Weather forecast for todayOntario, CA

Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND

Weather forecast for today

Current condition 3:16 am PDT

  • 55°F
  • Feels like:
    55°F
Fair
Fair
  • Precipitation: 0"
  • Wind: 1mphNNE 30°
  • Humidity: 89%
  • Dewpoint: 54°F
  • Pressure: 29.92"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Currently, in Ontario, the weather is fair with a calm and pleasant atmosphere.
The temperature is a mild 55.4°F. The current temperature is almost at the minimum-anticipated 57.2°F for today.

Saturday Oct 31, 2026

  • 70°F
  • 57°F
Cloudy
Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 6mphS 173°
  • Humidity: 63%
  • UV index: 3
  • Sunrise: 7:09 am PDT
  • Sunset: 5:58 pm PDT
  • ▼
Today, on Saturday, October 31, the sky will remain cloudy throughout.
Temperature span will be from a high of an agreeable 69.8°F to a low of a mild 57.2°F.
Today, it will be colder with a forecast high that reflects November's climate of 70.7°F.
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 period: 2 pm - 4 pm 68°C.
Coldest hour: 6 am 55°C.

Chance of precipitation

Highest chance: 10 pm 79%.

Hourly weather forecast

  • 4 am
  • 57°F
  • Feels like:
    57°F
Mostly Clear
Mostly Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 1mphNE 34°
  • Humidity: 90%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 55°F
  • Feels like:
    55°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphNE 50°
  • Humidity: 90%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:09 am
  • 8 am
  • 59°F
  • Feels like:
    59°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphNE 42°
  • Humidity: 84%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 63°F
  • Feels like:
    63°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 3mphESE 118°
  • Humidity: 70%
  • 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: 4mphSSE 161°
  • 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: 4mphSSW 193°
  • Humidity: 51%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 68°F
  • Feels like:
    68°F
Cloudy
Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 4mphSW 231°
  • Humidity: 51%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 5:58 pm
  • 6 pm
  • 66°F
  • Feels like:
    66°F
Cloudy
Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 6mphWSW 251°
  • Humidity: 59%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 64°F
  • Feels like:
    64°F
Rain
Rain
  • Precip. probability: 69%
  • Precipitation: 0.04"
  • Wind: 6mphWSW 247°
  • Humidity: 74%
  • Pressure: 29.85"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
  • 10 pm
  • 63°F
  • Feels like:
    63°F
Rain
Rain
  • Precip. probability: 79%
  • Precipitation: 0.04"
  • Wind: 4mphWSW 259°
  • Humidity: 80%
  • Pressure: 29.88"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
Today, in Ontario, a combination of cloudy and rainy weather is predicted.
Rain is forecasted from 7 pm to 11 pm. With light precipitation of 0.08", most rainfall is expected at 11 pm.
The temperature will be between a minimum of 55.4°F and a maximum of 68°F. The warmest part of the day will be from 1 pm to 5 pm.
Today, the high temperature is expected to be more close to November than to October's average of 79°F. Today, the minimum temperature will be alike with the average low for October.
Updated: Oct 31, 2026 @ 10:16:35 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The temperature at 2:16 am PST in Ontario is 55.4°F.

On Saturday, in Ontario, heavy clouds will be present throughout the day.

Today, the maximum temperature will be 69.8°F, while the minimum temperature will be 57.2°F.
The highest temperature will be uncommonly lower than the average maximum of 79°F in October. The lowest temperature today 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, the length of the day today will be 10h and 49min.
Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND

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Ontario, California, USA

  • en: Ontario, California, USA
  • es: Ontario, California, EE.UU.
  • hr: Ontario, Kalifornija, SAD
  • mk: Ontario, Kalifornija, SAD
  • sr: Ontario, Kalifornija, SAD
  • zh: 安大略, 加利福尼亚州, 美国
  • Latitude: 34.063344°
  • Longitude: -117.650888°
  • Elevation: 997 ft
  • Current time: 3:43am PDT
  • Sunrise: 7:09 am PDT
  • Sunset: 5:58 pm PDT
  • Timezone: America/Los_Angeles

Nearby Ontario, California, USA

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