Weather forecast for 10 daysOntario, NY
Weather forecast for the weekend
Sunday Oct 18, 2026
- 64°F
- 39°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 7mphSW 226°
- Humidity: 61%
- UV index: 4
- Sunrise: 7:26 am EDT
- Sunset: 6:21 pm EDT
- details ▼
Today, in Ontario, clear skies and sunshine are anticipated.
Temperatures will oscillate between an enjoyable 64.4°F at their highest and a wintry 39.2°F at their lowest.
Weather conditions lean warmer, with the temperature tracking September's average high of 70.3°F.
Sunrise will be at 7:26 am and sunset at 6:21 pm; the daylight will last for 10h and 55min.
Temperatures will oscillate between an enjoyable 64.4°F at their highest and a wintry 39.2°F at their lowest.
Weather conditions lean warmer, with the temperature tracking September's average high of 70.3°F.
Sunrise will be at 7:26 am and sunset at 6:21 pm; the daylight will last for 10h and 55min.
10-day overview
Daily temperatures
Warmest day: tomorrow 66°C.
Coldest day: Friday 52°C.
Coldest day: Friday 52°C.
Chance of precipitation
Highest chance: Tuesday 17%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 64°F
- 39°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 7mphSW 226°
- Humidity: 61%
- UV index: 4
- Sunrise: 7:26 am EDT
- Sunset: 6:21 pm EDT
- details ▼
- Monday
- Oct 19, 2026
- 66°F
- 46°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 6mphWSW 254°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:28 am EDT
- Sunset: 6:20 pm EDT
- details ▼
- Tuesday
- Oct 20, 2026
- 59°F
- 39°F
Mostly Sunny
- Precip. probability: 17%
- Precipitation: 0"
- Wind: 10mphNE 35°
- Humidity: 70%
- UV index: 3
- Sunrise: 7:29 am EDT
- Sunset: 6:18 pm EDT
- details ▼
- Wednesday
- Oct 21, 2026
- 57°F
- 39°F
Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 6mphNE 56°
- Humidity: 69%
- UV index: 3
- Sunrise: 7:30 am EDT
- Sunset: 6:16 pm EDT
- details ▼
- Thursday
- Oct 22, 2026
- 59°F
- 41°F
Partly Cloudy
- Precip. probability: 11%
- Precipitation: 0"
- Wind: 7mphNW 322°
- Humidity: 75%
- UV index: 3
- Sunrise: 7:31 am EDT
- Sunset: 6:15 pm EDT
- details ▼
- Friday
- Oct 23, 2026
- 52°F
- 34°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 9mphNE 40°
- Humidity: 64%
- UV index: 3
- Sunrise: 7:32 am EDT
- Sunset: 6:13 pm EDT
- details ▼
- Saturday
- Oct 24, 2026
- 57°F
- 36°F
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 4mphESE 112°
- Humidity: 63%
- UV index: 3
- Sunrise: 7:34 am EDT
- Sunset: 6:12 pm EDT
- details ▼
- Sunday
- Oct 25, 2026
- 61°F
- 43°F
Partly Cloudy
- Precip. probability: 13%
- Precipitation: 0"
- Wind: 6mphSW 215°
- Humidity: 61%
- UV index: 3
- Sunrise: 7:35 am EDT
- Sunset: 6:10 pm EDT
- details ▼
- Monday
- Oct 26, 2026
- 63°F
- 45°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 7mphW 279°
- Humidity: 68%
- UV index: 3
- Sunrise: 7:36 am EDT
- Sunset: 6:09 pm EDT
- details ▼
- Tuesday
- Oct 27, 2026
- 55°F
- 41°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 9mphN 357°
- Humidity: 69%
- UV index: 3
- Sunrise: 7:38 am EDT
- Sunset: 6:07 pm EDT
- details ▼
For the next ten days, a combination of dry and sunny and cloudy weather is anticipated.
Rainfall is not forecasted in Ontario in the upcoming period.
Noticeable swings in temperature are expected across the forecast period. The temperature is expected to swing from 51.8°F up to 66.2°F, while the difference in minimum temperatures will be also substantial, as the overnight lows will vary from 33.8°F to 46.4°F.
Monday is expected to be the warmest, reaching up to 66.2°F; with the highest temperature of 51.8°F, Friday will be the coldest day.
Rainfall is not forecasted in Ontario in the upcoming period.
Noticeable swings in temperature are expected across the forecast period. The temperature is expected to swing from 51.8°F up to 66.2°F, while the difference in minimum temperatures will be also substantial, as the overnight lows will vary from 33.8°F to 46.4°F.
Monday is expected to be the warmest, reaching up to 66.2°F; with the highest temperature of 51.8°F, Friday will be the coldest day.
Updated: Oct 18, 2026 @ 11:02:27 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
Today, in Ontario, conditions remain stable and sunny, with little cloud presence.
Today, the maximum temperature will be 64.4°F, while the minimum temperature will be 39.2°F.
The highest temperature today will be moderately higher than the average maximum temperature in October. The lowest temperature will be also a couple of degrees lower than the average low of 48.2°F.
The highest temperature today will be moderately higher than the average maximum temperature in October. The lowest temperature will be also a couple of degrees lower than the average low of 48.2°F.
On Sunday, in Ontario, sunrise will be at 7:26 am and sunset at 6:21 pm (EDT).
In Ontario, New York, the length of the day today will be 10h and 55min.
