Weather forecast for 10 daysSmithtown, NY
Weather forecast for the weekend
Saturday Oct 17, 2026
- 52°F
- 41°F
Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 19mphN 349°
- Humidity: 48%
- UV index: 4
- Sunrise: 7:06 am EDT
- Sunset: 6:09 pm EDT
- details ▼
On Saturday, in Smithtown, low-hanging clouds will persist throughout the day.
The maximum forecasted temperature is a cool 51.8°F, while the minimum temperature will be an icy 41°F.
Today, the forecast high deviates from October's norm and tracks November's average temperature of 51.4°F.
Sunrise was at 7:06 am and sunset will be at 6:09 pm; the daylight will last for 11h and 3min.
The maximum forecasted temperature is a cool 51.8°F, while the minimum temperature will be an icy 41°F.
Today, the forecast high deviates from October's norm and tracks November's average temperature of 51.4°F.
Sunrise was at 7:06 am and sunset will be at 6:09 pm; the daylight will last for 11h and 3min.
Sunday Oct 18, 2026
- 57°F
- 43°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 14mphNNE 32°
- Humidity: 47%
- UV index: 4
- Sunrise: 7:07 am EDT
- Sunset: 6:08 pm EDT
- details ▼
On Sunday, in Smithtown, sunshine and minimal clouds are also in the outlook.
Anticipated temperature values will span from a moderate 57.2°F down to a brisk 42.8°F.
Tomorrow, the expected high temperature will be moderately lower than the average October peak of 62.2°F.
Sunrise will be at 7:07 am and sunset at 6:08 pm; tomorrow's daylight will last for 11h and 1min.
Anticipated temperature values will span from a moderate 57.2°F down to a brisk 42.8°F.
Tomorrow, the expected high temperature will be moderately lower than the average October peak of 62.2°F.
Sunrise will be at 7:07 am and sunset at 6:08 pm; tomorrow's daylight will last for 11h and 1min.
10-day overview
Daily temperatures
Warmest day: Tuesday 68°C.
Coldest day: today 52°C.
Coldest day: today 52°C.
Chance of precipitation
Highest chance: 24%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- 52°F
- 41°F
Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 19mphN 349°
- Humidity: 48%
- UV index: 4
- Sunrise: 7:06 am EDT
- Sunset: 6:09 pm EDT
- details ▼
- Sunday
- Oct 18, 2026
- 57°F
- 43°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 14mphNNE 32°
- Humidity: 47%
- UV index: 4
- Sunrise: 7:07 am EDT
- Sunset: 6:08 pm EDT
- details ▼
- Monday
- Oct 19, 2026
- 63°F
- 50°F
Mostly Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 17mphNNE 33°
- Humidity: 57%
- UV index: 4
- Sunrise: 7:08 am EDT
- Sunset: 6:06 pm EDT
- details ▼
- Tuesday
- Oct 20, 2026
- 68°F
- 48°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 17mphNNE 25°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:09 am EDT
- Sunset: 6:05 pm EDT
- details ▼
- Wednesday
- Oct 21, 2026
- 61°F
- 46°F
Mostly Sunny
- Precip. probability: 7%
- Precipitation: 0.04"
- Wind: 18mphNE 35°
- Humidity: 60%
- UV index: 4
- Sunrise: 7:10 am EDT
- Sunset: 6:03 pm EDT
- details ▼
- Thursday
- Oct 22, 2026
- 63°F
- 48°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 16mphNNE 17°
- Humidity: 59%
- UV index: 4
- Sunrise: 7:12 am EDT
- Sunset: 6:02 pm EDT
- details ▼
- Friday
- Oct 23, 2026
- 61°F
- 46°F
Partly Cloudy
- Precip. probability: 21%
- Precipitation: 0"
- Wind: 14mphNNE 21°
- Humidity: 54%
- UV index: 4
- Sunrise: 7:13 am EDT
- Sunset: 6:00 pm EDT
- details ▼
- Saturday
- Oct 24, 2026
- 59°F
- 45°F
Partly Cloudy
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 15mphNNE 29°
- Humidity: 59%
- UV index: 4
- Sunrise: 7:14 am EDT
- Sunset: 5:59 pm EDT
- details ▼
- Sunday
- Oct 25, 2026
- 63°F
- 48°F
Partly Cloudy
- Precip. probability: 23%
- Precipitation: 0"
- Wind: 12mphNNE 32°
- Humidity: 63%
- UV index: 4
- Sunrise: 7:15 am EDT
- Sunset: 5:58 pm EDT
- details ▼
- Monday
- Oct 26, 2026
- 66°F
- 50°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 11mphN 359°
- Humidity: 63%
- UV index: 4
- Sunrise: 7:16 am EDT
- Sunset: 5:56 pm EDT
- details ▼
Forecasts for the ten-day outlook show that a combination of cloudy and sun-filled weather is predicted.
Rainfall is not anticipated in Smithtown in the upcoming period.
Expect a substantial fluctuation in daytime highs over the next several days. Highs will range from 51.8°F to 68°F, while the forecast minimum temperature falls between 41°F and 50°F.
Tuesday is expected to be the warmest, reaching up to 68°F; today is the coldest day, with a maximum temperature of 51.8°F.
Rainfall is not anticipated in Smithtown in the upcoming period.
Expect a substantial fluctuation in daytime highs over the next several days. Highs will range from 51.8°F to 68°F, while the forecast minimum temperature falls between 41°F and 50°F.
Tuesday is expected to be the warmest, reaching up to 68°F; today is the coldest day, with a maximum temperature of 51.8°F.
Updated: Oct 17, 2026 @ 16:56:02 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Saturday, cloud coverage will be extensive.
Today, the maximum temperature will be 51.8°F, while the minimum temperature will be 41°F.
Today, the maximum temperature will be notably lower than the average highest temperature of 62.2°F in October. The lowest temperature will be also significantly lower than the average low of 54.7°F.
Today, the maximum temperature will be notably lower than the average highest temperature of 62.2°F in October. The lowest temperature will be also significantly lower than the average low of 54.7°F.
On Saturday, in Smithtown, sunrise was at 7:06 am and sunset will be at 6:09 pm (EDT).
In Smithtown, the length of the day today will be 11h and 3min.
Tomorrow, a sun-drenched sky is anticipated.
Tomorrow, the highest temperature will be 57.2°F, while the lowest temperature will be 42.8°F.
The highest temperature will be a few degrees lower than the average maximum of 62.2°F in October. The lowest temperature tomorrow will be uncommonly lower than the average low of 54.7°F.
The highest temperature will be a few degrees lower than the average maximum of 62.2°F in October. The lowest temperature tomorrow will be uncommonly lower than the average low of 54.7°F.
On Sunday, in Smithtown, sunrise will be at 7:07 am and sunset at 6:08 pm (EDT).
Tomorrow, the daylight will last for 11h and 1min.





