Weather forecast for todayOntario, CA

Weather forecast for today

Current condition 11:01 pm PST

  • 57°F
  • Feels like:
    57°F
Partly Cloudy
Partly Cloudy
  • Precipitation: 0"
  • Wind: 3mphN 350°
  • Humidity: 85%
  • Dewpoint: 54°F
  • Pressure: 29.93"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
In Ontario, at the moment, the sky is covered by scattered clouds with bright spots in between.
The temperature is a mild 57.2°F. The current temperature is near the lowest predicted 59°F for today.

Saturday Oct 31, 2026

  • 70°F
  • 59°F
Cloudy
Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 6mphS 186°
  • Humidity: 63%
  • UV index: 3
  • Sunrise: 7:09 am PDT
  • Sunset: 5:58 pm PDT
  • ▼
On Saturday, in Ontario, cloudy weather is anticipated.
The temperature variation is forecasted to range from a maximum of an agreeable 69.8°F to a minimum of a moderate 59°F.
Today, the expected high temperature of 69.8°F better resembles November's average maximum than October's usual.
Sunrise will be at 7:09 am and sunset at 5:58 pm; the daylight will last for 10h and 49min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 68°C.
Coldest hour: 6 am 57°C.

Chance of precipitation

Highest chance: 9 pm 56%.

Hourly weather forecast

  • 12 am
  • 59°F
  • Feels like:
    59°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphNNW 347°
  • Humidity: 86%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 57°F
  • Feels like:
    57°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 1mphNE 55°
  • Humidity: 89%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 59°F
  • Feels like:
    59°F
Cloudy
Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphNNE 31°
  • Humidity: 88%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 57°F
  • Feels like:
    57°F
Cloudy
Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphNE 50°
  • Humidity: 85%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:09 am
  • 8 am
  • 57°F
  • Feels like:
    57°F
Cloudy
Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 3mphENE 57°
  • Humidity: 83%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 63°F
  • Feels like:
    63°F
Cloudy
Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 3mphESE 115°
  • Humidity: 69%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 66°F
  • Feels like:
    66°F
Cloudy
Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphS 175°
  • Humidity: 58%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 68°F
  • Feels like:
    68°F
Cloudy
Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphSW 220°
  • Humidity: 52%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 68°F
  • Feels like:
    68°F
Cloudy
Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 4mphWSW 249°
  • Humidity: 50%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 5:58 pm
  • 6 pm
  • 66°F
  • Feels like:
    66°F
Showers
Showers
  • Precip. probability: 41%
  • Precipitation: 0.04"
  • Wind: 6mphWSW 257°
  • Humidity: 62%
  • Pressure: 29.85"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 8 pm
  • 64°F
  • Feels like:
    64°F
Showers
Showers
  • Precip. probability: 46%
  • Precipitation: 0.04"
  • Wind: 6mphWSW 247°
  • Humidity: 75%
  • Pressure: 29.88"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 10 pm
  • 63°F
  • Feels like:
    63°F
Rain
Rain
  • Precip. probability: 62%
  • Precipitation: 0.04"
  • Wind: 4mphW 262°
  • Humidity: 81%
  • Pressure: 29.85"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
Today, primarily gloomy and occasionally rain-soaked weather is predicted.
With minimal precipitation of 0.04", rain is forecasted from 6 pm to 11 pm.
The temperature will vary between a maximum of 68°F and a minimum of 57.2°F. The warmest part of the day will be from 1 pm to 5 pm.
The maximum temperature today will be more in line with November's average high of 70.7°F than October's usual of 79°F. The lowest temperature is close to October's typical minimum of 57.9°F.
Updated: Oct 31, 2026 @ 07:01:04 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (11:01 pm PST) it is 57.2°F in Ontario.

On Saturday, expect a gray and cloudy sky.

Today, the maximum temperature will be 69.8°F, while the minimum temperature will be 59°F.
The maximum temperature will be significantly lower than the average highest temperature of 79°F in October. Today, the lowest temperature will be in line with the average low temperature.

On Saturday, in Ontario, sunrise will be at 7:09 am and sunset at 5:58 pm (PDT).

In Ontario, today, there will be 10h and 49min of daylight.