am. Low around 48. Southeast wind around 6 mph. Chance of precipitation is 80%.
90% chance of rain Tuesday Tuesday... Rain. High near 57. South wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
100% chance of thunderstorms Tuesday Night Tuesday Night... Rain and possibly a thunderstorm. Low around 42. Breezy, with a south wind 13 to 16 mph becoming west after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
100% chance of thunderstorms Wednesday Wednesday... Rain before 7am, then showers and possibly a thunderstorm after 7am. High near 48. Southwest wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
90% chance of rain Wednesday Night Wednesday Night... Rain. Low around 41. South southeast wind around 7 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
100% chance of rain Thursday Thursday... Rain. High near 53. Chance of precipitation is 100%.
100% chance of rain Thursday Night Thursday Night... Rain. Low around 41. Chance of precipitation is 100%.
Rain on Friday Friday... Rain. Cloudy, with a high near 46.
70% chance of rain & snow Friday Night Friday Night... Rain likely. Snow level 2200 feet. Mostly cloudy, with a low around 39.
70% chance of rain & snow Saturday Saturday... Rain likely. Snow level 2300 feet. Mostly cloudy, with a high near 45.
70% chance of rain Saturday Night Saturday Night... Rain likely. Mostly cloudy, with a low around 38.
70% chance of rain Sunday Sunday... Rain likely. Mostly cloudy, with a high near 47.
70% chance of rain Sunday Night Sunday Night... Rain likely. Mostly cloudy, with a low around 41.
70% chance of rain Monday Monday... Rain likely. Mostly cloudy, with a high near 48.
Current Radar Image


Sun Almanac for Monticello, Washington
Sunrise: 07:49 AM
Sunset: 4:27 PM
Civil Sunrise:07:14 AM
Civil Sunset: 5:01 PM
Nautical Sunrise: 06:36 AM
Nautical Sunset: 5:40 PM
Astro Sunrise: 05:59 AM
Astro Sunset: 6:16 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.