Weather in Holtsville, NY
Updated 2026-08-11 13:00 local time · ZIP codes 11742
Cloudy
No government weather alerts were returned for this location at the latest update.
Next hours
82°2% rain
93°2% rain88°1% rain93°1% rain92°1% rain
87°3% rain82°7% rain
79°24% rain
75°70% rain
75°58% rain
75°15% rain74°15% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance reaches about 70% over the next 12 hours.
It feels like 85°F with winds near 7 mph.
82°F, 2% rain chance and 7 mph wind.
Visibility is around 10 mi; gusts may reach 16 mph.
Current temperature is 82°F, wind 7 mph, rain chance up to 70%.
UV index is 7. Sunscreen, shade and protective clothing are recommended.
Holtsville weather today
Cloudy and 82°F in Holtsville, NY. Today's high is 93°F with a 57% rain chance. Winds are around 7 mph with gusts near 8 mph. Relative humidity is 66%, pressure is 29.84 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Holtsville
Sunrise is at 05:58 AM and sunset is at 07:56 PM. Tomorrow's forecast calls for Sunny with a high near 83°F and a low near 66°F. The maximum rain chance is 67%.