Weather forecast for tomorrowOntario, NY

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 66°F
  • 46°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphWSW 251°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:28 am EDT
  • Sunset: 6:20 pm EDT
  • ▼
On Monday, October 19, uninterrupted sunshine is also anticipated.
The temperature will vary between a maximum of a comfortable 66.2°F and a minimum of a brisk 46.4°F.
Weather conditions lean warmer, with the temperature tracking September's average high of 70.3°F.
Sunrise will be at 7:28 am and sunset at 6:20 pm; tomorrow's daylight will last for 10h and 52min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 41°C.

Chance of precipitation

Highest chance: 9 pm 5%.

Hourly weather forecast

  • 12 am
  • 45°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSW 202°
  • Humidity: 64%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 43°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphSSW 199°
  • Humidity: 65%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 43°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSW 199°
  • Humidity: 64%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 41°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSW 199°
  • Humidity: 65%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:28 am
  • 8 am
  • 41°F
  • Feels like:
    37°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphSSW 199°
  • Humidity: 66%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 52°F
  • Feels like:
    50°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSW 205°
  • Humidity: 54%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 61°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphSW 227°
  • Humidity: 46%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphW 278°
  • Humidity: 42%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphNW 319°
  • Humidity: 48%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 57°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 1mphNNE 17°
  • Humidity: 65%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:20 pm
  • 8 pm
  • 52°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 1mphNW 313°
  • Humidity: 80%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 48°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 1mphW 276°
  • Humidity: 87%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Monday, mainly sunny weather and a cloudless sky are anticipated.
The temperature will be between a minimum of 41°F and a maximum of 64.4°F. The warmest part of the day will be from 2 pm to 4 pm.
The temperature will feel more close to September's average high than the expected maximum for October. The expected low will be comparable to the average minimum in October, which is 48.2°F.
Updated: Oct 18, 2026 @ 14:24:48 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Ontario, a sun-drenched sky is anticipated.

Tomorrow, the maximum temperature will be 66.2°F, while the minimum temperature will be 46.4°F.
The maximum temperature will be relatively higher than the average highest temperature of 58.1°F in October. The lowest temperature will be in line with the average low of 48.2°F.

On Monday, in Ontario, sunrise will be at 7:28 am and sunset at 6:20 pm (EDT).

In Ontario, the length of the day tomorrow will be 10h and 52min.