Weather forecast for tomorrowStony Brook, NY

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 63°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 17mphNE 39°
  • Humidity: 60%
  • UV index: 4
  • Sunrise: 7:08 am EDT
  • Sunset: 6:06 pm EDT
  • ▼
Tomorrow, on Monday, October 19, patchy clouds will move across the sky, allowing for sunshine at times.
The temperature is expected to vary between a breezy 62.6°F and a fresh 50°F.
The forecasted daily high is projected to match October's typical maximum of 62.6°F.
Sunrise will be at 7:08 am and sunset at 6:06 pm; tomorrow's daylight will last for 10h and 58min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 61°C.
Coldest period: 12 am - 6 am 46°C.

Chance of precipitation

Highest chance: 3 am - 6 am 3%.

Hourly weather forecast

  • 12 am
  • 46°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphE 84°
  • Humidity: 69%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 46°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphENE 69°
  • Humidity: 75%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 46°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 11mphNE 46°
  • Humidity: 79%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 46°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 14mphNE 38°
  • Humidity: 79%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:08 am
  • 8 am
  • 48°F
  • Feels like:
    41°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 14mphNNE 32°
  • Humidity: 79%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 54°F
  • Feels like:
    48°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 17mphNE 39°
  • Humidity: 66%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 57°F
  • Feels like:
    54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 17mphNE 41°
  • Humidity: 56%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 61°F
  • Feels like:
    57°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 17mphNE 41°
  • Humidity: 49%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 61°F
  • Feels like:
    59°F
Cloudy
Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 17mphNE 42°
  • Humidity: 49%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 59°F
  • Feels like:
    55°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 16mphNE 40°
  • Humidity: 56%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:06 pm
  • 8 pm
  • 55°F
  • Feels like:
    52°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 16mphNE 42°
  • Humidity: 65%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 54°F
  • Feels like:
    50°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 17mphNE 35°
  • Humidity: 65%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, a combination of bright and cloud-filled weather is predicted.
The temperature will be between a minimum of 46.4°F and a maximum of 60.8°F. The warmest part of the day will be from 2 pm to 5 pm.
The maximum temperature will be consistent with the average high of 62.6°F in October. Forecasts indicate a night temperature also relatively lower than the usual October minimum of 55.4°F.
Updated: Oct 18, 2026 @ 06:56:53 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Stony Brook, occasional cloudiness will be present, but there will still be plenty of sun.

Tomorrow, the maximum temperature will be 62.6°F, while the minimum temperature will be 50°F.
The highest temperature will be in line with the average maximum of 62.6°F in October. The lowest temperature will be moderately lower than the average low of 55.4°F.

On Monday, in Stony Brook, sunrise will be at 7:08 am and sunset at 6:06 pm (EDT).

In Stony Brook, tomorrow, there will be 10h and 58min of daylight.