Costa Mesa, California | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Monday
    Partly Cloudy
    67°
    Forecast night icon
    Night
    Mostly Cloudy
    61°
    Monday 5/13
    Day
    67°
    Partly Cloudy
    Forecast day icon
    Night
    61°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Cloudy with patchy fog this morning. . . Becoming partly cloudy. Highs 66 to 70. Areas of winds south to 10 mph.
    Night Details
    Mostly cloudy. Patchy fog overnight. Lows 54 to 57. Areas of winds southwest 10 mph in the evening becoming light.
  • Forecast day icon
    Tuesday
    Partly Cloudy
    68°
    Forecast night icon
    Night
    Mostly Cloudy
    60°
    Tuesday 5/14
    Day
    68°
    Partly Cloudy
    Forecast day icon
    Night
    60°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with patchy fog in the morning. . . Becoming partly cloudy. Highs 66 to 70. Light winds becoming southwest 10 mph in the afternoon.
    Night Details
    Mostly cloudy. Patchy fog overnight. Lows 53 to 57. Areas of winds southwest 10 mph in the evening becoming light.
  • Forecast day icon
    Wednesday
    Partly Cloudy
    68°
    Forecast night icon
    Night
    Cloudy
    60°
    Wednesday 5/15
    Day
    68°
    Partly Cloudy
    Forecast day icon
    Night
    60°
    Cloudy
    Forecast night icon
    Hourly
    Day Details
    Cloudy in the morning. . . Becoming partly cloudy. Patchy fog in the morning. Highs 66 to 69. Light winds becoming southwest 10 to 15 mph in the afternoon.
    Night Details
    Cloudy. Patchy fog overnight. Lows 53 to 56.
  • Forecast day icon
    Thursday
    Partly Cloudy
    67°
    Forecast night icon
    Night
    Partly Cloudy
    61°
    Thursday 5/16
    Day
    67°
    Partly Cloudy
    Forecast day icon
    Night
    61°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Cloudy in the morning. . . Becoming partly cloudy. Patchy fog in the morning. Highs around 66 at the beaches to 70 farther inland and near higher coastal terrain.
    Night Details
    Partly cloudy in the evening. . . Becoming cloudy overnight with patchy fog. Lows 53 to 57.
  • Forecast day icon
    Friday
    Partly Cloudy
    69°
    Forecast night icon
    Night
    Partly Cloudy
    61°
    Friday 5/17
    Day
    69°
    Partly Cloudy
    Forecast day icon
    Night
    61°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Cloudy in the morning. . . Becoming partly cloudy. Patchy fog in the morning. Highs 67 to 71.
    Night Details
    Partly cloudy in the evening. . . Becoming cloudy overnight with patchy fog. Lows 54 to 57.
  • Forecast day icon
    Saturday
    Partly Cloudy
    68°
    Forecast night icon
    Night
    Partly Cloudy
    60°
    Saturday 5/18
    Day
    68°
    Partly Cloudy
    Forecast day icon
    Night
    60°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Cloudy in the morning. . . Becoming partly cloudy. Patchy fog in the morning. Highs 67 to 71.
    Night Details
    Partly cloudy in the evening. . . Becoming cloudy overnight with patchy fog. Lows 53 to 57.
  • Forecast day icon
    Sunday
    Mostly Cloudy
    67°
    Forecast night icon
    Night
    Mostly Cloudy
    59°
    Sunday 5/19
    Day
    67°
    Mostly Cloudy
    Forecast day icon
    Night
    59°
    Mostly Cloudy
    Forecast night icon
    Day Details
    Cloudy in the morning. . . Becoming mostly cloudy. Patchy fog in the morning. Highs around 70.
    Night Details
    Mostly cloudy. Low temperature around 59F. Dew point will be around 51F with an average humidity of 72%. Winds will be 5 mph from the W.
  • Forecast day icon
    Monday
    Partly Cloudy
    69°
    Forecast night icon
    Night
    Clear
    60°
    Monday 5/20
    Day
    69°
    Partly Cloudy
    Forecast day icon
    Night
    60°
    Clear
    Forecast night icon
    Day Details
    Partly cloudy. High temperature around 69F. Dew point will be around 52F with an average humidity of 61%. Winds will be 7 mph from the SW.
    Night Details
    Clear. Low temperature around 60F. Dew point will be around 53F with an average humidity of 72%. Winds will be 4 mph from the SW.
  • Forecast day icon
    Tuesday
    Partly Cloudy
    67°
    Forecast night icon
    Night
    Partly Cloudy
    61°
    Tuesday 5/21
    Day
    67°
    Partly Cloudy
    Forecast day icon
    Night
    61°
    Partly Cloudy
    Forecast night icon
    Day Details
    Partly cloudy. High temperature around 67F. Dew point will be around 53F with an average humidity of 61%. Winds will be 6 mph from the SW.
    Night Details
    Partly cloudy. Low temperature around 61F. Dew point will be around 53F with an average humidity of 72%. Winds will be 4 mph from the SW.
  • Forecast day icon
    Wednesday
    Mostly Cloudy
    68°
    Forecast night icon
    Night
    Partly Cloudy
    61°
    Wednesday 5/22
    Day
    68°
    Mostly Cloudy
    Forecast day icon
    Night
    61°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly cloudy. High temperature around 68F. Dew point will be around 53F with an average humidity of 61%. Winds will be 6 mph from the SW.
    Night Details
    Partly cloudy. Low temperature around 61F. Dew point will be around 54F with an average humidity of 71%. Winds will be 4 mph from the SW.