See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
24°
Clear
Feels Like: 23°
Min: 13°
Max: 24°
The next few hours will be clear, with today reaching 24°C and dropping to 18°C. The coming days will be mostly cloudy throughout the day.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:40
Sunrise
18:52
Sunset
Moon
Waxing Crescent
12:32
Moonrise
20:56
Moonset
Daily Forecast
Today
Thursday
Friday
Saturday
Sunday
Monday
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Friday
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Humidity
Weather in Holtsville today, September 16, 2026
Expect a mostly clear day in Holtsville on September 16, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled.
Temperatures climb from an overnight low near 13°C toward a daytime high of about 24°C. The air stays humid, with relative humidity between 54% and 96% and the peak around 23:00. A lighter breeze peaks around 15:00 near 4.8 km/h.
Expect persistent cloud later on, with amounts around 100% by 16:00. Sunshine remains the exception, not the rule. Visibility stays generally good near 15.6 km on average, though it can drop toward 13.3 km in thicker cloud or showers. Sunrise is at 06:40 and sunset at 18:52, giving 12 hours 12 minutes of sunlight today.
Overall, Holtsville on September 16, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 24°C.
Frequently asked questions about weather in Holtsville
How warm does it get in Holtsville?
The warmest month in Holtsville is July, with average high temperatures of 26°C. The average temperature during this period is around 24°C.
How cold does it get in Holtsville?
The coldest month in Holtsville is January, with average low temperatures of 0°C. The average temperature during this period is around 2°C.
What is the wettest time of year in Holtsville?
The wettest month in Holtsville is December, with an average of 130mm of precipitation.
What is the driest time of year in Holtsville?
The driest month in Holtsville is June, with an average of 68mm of precipitation.
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