10-Day Weather Forecast - Riverhead, NY

Partly sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 80s. Northwest winds 5 to 10 mph. Chance of rain 20 percent.

Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 60s. Northwest winds 5 to 10 mph.

Partly sunny. A slight chance of showers in the afternoon. Highs in the upper 70s. North winds 5 to 10 mph. Chance of rain 20 percent.

Mostly cloudy with a 50 percent chance of showers. Lows in the lower 60s.

Mostly sunny. Highs in the lower 70s.

Mostly clear. Lows around 60.

Sunny. Highs in the mid 70s.

Mostly clear. Lows in the lower 60s.

Sunny. Highs in the mid 70s.

Partly cloudy. Lows in the lower 60s.

Mostly sunny. Highs in the mid 70s.

Mostly cloudy. Lows in the upper 60s.

Mostly sunny. Highs in the upper 70s.

Mostly clear with a 55% chance for rain and thunderstorms. Low temperature around 69F. Dew point will be around 65F with an average humidity of 81%. Winds will be 6 mph from the W.

Mostly sunny. High temperature around 78F. Dew point will be around 63F with an average humidity of 68%. Winds will be 5 mph from the W.

Mostly clear. Low temperature around 65F. Dew point will be around 61F with an average humidity of 76%. Winds will be 3 mph from the NW.

Mostly sunny. High temperature around 74F. Dew point will be around 60F with an average humidity of 68%. Winds will be 4 mph from the NE.

Mostly clear. Low temperature around 64F. Dew point will be around 60F with an average humidity of 80%. Winds will be 2 mph from the E.