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Illia, Washington Weather Forecast
Illia, Washington Weather
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Weather Forecast for Illia, Washington : Garfield County
Issued: 3:12 am PST Dec 17, 2025 Latitude: 46.6759917 Longitude: -117.504354 View on Google Maps

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Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
70% chance of rain on Overnight 60% chance of rain on Wednesday 70% chance of rain on Thursday 70% chance of rain on Friday 40% chance of rain on Saturday 50% chance of rain on Sunday 60% chance of rain on Monday 20% chance of rain on Tuesday
Low: 42°F High: 52 °F High: 55°F High: 48°F High: 47°F High: 46°F High: 48°F High: 46°F
Low: 37°F Low: 41°F Low: 35°F Low: 34°F Low: 38°F Low: 34°F  
Rain Rain Rain Rain Rain Rain Rain Rain
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Current Conditions at
PULLMAN - (KPUW)
48°
Cloudy
Rain Mist
as of 2:53 AM PST
Rel. Humidity: 93%
Dew Point: 46°F
Visibility: 4 Miles
Pressure: 29.34 in.
Flight Rule: MVFR
Wind Data
7 MPH
230° Southwest
Cloud Level(s): Few at 3500ft, Solid Overcast at 4500ft
Current Conditions at
LEWISTON - (KLWS)
50°
Cloudy
as of 2:56 AM PST
Rel. Humidity: 76%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 29.30 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Broken at 8000ft, Solid Overcast at 9500ft
Current Conditions at
WALLA WALLA - (KALW)
55°
Cloudy
as of 2:53 AM PST
Rel. Humidity: 76%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 29.33 in.
Flight Rule: VFR
Wind Data
15 MPH
Gust: 29 MPH
260° West
Cloud Level(s): Solid Overcast at 6000ft
70% chance of rain Overnight Overnight... Rain likely. Cloudy, with a low around 42. Windy, with a southwest wind around 26 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
60% chance of rain Wednesday Wednesday... Rain likely. Mostly cloudy through mid morning, then becoming sunny, with a temperature rising to near 52 by noon, then falling to around 43 during the remainder of the day. Very windy, with a southwest wind 35 to 40 mph decreasing to 24 to 29 mph in the afternoon. Winds could gust as high as 65 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
60% chance of rain Wednesday Night Wednesday Night... Rain likely. Mostly cloudy, with a low around 37. Southwest wind 6 to 14 mph becoming southeast after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
70% chance of rain Thursday Thursday... Rain likely. Cloudy, with a high near 55. Southeast wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
70% chance of rain Thursday Night Thursday Night... Rain likely. Cloudy, with a low around 41. Breezy, with a southwest wind 18 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
70% chance of rain Friday Friday... Rain likely. Mostly cloudy, with a high near 48. Chance of precipitation is 70%.
50% chance of rain Friday Night Friday Night... A 50 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 35.
40% chance of rain Saturday Saturday... A 40 percent chance of rain, mainly after 10am. Partly sunny, with a high near 47.
30% chance of rain Saturday Night Saturday Night... A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 34.
50% chance of rain Sunday Sunday... A 50 percent chance of rain. Partly sunny, with a high near 46.
70% chance of rain Sunday Night Sunday Night... Rain likely. Mostly cloudy, with a low around 38. Chance of precipitation is 70%.
60% chance of rain Monday Monday... Rain likely. Partly sunny, with a high near 48. Chance of precipitation is 60%.
30% chance of rain Monday Night Monday Night... A 30 percent chance of rain. Mostly cloudy, with a low around 34.
20% chance of rain Tuesday Tuesday... A 20 percent chance of rain. Partly sunny, with a high near 46.
Sun Almanac for Illia, Washington
Sunrise: 07:30 AM
Sunset: 4:03 PM
Civil Sunrise:06:54 AM
Civil Sunset: 4:38 PM
Nautical Sunrise: 06:16 AM
Nautical Sunset: 5:17 PM
Astro Sunrise: 05:39 AM
Astro Sunset: 5:54 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.