Newcastle, Washington | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Saturday
    Rain
    55°
    Forecast night icon
    Night
    Chance of Storms
    42°
    Saturday 5/18
    Day
    55°
    Rain
    Forecast day icon
    Night
    42°
    Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with likely rain. Chance of precipitation 100%. High temperature around 55F. Dew point will be around 37F with an average humidity of 80%. Winds will be 4 mph from the N.
    Night Details
    Cloudy with a chance of showers and a slight chance of thunderstorms in the evening then mostly cloudy with a slight chance of showers late in the evening. Mostly cloudy after midnight. Patchy fog late in the night. Lows in the lower to mid 40s. Light wind.
  • Forecast day icon
    Sunday
    Chance of Rain Showers
    55°
    Forecast night icon
    Night
    Mostly Clear
    42°
    Sunday 5/19
    Day
    55°
    Chance of Rain Showers
    Forecast day icon
    Night
    42°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Patchy fog in the morning. Partly sunny with a slight chance of showers. Highs in the lower to mid 60s. Light wind.
    Night Details
    Mostly clear. Lows in the lower to mid 40s. Light wind.
  • Forecast day icon
    Monday
    Mostly Sunny
    61°
    Forecast night icon
    Night
    Partly Cloudy
    46°
    Monday 5/20
    Day
    61°
    Mostly Sunny
    Forecast day icon
    Night
    46°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the mid 60s to lower 70s. Light wind.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 40s to lower 50s. Light wind.
  • Forecast day icon
    Tuesday
    Chance of Rain
    50°
    Forecast night icon
    Night
    Rain
    44°
    Tuesday 5/21
    Day
    50°
    Chance of Rain
    Forecast day icon
    Night
    44°
    Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of rain in the morning then mostly cloudy with rain at times in the afternoon. Highs in the mid to upper 50s.
    Night Details
    Rain at times in the evening then showers likely after midnight. Lows in the upper 40s.
  • Forecast day icon
    Wednesday
    Chance of Rain Showers
    52°
    Forecast night icon
    Night
    Chance of Rain Showers
    43°
    Wednesday 5/22
    Day
    52°
    Chance of Rain Showers
    Forecast day icon
    Night
    43°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with showers likely in the morning then partly sunny with a chance of showers in the afternoon. Highs near 60.
    Night Details
    Mostly cloudy. A chance of showers in the evening then a slight chance of showers after midnight. Lows in the mid to upper 40s.
  • Forecast day icon
    Thursday
    Chance of Rain Showers
    54°
    Forecast night icon
    Night
    Chance of Rain Showers
    46°
    Thursday 5/23
    Day
    54°
    Chance of Rain Showers
    Forecast day icon
    Night
    46°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a slight chance of showers. Highs in the mid 60s.
    Night Details
    Mostly cloudy with a chance of showers. Lows in the upper 40s.
  • Forecast day icon
    Friday
    Chance of Rain Showers
    51°
    Forecast night icon
    Night
    Chance of Rain Showers
    45°
    Friday 5/24
    Day
    51°
    Chance of Rain Showers
    Forecast day icon
    Night
    45°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a chance of showers. Highs in the lower to mid 60s.
    Night Details
    Mostly cloudy. A chance of showers in the evening then a slight chance of showers after midnight. Lows in the mid to upper 40s.
  • Forecast day icon
    Saturday
    Chance of Rain Showers
    60°
    Forecast night icon
    Night
    30% Chance of Rain
    46°
    Saturday 5/25
    Day
    60°
    Chance of Rain Showers
    Forecast day icon
    Night
    46°
    30% Chance of Rain
    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
    Cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 46F. Dew point will be around 41F with an average humidity of 71%. Winds will be 3 mph from the S.
  • Forecast day icon
    Sunday
    30% Chance of Rain
    61°
    Forecast night icon
    Night
    Partly Cloudy
    47°
    Sunday 5/26
    Day
    61°
    30% Chance of Rain
    Forecast day icon
    Night
    47°
    Partly Cloudy
    Forecast night icon
    Day Details
    Cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 61F. Dew point will be around 40F with an average humidity of 56%. Winds will be 3 mph from the SW.
    Night Details
    Partly cloudy. Low temperature around 47F. Dew point will be around 41F with an average humidity of 68%. Winds will be 3 mph from the S.
  • Forecast day icon
    Monday
    Mostly Cloudy
    64°
    Forecast night icon
    Night
    Partly Cloudy
    48°
    Monday 5/27
    Day
    64°
    Mostly Cloudy
    Forecast day icon
    Night
    48°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly cloudy. High temperature around 64F. Dew point will be around 41F with an average humidity of 54%. Winds will be 4 mph from the W.
    Night Details
    Partly cloudy. Low temperature around 48F. Dew point will be around 42F with an average humidity of 67%. Winds will be 2 mph from the SE.