10-Day Weather Forecast - Costa Mesa, CA

As of

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  • 69|59°F
    Partly Cloudy

    Today

    69°F

    Partly cloudy with a slight chance of showers. Highs 66 to 70. Light winds becoming west 10 mph in the afternoon. Chance of measurable precipitation 20 percent.

    Tonight

    59°F

    Partly cloudy in the evening..becoming mostly clear. Lows 54 to 57. Areas of winds west to 10 mph in the evening becoming light.

    Hourly details
  • 72|61°F
    Mostly Sunny

    Day

    72°F

    Mostly sunny. Highs 72 to 76. Areas of winds north to 10 mph becoming west with gusts to 25 mph in the afternoon.

    Night

    61°F

    Mostly clear. Lows 57 to 61. Areas of winds west 10 mph in the evening becoming light.

    Hourly details
  • 74|59°F
    Mostly Sunny

    Day

    74°F

    Mostly sunny. Highs 75 to 79.

    Night

    59°F

    Mostly clear. Lows 58 to 62.

    Hourly details
  • 75|58°F
    Mostly Sunny

    Day

    75°F

    Mostly sunny. Highs around 77 at the beaches to 80 farther inland and near higher coastal terrain.

    Night

    58°F

    Mostly clear. Lows around 60.

    Hourly details
  • 75|58°F
    Partly Cloudy

    Day

    75°F

    Partly cloudy. Highs 75 to 79.

    Night

    58°F

    Partly cloudy. Lows around 60.

    Hourly details
  • 72|56°F
    Partly Cloudy

    Day

    72°F

    Partly cloudy. Highs 73 to 78.

    Night

    56°F

    Partly cloudy. Lows around 60.

    Hourly details
  • 71|58°F
    Partly Cloudy

    Day

    71°F

    Partly cloudy. Highs 70 to 74.

    Night

    58°F

    Partly cloudy. Low temperature around 58F. Dew point will be around 55F with an average humidity of 81%. Winds will be 4 mph from the E.

  • 71|62°F
    Cloudy

    Day

    71°F

    Cloudy. High temperature around 71F. Dew point will be around 60F with an average humidity of 74%. Winds will be 4 mph from the SSW.

    Night

    62°F

    Cloudy. Low temperature around 62F. Dew point will be around 59F with an average humidity of 81%. Winds will be 3 mph from the ESE.

  • 72|63°F
    Partly Cloudy

    Day

    72°F

    Partly cloudy. High temperature around 72F. Dew point will be around 60F with an average humidity of 71%. Winds will be 7 mph from the SW.

    Night

    63°F

    Mostly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 63F. Dew point will be around 59F with an average humidity of 79%. Winds will be 6 mph from the N.