Newcastle, Washington | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Mostly Clear
    45°
    Sunday 5/19
    Forecast night icon
    45°
    Mostly Clear
    Hourly
    Night Details
    Mostly clear. Low temperature around 45F. Dew point will be around 35F with an average humidity of 67%. Winds will be 3 mph from the NW.
  • Forecast day icon
    Monday
    Mostly Sunny
    60°
    Forecast night icon
    Night
    Chance of Rain
    45°
    Monday 5/20
    Day
    60°
    Mostly Sunny
    Forecast day icon
    Night
    45°
    Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the mid to upper 60s. Light wind.
    Night Details
    Mostly cloudy until early morning then a slight chance of rain in the morning. Lows near 50. Light wind.
  • Forecast day icon
    Tuesday
    Rain
    49°
    Forecast night icon
    Night
    Rain
    43°
    Tuesday 5/21
    Day
    49°
    Rain
    Forecast day icon
    Night
    43°
    Rain
    Forecast night icon
    Hourly
    Day Details
    Rain. Rainfall amounts a half inch to one inch possible. Highs in the 50s. South wind to 10 mph.
    Night Details
    Showers in the evening then showers likely after midnight. Rainfall amounts a half inch to one inch possible. Lows in the 40s. South wind around 10 mph.
  • Forecast day icon
    Wednesday
    Chance of Rain Showers
    52°
    Forecast night icon
    Night
    Partly Cloudy
    44°
    Wednesday 5/22
    Day
    52°
    Chance of Rain Showers
    Forecast day icon
    Night
    44°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with showers likely in the morning then mostly cloudy with a chance of showers in the afternoon. Rainfall amounts a tenth to a quarter of an inch possible. Highs near 60. South wind to 10 mph in the morning becoming light.
    Night Details
    Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid to upper 40s.
  • Forecast day icon
    Thursday
    Partly Sunny
    59°
    Forecast night icon
    Night
    Chance of Rain Showers
    47°
    Thursday 5/23
    Day
    59°
    Partly Sunny
    Forecast day icon
    Night
    47°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Highs in the mid to upper 60s.
    Night Details
    Mostly cloudy. A slight chance of showers after midnight. Lows near 50.
  • Forecast day icon
    Friday
    Chance of Rain Showers
    52°
    Forecast night icon
    Night
    Chance of Rain Showers
    43°
    Friday 5/24
    Day
    52°
    Chance of Rain Showers
    Forecast day icon
    Night
    43°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Showers likely in the morning then mostly cloudy with a chance of showers in the afternoon. Highs in the lower 60s.
    Night Details
    Mostly cloudy with a chance of showers. Lows in the mid to upper 40s.
  • Forecast day icon
    Saturday
    Chance of Rain Showers
    53°
    Forecast night icon
    Night
    Chance of Rain Showers
    44°
    Saturday 5/25
    Day
    53°
    Chance of Rain Showers
    Forecast day icon
    Night
    44°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a chance of showers. Highs in the lower 60s.
    Night Details
    Mostly cloudy with a slight chance of showers. Lows in the mid to upper 40s.
  • Forecast day icon
    Sunday
    Chance of Rain Showers
    54°
    Forecast night icon
    Night
    Partly Cloudy
    46°
    Sunday 5/26
    Day
    54°
    Chance of Rain Showers
    Forecast day icon
    Night
    46°
    Partly Cloudy
    Forecast night icon
    Day Details
    Partly sunny. A slight chance of showers in the morning then a chance of showers in the afternoon. Highs in the lower to mid 60s.
    Night Details
    Partly cloudy. Low temperature around 46F. Dew point will be around 41F with an average humidity of 72%. Winds will be 3 mph from the SE.
  • Forecast day icon
    Monday
    Mostly Sunny
    67°
    Forecast night icon
    Night
    Partly Cloudy
    49°
    Monday 5/27
    Day
    67°
    Mostly Sunny
    Forecast day icon
    Night
    49°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 67F. Dew point will be around 42F with an average humidity of 51%. Winds will be 2 mph from the W.
    Night Details
    Partly cloudy. Low temperature around 49F. Dew point will be around 43F with an average humidity of 67%. Winds will be 2 mph from the SE.
  • Forecast day icon
    Tuesday
    Partly Cloudy
    71°
    Forecast night icon
    Night
    30% Chance of Rain
    51°
    Tuesday 5/28
    Day
    71°
    Partly Cloudy
    Forecast day icon
    Night
    51°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy. High temperature around 71F. Dew point will be around 44F with an average humidity of 48%. Winds will be 3 mph from the W.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 51F. Dew point will be around 44F with an average humidity of 65%. Winds will be 2 mph from the SE.
  • Forecast day icon
    Wednesday
    40% Chance of Rain
    64°
    Forecast night icon
    Night
    40% Chance of Rain
    49°
    Wednesday 5/29
    Day
    64°
    40% Chance of Rain
    Forecast day icon
    Night
    49°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 64F. Dew point will be around 45F with an average humidity of 56%. Winds will be 3 mph from the SW.
    Night Details
    Mostly cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 49F. Dew point will be around 44F with an average humidity of 71%. Winds will be 3 mph from the S.