10-Day Weather Forecast - Key Biscayne, FL

Mostly sunny. Highs in the lower 80s. North winds 5 to 10 mph becoming east in the afternoon.

Mostly clear. Lows in the lower 70s. East winds 5 to 10 mph.

Mostly sunny. Highs in the lower 80s. Northeast winds 10 to 15 mph.

Partly cloudy. Lows around 70. Northeast winds 15 to 20 mph.

Partly cloudy and breezy. Highs in the upper 70s. Lows around 70.

Partly cloudy and breezy. Highs in the upper 70s. Lows around 70.

Partly cloudy and breezy. Highs in the upper 70s. Lows around 70.

Partly cloudy and breezy. Highs in the upper 70s. Lows around 70.

Sunny. Highs in the upper 70s.

Partly cloudy. Lows in the upper 60s. Highs in the upper 70s.

Partly cloudy. Lows in the upper 60s. Highs in the upper 70s.

Mostly clear. Lows in the upper 60s. Highs in the upper 70s.

Mostly clear. Lows in the upper 60s. Highs in the upper 70s.

Clear. Low temperature around 72F. Dew point will be around 65F with an average humidity of 74%. Winds will be 5 mph from the E.

Sunny. High temperature around 78F. Dew point will be around 64F with an average humidity of 69%. Winds will be 5 mph from the E.

Clear. Low temperature around 71F. Dew point will be around 64F with an average humidity of 73%. Winds will be 4 mph from the E.

Sunny. High temperature around 78F. Dew point will be around 64F with an average humidity of 70%. Winds will be 3 mph from the E.

Clear. Low temperature around 71F. Dew point will be around 64F with an average humidity of 74%. Winds will be 2 mph from the E.