Weather forecast for todayOntario, CA

Weather forecast for today

Current condition 7:29 am PST

  • 57°F
  • Feels like:
    57°F
Partly Cloudy
Partly Cloudy
  • Precipitation: 0"
  • Wind: 1mphSW 230°
  • Humidity: 83%
  • Dewpoint: 54°F
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
In Ontario, at the moment, the weather is partly cloudy with occasional clear patches.
The temperature is a moderate 57.2°F. The current temperature is almost at the minimum-expected 59°F for today.

Saturday Oct 31, 2026

  • 70°F
  • 59°F
Cloudy
Cloudy
  • Precip. probability: 23%
  • Precipitation: 0.55"
  • Wind: 6mphS 180°
  • Humidity: 61%
  • UV index: 2
  • Sunrise: 7:09 am PDT
  • Sunset: 5:58 pm PDT
  • ▼
On Saturday, October 31, expect persistent cloudiness.
With a low probability, moderate precipitation is predicted for today. The temperature is anticipated to oscillate between a maximum of a pleasant 69.8°F and a minimum of a moderate 59°F.
Today, the colder weather will bring a peak temperature more in tune with November's 70.7°F.
Sunrise was at 7:09 am and sunset will be at 5:58 pm; the daylight will last for 10h and 49min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 70°C.
Coldest hour: 9 am 61°C.

Chance of precipitation

Highest chance: 11 pm 81%.

Hourly weather forecast

  • 9 am
  • 61°F
  • Feels like:
    61°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 1mphENE 65°
  • Humidity: 79%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 10 am
  • 63°F
  • Feels like:
    63°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphE 83°
  • Humidity: 72%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 11 am
  • 64°F
  • Feels like:
    64°F
Cloudy
Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphESE 118°
  • Humidity: 67%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 66°F
  • Feels like:
    66°F
Cloudy
Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 3mphSSE 165°
  • Humidity: 60%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 1 pm
  • 68°F
  • Feels like:
    68°F
Cloudy
Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 4mphSE 145°
  • Humidity: 56%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 2 pm
  • 68°F
  • Feels like:
    68°F
Cloudy
Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 4mphNNW 343°
  • Humidity: 53%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 3 pm
  • 70°F
  • Feels like:
    70°F
Cloudy
Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 4mphSSW 214°
  • Humidity: 50%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 4 pm
  • 70°F
  • Feels like:
    70°F
Cloudy
Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 4mphSW 234°
  • Humidity: 50%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 5 pm
  • 68°F
  • Feels like:
    68°F
Cloudy
Cloudy
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 6mphSW 226°
  • Humidity: 52%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 5:58 pm
  • 6 pm
  • 68°F
  • Feels like:
    68°F
Cloudy
Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 6mphWSW 239°
  • Humidity: 58%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 7 pm
  • 66°F
  • Feels like:
    66°F
Showers
Showers
  • Precip. probability: 45%
  • Precipitation: 0.04"
  • Wind: 6mphSW 227°
  • Humidity: 66%
  • Pressure: 29.85"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 8 pm
  • 64°F
  • Feels like:
    64°F
Light Rain
Light Rain
  • Precip. probability: 61%
  • Precipitation: 0.04"
  • Wind: 6mphWSW 236°
  • Humidity: 73%
  • Pressure: 29.85"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 9 pm
  • 63°F
  • Feels like:
    63°F
Rain
Rain
  • Precip. probability: 70%
  • Precipitation: 0.04"
  • Wind: 4mphSW 230°
  • Humidity: 76%
  • Pressure: 29.85"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
  • 10 pm
  • 63°F
  • Feels like:
    63°F
Rain
Rain
  • Precip. probability: 83%
  • Precipitation: 0.04"
  • Wind: 4mphWSW 247°
  • Humidity: 79%
  • Pressure: 29.85"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
  • 11 pm
  • 63°F
  • Feels like:
    63°F
Rain
Rain
  • Precip. probability: 81%
  • Precipitation: 0.08"
  • Wind: 2mphWSW 243°
  • Humidity: 82%
  • Pressure: 29.85"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
Today, a combination of gloomy and rainy weather is expected.
Rainfall is predicted from 7 pm to 11 pm. With light precipitation of 0.08", most rainfall is expected at 11 pm.
The temperature will be between the lowest temperature of 60.8°F and the highest temperature of 69.8°F. The warmest part of the day will be at 3 pm and 4 pm.
The forecasted high is more close to November's typical maximum of 70.7°F than the usual for October. Today, the temperature will drop to a level resembling October's average minimum of 57.9°F.
Updated: Oct 31, 2026 @ 15:29:51 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (7:29 am PST) it is 57.2°F in Ontario.

Today, cloudy weather is expected.

Moderate precipitation of 0.55" is forecasted. The chance of rainfall is 23%.

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

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

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