Holtsville, New York | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Friday
    Sunny
    56°
    Forecast night icon
    Night
    Clear
    40°
    Friday 4/26
    Day
    56°
    Sunny
    Forecast day icon
    Night
    40°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. High temperature around 56F. Dew point will be around 32F with an average humidity of 54%. Winds will be 5 mph from the S.
    Night Details
    Clear. Lows around 40. South winds 5 to 10 mph.
  • Forecast day icon
    Saturday
    Mostly Sunny
    56°
    Forecast night icon
    Night
    50% Chance Rain Showers
    45°
    Saturday 4/27
    Day
    56°
    Mostly Sunny
    Forecast day icon
    Night
    45°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the upper 50s. South winds 10 to 15 mph. Gusts up to 25 mph in the afternoon.
    Night Details
    Mostly cloudy. A slight chance of showers in the evening then a chance of showers after midnight. Lows in the mid 40s. Southwest winds 10 to 15 mph. Chance of rain 50 percent.
  • Forecast day icon
    Sunday
    50% Chance Rain Showers
    64°
    Forecast night icon
    Night
    Mostly Cloudy
    55°
    Sunday 4/28
    Day
    64°
    50% Chance Rain Showers
    Forecast day icon
    Night
    55°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of showers in the morning then partly sunny in the afternoon. Highs in the mid 60s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50 percent.
    Night Details
    Mostly cloudy. Lows in the lower 50s. Southwest winds 5 to 10 mph becoming west after midnight.
  • Forecast day icon
    Monday
    Mostly Sunny
    74°
    Forecast night icon
    Night
    Mostly Cloudy
    50°
    Monday 4/29
    Day
    74°
    Mostly Sunny
    Forecast day icon
    Night
    50°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the mid 70s.
    Night Details
    Mostly cloudy. Lows in the lower 50s.
  • Forecast day icon
    Tuesday
    Partly Sunny
    65°
    Forecast night icon
    Night
    30% Chance Rain Showers
    49°
    Tuesday 4/30
    Day
    65°
    Partly Sunny
    Forecast day icon
    Night
    49°
    30% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny in the morning then becoming mostly cloudy. Highs in the lower 60s.
    Night Details
    Mostly cloudy with a 30 percent chance of showers. Lows around 50.
  • Forecast day icon
    Wednesday
    Partly Sunny
    66°
    Forecast night icon
    Night
    Partly Cloudy
    49°
    Wednesday 5/1
    Day
    66°
    Partly Sunny
    Forecast day icon
    Night
    49°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Highs in the mid 60s.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. Lows around 50.
  • Forecast day icon
    Thursday
    Partly Sunny
    64°
    Forecast night icon
    Night
    Mostly Cloudy
    52°
    Thursday 5/2
    Day
    64°
    Partly Sunny
    Forecast day icon
    Night
    52°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Highs in the lower 60s.
    Night Details
    Mostly cloudy. Lows in the lower 50s.
  • Forecast day icon
    Friday
    30% Chance Rain Showers
    65°
    Forecast night icon
    Night
    30% Chance of Rain
    48°
    Friday 5/3
    Day
    65°
    30% Chance Rain Showers
    Forecast day icon
    Night
    48°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly sunny. A chance of showers in the afternoon. Highs in the mid 60s. Chance of rain 30 percent.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 48F. Dew point will be around 40F with an average humidity of 62%. Winds will be 6 mph from the N.
  • Forecast day icon
    Saturday
    Sunny
    63°
    Forecast night icon
    Night
    Clear
    47°
    Saturday 5/4
    Day
    63°
    Sunny
    Forecast day icon
    Night
    47°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 63F. Dew point will be around 38F with an average humidity of 48%. Winds will be 5 mph from the N.
    Night Details
    Clear. Low temperature around 47F. Dew point will be around 34F with an average humidity of 53%. Winds will be 4 mph from the NW.
  • Forecast day icon
    Sunday
    Sunny
    63°
    Forecast night icon
    Night
    Clear
    49°
    Sunday 5/5
    Day
    63°
    Sunny
    Forecast day icon
    Night
    49°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 63F. Dew point will be around 36F with an average humidity of 46%. Winds will be 4 mph from the NW.
    Night Details
    Clear. Low temperature around 49F. Dew point will be around 38F with an average humidity of 58%. Winds will be 3 mph from the W.