Weather forecast for todayOntario, CA

Weather forecast for today

Current condition 4:12 am PST

  • 55°F
  • Feels like:
    55°F
Partly Cloudy
Partly Cloudy
  • Precipitation: 0"
  • Wind: 2mphENE 60°
  • Humidity: 88%
  • Dewpoint: 54°F
  • Pressure: 29.92"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Currently, a mix of cloud cover and clear skies can be seen.
The temperature is a refreshing 55.4°F. The current temperature is almost at the minimum-predicted 57.2°F for today.

Saturday Oct 31, 2026

  • 70°F
  • 57°F
Cloudy
Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.59"
  • Wind: 6mphSE 142°
  • Humidity: 67%
  • UV index: 3
  • Sunrise: 7:09 am PDT
  • Sunset: 5:58 pm PDT
  • ▼
Today, the sky will remain cloudy throughout.
With a low probability, moderate precipitation is forecasted. The highest temperature will be a pleasant 69.8°F, while the lowest temperature will be a mild 57.2°F.
Today, expect colder conditions as the high matches November's average of 70.7°F, not October's.
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 - 6 pm 68°C.
Coldest hour: 6 am 55°C.

Chance of precipitation

Highest chance: 12 am 88%.

Hourly weather forecast

  • 6 am
  • 55°F
  • Feels like:
    55°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphENE 67°
  • Humidity: 88%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:09 am
  • 8 am
  • 57°F
  • Feels like:
    57°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphNE 54°
  • Humidity: 86%
  • 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 108°
  • Humidity: 70%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 66°F
  • Feels like:
    66°F
Cloudy
Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphS 180°
  • 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: 3mphS 188°
  • Humidity: 51%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 68°F
  • Feels like:
    68°F
Cloudy
Cloudy
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 4mphSW 226°
  • Humidity: 50%
  • 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 245°
  • Humidity: 58%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 64°F
  • Feels like:
    64°F
Light Rain
Light Rain
  • Precip. probability: 67%
  • Precipitation: 0.04"
  • Wind: 6mphWSW 238°
  • Humidity: 73%
  • Pressure: 29.85"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 10 pm
  • 63°F
  • Feels like:
    63°F
Rain
Rain
  • Precip. probability: 83%
  • Precipitation: 0.08"
  • Wind: 4mphWSW 248°
  • Humidity: 80%
  • Pressure: 29.85"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
Today, in Ontario, a combination of overcast and rain-filled weather is expected.
Rain is expected from 7 pm to 11 pm. With light precipitation of 0.08", the most intense rain will be falling at 10 pm and 11 pm.
The temperature will be between the lowest temperature of 55.4°F and the highest temperature of 69.8°F. The warmest part of the day is expected around 3 pm.
Today, the forecast temperature is more consistent with November's average maximum of 70.7°F than October's. Today, the lowest temperature will be in line with October's usual minimum.
Updated: Oct 31, 2026 @ 12:12:25 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The temperature at 4:12 am PST is 55.4°F.

Today, in Ontario, the sky will remain cloudy throughout.

Moderate precipitation of 0.59" is expected in Ontario. The possibility of rainfall is 24%.

Today, the maximum temperature will be 69.8°F, while the minimum temperature will be 57.2°F.
Today, the maximum temperature will be noticeably lower than the average highest temperature of 79°F in October. The lowest temperature will be in line with the average low of 57.9°F.

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.