Holtsville, NY Weather

Updated: Wed Jul 9th 2025 9:30 AM EDT

Partly Cloudy

78^°F 26^°C

Feels Like 85^°F / 30^°C

Holtsville, NY weather condition is Partly Cloudy and 78°F.

Today's Weather in Holtsville,NY

The current weather in Holtsville NY as of 9:30 AM EDT on Wed Jul 9th 2025, has a sky condition of Partly Cloudy with the visibility of 9 mile(s) and the UV index at 3.3. It is 78 degrees fahrenheit but feels like 85 degrees. The barometric pressure is 30.01 - measured by inches of mercury - and is steady since its last observation. The humidity is 87 percent that's falling since the last report, with a dew point of 72 degrees fahrenheit which is rising. Wind direction is from the West-Northwest at 7.2 miles per hour, gusting at 11.1 miles per hour. Sunrise was at 5:28 AM and Sunset is at 8:24 PM. The moon phase is a Waxing Gibbous moon rising at 8:05 PM. Thank you for listening to the weather report from LocalConditions.com!

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Barometer 30.01 inHg. rising
Humidity 87% falling
Heat Index 78°F
Wind from WNW. 7.2 mph
Wind Gust 11.1 miles per hour
Wind Chill 73°F
UV Index 3.3

Dew Point 72°F rising
Visibility 9 mi.
Sunrise 5:28 AM
Sunset 8:24 PM
Moonrise 8:05 PM
Moonset 3:45 AM
Moon Phase Waxing Gibbous Moon

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Hourly Forecast - Next 8 hours

5 Day Forecast

Overcast

Overcast with a high of 79°F and a low of 71°F. Winds will be moderate, blowing around 12mph. Expect high humidity with levels above 80% to 92%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 79° \| Lo 71°	92%	0%	0%	11.6 mph

Moderate Rain

Moderate Rain with a high of 72°F and a low of 69°F. Probable rainfall forecasted, having an 82% chance with an estimated 0.21in. Winds will be moderate, blowing around 11mph. Expect high humidity with levels above 80% to 95%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 72° \| Lo 69°	95%	82% \| est. 0.21in	0%	10.1 mph

Cloudy

Cloudy with a high of 75°F and a low of 68°F. Winds will be moderate, blowing around 11mph. Expect high humidity with levels above 80% to 90%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 75° \| Lo 68°	90%	0% \| est. 0in	0%	11 mph

Patchy Rain Nearby

Patchy Rain Nearby with a high of 75°F and a low of 70°F. Probable rainfall forecasted, having an 89% chance with an estimated 0.04in. Winds will be moderate, blowing around 12mph. Expect high humidity with levels above 80% to 87%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 75° \| Lo 70°	87%	89% \| est. 0.04in	0%	11.9 mph

Partly Cloudy

Partly Cloudy with a high of 82°F and a low of 71°F. Winds will be moderate, blowing around 12mph. Expect high humidity with levels above 80% to 86%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 82° \| Lo 71°	86%	0% \| est. 0in	0%	11.4 mph

Yesterday Tomorrow 5-Day

Weather Radar Map

Live Holtsville, NY weather with granular precipitation, radar, barometric pressure, temperatures and wind speeds for today thru Sunday, as you toggle through each map layer. Use the slider to move forward and back in time to view how current data and forecasts will affect the region; you can press or click on the map to show metrics available for each tab. The related timestamp is located above the Play button which will animate the weather forecast.

Hourly Temperature

The current temperature today is 78^°F. The morning temperature of 71°^F is lowest at 4am with the daytime high of 84°^F at 4pm and a low around 74°^F at 10pm is expected.