Smithtown weather
At 6:15 PM local time it was clear and 10°C (51°F). Little to no rain in the next 24 hours. Best months for weather: May–Oct. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Smithtown, New York, United States.
Current conditions
- Clouds
- 0%
- Chance of rain
- 0%
- Rain
- 0.0 mm/h
Hourly Forecast
Little to no rain in the next 24 hours
Daily Forecast
Best Time to Visit
Peak season May–OctOff season Dec–Mar
About Smithtown weather
Is it raining in Smithtown right now?
No. It’s clear and 10° right now. Little to no rain in the next 24 hours.
What’s the weather like in Smithtown this week?
Over the next 7 days, expect highs of 14–21° and lows of 5–16°. Little rain is expected. The driest day looks like Saturday.
Has it been raining in Smithtown lately?
Barely. The past 7 days were mostly dry, with 0.0 mm of rain in total.
What should I pack for Smithtown?
For the coming week, bring a warm layer for the evenings.
Smithtown weather by month
When is the best time to visit Smithtown?
Based on weather alone, the best time to visit Smithtown is May–Oct, according to NASA's 2001–2025 climate averages. Dec–Mar tends to be the least pleasant. Average highs run from 3°C (37°F) in January to 27°C (80°F) in July.
What is the rainiest month in Smithtown?
October is the wettest month, with about 120 mm (4.7 in) of rain on average. January is the driest, with about 81 mm (3.2 in).
What is the hottest month in Smithtown?
July is the warmest, with average highs of 27°C (80°F) and lows of 20°C (69°F). January is the coolest, with highs of 3°C (37°F) and lows of -3°C (27°F).
Does Smithtown have a rainy season?
Not a strong one. No month averages more than 150 mm of rain; the wettest is October at about 120 mm (4.7 in).
How warm is the sea in Smithtown?
The sea is warmest in July at about 23°C (74°F) and coolest in February at about 3°C (37°F). It is comfortable for swimming (22°C or more) in Jul–Sep.
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), sea temperature from Open-Meteo Marine, forecast and current conditions from Open-Meteo. Page updated . How we rate months