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Sulphur, Washington Weather Forecast
Sulphur, Washington Weather
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Weather Forecast for Sulphur, Washington : Franklin County
Issued: 3:20 pm PST Dec 15, 2025 Latitude: 46.6373624 Longitude: -118.7258281 View on Google Maps

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Tonight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
Increasing Clouds on Tonight 30% chance of rain on Tuesday 40% chance of rain on Wednesday 90% chance of rain on Thursday 40% chance of rain & snow on Friday 20% chance of rain & snow on Saturday 10% chance of rain & snow on Sunday 20% chance of rain & snow on Monday
Low: 43°F High: 58°F High: 51°F High: 49°F High: 48°F High: 45°F High: 44°F High: 45°F
Low: 40°F Low: 36°F Low: 39°F Low: 32°F Low: 30°F Low: 30°F  
Increasing Clouds Rain Rain Rain Rain & Snow Rain & Snow Rain & Snow Rain & Snow
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Current Conditions at
PASCO - (KPSC)
66°
Clear
as of 5:53 PM PST
Rel. Humidity: 48%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 29.88 in.
Flight Rule: VFR
Wind Data
26 MPH
Gust: 39 MPH
240° Southwest
Cloud Level(s): Clear
Current Conditions at
WALLA WALLA - (KALW)
63°
Cloudy
as of 5:53 PM PST
Rel. Humidity: 59%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 29.91 in.
Flight Rule: VFR
Wind Data
13 MPH
230° Southwest
Cloud Level(s): Broken at 6000ft, Solid Overcast at 7000ft
Current Conditions at
MOSES LAKE - (KMWH)
59°
Clear
as of 5:52 PM PST
Rel. Humidity: 58%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 29.82 in.
Flight Rule: VFR
Wind Data
10 MPH
Gust: 24 MPH
230° Southwest
Cloud Level(s): Clear
Current Conditions at
EPHRATA - (KEPH)
54°
Clear
as of 5:53 PM PST
Rel. Humidity: 58%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 29.80 in.
Flight Rule: VFR
Wind Data
12 MPH
220° Southwest
Cloud Level(s): Clear
Increasing Clouds on Tonight Tonight... Increasing clouds, with a low around 43. Breezy, with a southwest wind 14 to 24 mph, with gusts as high as 41 mph.
30% chance of rain Tuesday Tuesday... A chance of rain before 1pm, then a slight chance of rain after 4pm. Partly sunny, with a high near 58. Southwest wind 15 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.
100% chance of rain Tuesday Night Tuesday Night... Rain, mainly between 10pm and 4am. Low around 40. Windy, with a southwest wind 18 to 23 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 55 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
40% chance of rain Wednesday Wednesday... A 40 percent chance of rain before 10am. Sunny, with a high near 51. Windy, with a southwest wind 24 to 30 mph, with gusts as high as 44 mph.
60% chance of rain Wednesday Night Wednesday Night... Rain likely, mainly after 4am. Mostly cloudy, with a low around 36. South wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
90% chance of rain Thursday Thursday... Rain. High near 49. Chance of precipitation is 90%.
70% chance of rain Thursday Night Thursday Night... Rain likely, mainly before 10pm. Mostly cloudy, with a low around 39. Chance of precipitation is 70%.
40% chance of rain & snow Friday Friday... A chance of rain and snow before 10am, then a chance of rain. Partly sunny, with a high near 48. Chance of precipitation is 40%.
20% chance of rain & snow Friday Night Friday Night... A 20 percent chance of rain before 10pm. Snow level 2300 feet lowering to 1800 feet after midnight . Partly cloudy, with a low around 32.
20% chance of rain & snow Saturday Saturday... A chance of rain, mainly after 4pm. Snow level 1600 feet rising to 2300 feet in the afternoon. Mostly sunny, with a high near 45.
20% chance of rain & snow Saturday Night Saturday Night... A chance of rain and snow. Partly cloudy, with a low around 30.
10% chance of rain & snow Sunday Sunday... A slight chance of rain and snow. Partly sunny, with a high near 44.
20% chance of rain & snow Sunday Night Sunday Night... A chance of rain and snow. Mostly cloudy, with a low around 30.
20% chance of rain & snow Monday Monday... A chance of rain and snow. Partly sunny, with a high near 45.
Current Radar Image


Sun Almanac for Sulphur, Washington
Sunrise: 07:33 AM
Sunset: 4:08 PM
Civil Sunrise:06:58 AM
Civil Sunset: 4:43 PM
Nautical Sunrise: 06:19 AM
Nautical Sunset: 5:21 PM
Astro Sunrise: 05:43 AM
Astro Sunset: 5:58 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.