10-Day Weather Forecast - Costa Mesa, CA

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  • 71|57°F
    Partly Cloudy
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    Today

    71°F

    Partly cloudy this morning. . . Becoming mostly sunny. Highs 68 to 73. Areas of winds southwest to 10 mph becoming west with gusts to 25 mph this afternoon.

    Tonight

    57°F

    Partly cloudy. Lows 51 to 54. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.

    Hourly details
  • Day

    69°F

    Patchy fog in the morning. Partly cloudy. Highs around 68 at the beaches to 69 to 72 farther inland and near higher coastal terrain. Areas of winds north to 10 mph becoming southwest with gusts to 25 mph in the afternoon.

    Night

    58°F

    Partly cloudy with a slight chance of showers in the evening then mostly clear overnight. Lows 51 to 54. Areas of winds northwest 10 to 15 mph. Gusts to 25 mph in the evening. Chance of measurable precipitation 20 percent.

    Hourly details
  • Day

    67°F

    Partly cloudy. Highs 66 to 71. Areas of winds northwest 10 to 20 mph. Gusts to 25 mph. . . Becoming 30 mph in the afternoon.

    Night

    57°F

    Partly cloudy in the evening. . . Becoming mostly clear. Lows 51 to 54.

    Hourly details
  • Day

    71°F

    Partly cloudy. Highs around 69 at the beaches to 70 to 74 farther inland and near higher coastal terrain.

    Night

    59°F

    Partly cloudy. Lows around 54.

    Hourly details
  • Day

    70°F

    Partly cloudy. Highs 67 to 72.

    Night

    60°F

    Partly cloudy. Lows 53 to 56.

    Hourly details
  • Weekend Weather

  • Day

    65°F

    Mostly cloudy in the morning. . . Becoming partly cloudy. Highs around 66 at the beaches to 70 farther inland and near higher coastal terrain.

    Night

    58°F

    Partly cloudy. Lows 52 to 55.

    Hourly details
  • Day

    65°F

    Partly cloudy. Highs 66 to 71.

    Night

    57°F

    Partly cloudy. Low temperature around 57F. Dew point will be around 54F with an average humidity of 84%. Winds will be 4 mph from the W.

  • Day

    67°F

    Cloudy. High temperature around 67F. Dew point will be around 54F with an average humidity of 70%. Winds will be 5 mph from the SW.

    Night

    58°F

    Mostly cloudy. Low temperature around 58F. Dew point will be around 55F with an average humidity of 83%. Winds will be 3 mph from the SW.

  • Day

    68°F

    Mostly cloudy. High temperature around 68F. Dew point will be around 54F with an average humidity of 66%. Winds will be 6 mph from the SW.

    Night

    59°F

    Clear. Low temperature around 59F. Dew point will be around 55F with an average humidity of 79%. Winds will be 4 mph from the W.

  • Day

    69°F

    Sunny. High temperature around 69F. Dew point will be around 53F with an average humidity of 61%. Winds will be 5 mph from the SW.

    Night

    60°F

    Clear. Low temperature around 60F. Dew point will be around 55F with an average humidity of 76%. Winds will be 3 mph from the SW.