Grand Coulee, Washington | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Mostly Clear
    47°
    Monday 3/18
    Forecast night icon
    47°
    Mostly Clear
    Hourly
    Night Details
    Mostly clear. Lows in the lower to mid 40s. Light wind.
  • Forecast day icon
    Tuesday
    Sunny
    73°
    Forecast night icon
    Night
    Mostly Clear
    45°
    Tuesday 3/19
    Day
    73°
    Sunny
    Forecast day icon
    Night
    45°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the upper 60s to lower 70s. East wind 5 to 10 mph shifting to the southwest in the afternoon.
    Night Details
    Mostly clear. Lows in the lower 40s. Southwest wind 5 to 10 mph.
  • Forecast day icon
    Wednesday
    Mostly Sunny
    68°
    Forecast night icon
    Night
    Mostly Cloudy
    45°
    Wednesday 3/20
    Day
    68°
    Mostly Sunny
    Forecast day icon
    Night
    45°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the 60s. Southwest wind 5 to 10 mph with gusts up to 20 mph.
    Night Details
    Mostly cloudy. Lows in the upper 30s to lower 40s. Southwest wind 5 to 15 mph with gusts up to 25 mph.
  • Forecast day icon
    Thursday
    Mostly Cloudy
    64°
    Forecast night icon
    Night
    Mostly Cloudy
    44°
    Thursday 3/21
    Day
    64°
    Mostly Cloudy
    Forecast day icon
    Night
    44°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. Highs in the upper 50s to lower 60s. Lows in the upper 30s to lower 40s.
    Night Details
    Mostly cloudy. Highs in the upper 50s to lower 60s. Lows in the upper 30s to lower 40s.
  • Forecast day icon
    Friday
    50% Chance of Rain
    59°
    Forecast night icon
    Night
    50% Chance of Rain
    46°
    Friday 3/22
    Day
    59°
    50% Chance of Rain
    Forecast day icon
    Night
    46°
    50% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. A 50 percent chance of rain. Highs in the mid 50s to lower 60s. Lows in the upper 30s to lower 40s.
    Night Details
    Mostly cloudy. A 50 percent chance of rain. Highs in the mid 50s to lower 60s. Lows in the upper 30s to lower 40s.
  • Forecast day icon
    Saturday
    70% Chance of Rain
    54°
    Forecast night icon
    Night
    50% Chance Frozen Mix
    37°
    Saturday 3/23
    Day
    54°
    70% Chance of Rain
    Forecast day icon
    Night
    37°
    50% Chance Frozen Mix
    Forecast night icon
    Hourly
    Day Details
    Rain likely. Highs in the upper 40s to lower 50s. Chance of precipitation 70 percent.
    Night Details
    Mostly cloudy. A chance of rain or snow. Lows in the lower to mid 30s. Highs in the mid 40s to lower 50s. Chance of precipitation 50 percent.
  • Forecast day icon
    Sunday
    50% Chance Frozen Mix
    51°
    Forecast night icon
    Night
    Mostly Cloudy
    35°
    Sunday 3/24
    Day
    51°
    50% Chance Frozen Mix
    Forecast day icon
    Night
    35°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. A chance of rain or snow. Lows in the lower to mid 30s. Highs in the mid 40s to lower 50s. Chance of precipitation 50 percent.
    Night Details
    Mostly cloudy with a chance of rain or snow. Lows in the lower to mid 30s. Chance of precipitation 20 percent.
  • Forecast day icon
    Monday
    40% Chance Frozen Mix
    52°
    Forecast night icon
    Night
    Partly Cloudy
    35°
    Monday 3/25
    Day
    52°
    40% Chance Frozen Mix
    Forecast day icon
    Night
    35°
    Partly Cloudy
    Forecast night icon
    Day Details
    Partly sunny with a chance of rain or snow. Highs in the upper 40s to lower 50s. Chance of precipitation 40 percent.
    Night Details
    Partly cloudy. Low temperature around 35F. Dew point will be around 32F with an average humidity of 70%. Winds will be 1 mph from the E.
  • Forecast day icon
    Tuesday
    Cloudy
    54°
    Forecast night icon
    Night
    Cloudy
    37°
    Tuesday 3/26
    Day
    54°
    Cloudy
    Forecast day icon
    Night
    37°
    Cloudy
    Forecast night icon
    Day Details
    Cloudy. High temperature around 54F. Dew point will be around 33F with an average humidity of 60%. Winds will be 2 mph from the SW.
    Night Details
    Cloudy. Low temperature around 37F. Dew point will be around 34F with an average humidity of 71%. Winds will be 2 mph from the E.
  • Forecast day icon
    Wednesday
    30% Chance of Rain
    55°
    Forecast night icon
    Night
    Cloudy
    38°
    Wednesday 3/27
    Day
    55°
    30% Chance of Rain
    Forecast day icon
    Night
    38°
    Cloudy
    Forecast night icon
    Day Details
    Cloudy with a slight chance of rain. Chance of precipitation 30%. High temperature around 55F. Dew point will be around 35F with an average humidity of 62%. Winds will be 2 mph from the SE.
    Night Details
    Cloudy. Low temperature around 38F. Dew point will be around 35F with an average humidity of 70%. Winds will be 2 mph from the E.