National Weather Service forecast
Grand Coulee, Washington Weather
Grand Coulee 7-Day Forecast
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Tonight38°FPartly Cloudy1% chance of precipitation
Partly cloudy, with a low around 38. Northeast wind around 2 mph.
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Wednesday56°FSunny2% chance of precipitation
Sunny. High near 56, with temperatures falling to around 49 in the afternoon. South wind 0 to 6 mph.
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Wednesday Night39°FChance Rain Showers40% chance of precipitation
A chance of rain showers between 10pm and 4am. Mostly cloudy. Low around 39, with temperatures rising to around 41 overnight. Southeast wind around 5 mph. Chance of precipitation is 40%.
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Thursday55°FMostly Sunny11% chance of precipitation
Mostly sunny, with a high near 55. Southeast wind around 3 mph.
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Thursday Night38°FPartly Cloudy8% chance of precipitation
Partly cloudy, with a low around 38. Southeast wind around 6 mph.
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Friday55°FMostly Cloudy8% chance of precipitation
Mostly cloudy, with a high near 55.
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Friday Night41°FMostly Cloudy9% chance of precipitation
Mostly cloudy, with a low around 41.
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Saturday60°FPartly Sunny6% chance of precipitation
Partly sunny, with a high near 60.
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Saturday Night43°FMostly Cloudy then Slight Chance Rain Showers15% chance of precipitation
A slight chance of rain showers after 4am. Mostly cloudy, with a low around 43. Chance of precipitation is 20%.
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Sunday60°FSlight Chance Rain Showers then Partly Sunny15% chance of precipitation
A slight chance of rain showers before 10am. Partly sunny, with a high near 60. Chance of precipitation is 20%.
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Sunday Night40°FMostly Cloudy1% chance of precipitation
Mostly cloudy, with a low around 40.
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Monday57°FPartly Sunny then Slight Chance Rain Showers15% chance of precipitation
A slight chance of rain showers after 4pm. Partly sunny, with a high near 57. Chance of precipitation is 20%.
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Monday Night41°FChance Rain Showers32% chance of precipitation
A chance of rain showers. Mostly cloudy, with a low around 41. Chance of precipitation is 30%.
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Tuesday59°FChance Rain Showers32% chance of precipitation
A chance of rain showers. Mostly cloudy, with a high near 59. Chance of precipitation is 30%.
Issued by the National Weather Service (OTX office), updated .
Grand Coulee Hourly Forecast
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Grand Coulee Weather Radar
Open the full radar for Grand CouleeAbout Grand Coulee
- Population (2020 Census)
- 972
- Coordinates
- 47.939, -119.002
- Elevation
- 1,627 ft
- NWS forecast office
- OTX
- Time zone
- America/Los Angeles
- Sunrise today
- 6:43 AM PST
- Sunset today
- 4:35 PM PST
- Daylight today
- 9 h 51 min
Grand Coulee Weather Questions
What is the weather forecast for Grand Coulee, Washington?
Tonight: Partly cloudy, with a low around 38. Northeast wind around 2 mph. Wednesday: Sunny. High near 56, with temperatures falling to around 49 in the afternoon. South wind 0 to 6 mph.
Will it rain or snow in Grand Coulee this week?
The best chance of precipitation is Wednesday Night at 40%. Periods with a 30% chance or more: Wednesday Night (40%), Monday Night (32%), Tuesday (32%).
How warm and how cold will it get in Grand Coulee this week?
The warmest day is Saturday, with a high near 60°F. The coldest night is Tonight, with a low near 38°F.
What time are sunrise and sunset in Grand Coulee today?
Sunrise is at 6:43 AM PST and sunset is at 4:35 PM PST, for 9 h 51 min of daylight.
Weather near Grand Coulee
- Coulee Dam 2 mi
- Electric City 3 mi
- Elmer City 5 mi
- Nespelem Community 16 mi
- Nespelem 16 mi
- Almira 16 mi
- Keller 17 mi
- Hartline 18 mi