Grand Coulee, Washington | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Thursday
    Mostly Sunny
    60°
    Forecast night icon
    Night
    Mostly Clear
    40°
    Thursday 4/18
    Day
    60°
    Mostly Sunny
    Forecast day icon
    Night
    40°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. High temperature around 60F. Dew point will be around 29F with an average humidity of 36%. Winds will be 4 mph from the NE.
    Night Details
    Mostly clear. Lows in the 30s. Northeast wind 5 to 15 mph. Gusts up to 25 mph overnight.
  • Forecast day icon
    Friday
    Windy
    62°
    Forecast night icon
    Night
    Windy
    44°
    Friday 4/19
    Day
    62°
    Windy
    Forecast day icon
    Night
    44°
    Windy
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the mid 50s to mid 60s. Windy. Northeast wind 15 to 25 mph with gusts up to 40 mph.
    Night Details
    Mostly clear. Lows in the mid to upper 30s. Windy. Northeast wind 15 to 25 mph. Gusts up to 30 mph increasing to 40 mph overnight.
  • Forecast day icon
    Saturday
    Sunny
    67°
    Forecast night icon
    Night
    50% Chance Rain Showers
    47°
    Saturday 4/20
    Day
    67°
    Sunny
    Forecast day icon
    Night
    47°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Sunny warmer. Highs in the 60s. Breezy. Northeast wind 10 to 20 mph with gusts up to 40 mph.
    Night Details
    Mostly cloudy with a 50 percent chance of rain showers. Lows in the upper 30s to lower 40s. Breezy. Southwest wind 10 to 20 mph with gusts up to 35 mph.
  • Forecast day icon
    Sunday
    Windy
    62°
    Forecast night icon
    Night
    Mostly Clear
    40°
    Sunday 4/21
    Day
    62°
    Windy
    Forecast day icon
    Night
    40°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Windy. Sunny with a 20 percent chance of rain showers. Highs in the upper 50s to lower 60s.
    Night Details
    Mostly clear. Lows in the 30s. Highs in the lower to mid 60s.
  • Forecast day icon
    Monday
    Mostly Sunny
    66°
    Forecast night icon
    Night
    Partly Cloudy
    43°
    Monday 4/22
    Day
    66°
    Mostly Sunny
    Forecast day icon
    Night
    43°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Lows in the 30s. Highs in the lower to mid 60s.
    Night Details
    Partly cloudy. Lows in the upper 30s to upper 40s. Highs in the mid 60s to lower 70s.
  • Forecast day icon
    Tuesday
    Partly Cloudy
    71°
    Forecast night icon
    Night
    Partly Cloudy
    47°
    Tuesday 4/23
    Day
    71°
    Partly Cloudy
    Forecast day icon
    Night
    47°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Lows in the upper 30s to upper 40s. Highs in the mid 60s to lower 70s.
    Night Details
    Partly cloudy. Lows in the upper 30s to upper 40s. Highs in the mid 60s to lower 70s.
  • Forecast day icon
    Wednesday
    Partly Cloudy
    69°
    Forecast night icon
    Night
    Partly Cloudy
    49°
    Wednesday 4/24
    Day
    69°
    Partly Cloudy
    Forecast day icon
    Night
    49°
    Partly Cloudy
    Forecast night icon
    Day Details
    Partly cloudy. Lows in the upper 30s to upper 40s. Highs in the mid 60s to lower 70s.
    Night Details
    Partly cloudy. Lows in the upper 30s to upper 40s. Highs in the mid 60s to lower 70s.
  • Forecast day icon
    Thursday
    Partly Cloudy
    67°
    Forecast night icon
    Night
    Cloudy
    50°
    Thursday 4/25
    Day
    67°
    Partly Cloudy
    Forecast day icon
    Night
    50°
    Cloudy
    Forecast night icon
    Day Details
    Partly cloudy. Lows in the upper 30s to upper 40s. Highs in the mid 60s to lower 70s.
    Night Details
    Cloudy. Low temperature around 50F. Dew point will be around 40F with an average humidity of 56%. Winds will be 2 mph from the SW.
  • Forecast day icon
    Friday
    Cloudy
    68°
    Forecast night icon
    Night
    Mostly Cloudy
    49°
    Friday 4/26
    Day
    68°
    Cloudy
    Forecast day icon
    Night
    49°
    Mostly Cloudy
    Forecast night icon
    Day Details
    Cloudy. High temperature around 68F. Dew point will be around 42F with an average humidity of 48%. Winds will be 3 mph from the W.
    Night Details
    Mostly cloudy. Low temperature around 49F. Dew point will be around 42F with an average humidity of 59%. Winds will be 2 mph from the W.
  • Forecast day icon
    Saturday
    Mostly Sunny
    69°
    Forecast night icon
    Night
    Partly Cloudy
    48°
    Saturday 4/27
    Day
    69°
    Mostly Sunny
    Forecast day icon
    Night
    48°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 69F. Dew point will be around 42F with an average humidity of 48%. Winds will be 3 mph from the W.
    Night Details
    Partly cloudy. Low temperature around 48F. Dew point will be around 40F with an average humidity of 56%. Winds will be 3 mph from the SW.