Weather forecast for tomorrow
Ontario, CA

Weather forecast for tomorrow

Friday, Jun 20.

Partly Cloudy
5:38 am

8:06 pm
PDT
Partly Cloudy
84°F / 61°F
  • Wind: 14mph WSW
  • Humidity: 57%
  • Precip. probability: 4%
  • Precipitation: 0"
  • UV index: 10
Tomorrow, in Ontario, mostly clear with scattered clouds is expected.
The maximum temperature will be a warm 84.2°F, while the minimum predicted temperature is an enjoyable 60.8°F.
The maximum heat index, which combines air temperature and relative humidity, is evaluated at a blazing 87.8°F. Note that heat index values are valued for light wind and location in the shade.
The anticipated daily high is projected to match June's typical maximum of 84°F.
Sunrise will be at 5:38 am and sunset at 8:06 pm; tomorrow's daylight will last for 14h and 28min.

Frequently asked questions

What is the weather forecast for Ontario for tomorrow?
On Friday, sunny moments will alternate with patchy cloud cover.
What will be the highest temperature tomorrow?
Tomorrow, the maximum temperature will be 84.2°F, while the minimum temperature will be 60.8°F. The maximum heat index, which represents the influence of relative humidity on air temperature, is evaluated at 87.8°F.
The maximum temperature will be in line with the average highest temperature of 84°F in June. The lowest temperature will be also in line with the average low of 58.5°F.
When is the sunrise / sunset tomorrow?
On Friday, in Ontario, sunrise will be at 5:38 am and sunset at 8:06 pm (PDT).
How many hours of daylight will Ontario have tomorrow?
Tomorrow, the daylight will last for 14h and 28min.

Hourly weather forecast

12 am
  • 64°F
  • Feels like:
    64°F
Clear
Clear
  • Wind: 6mph W
  • Pressure: 29.8"Hg
  • Humidity: 84%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 10mi
2 am
  • 64°F
  • Feels like:
    64°F
Mostly Clear
Mostly Clear
  • Wind: 6mph W
  • Pressure: 29.8"Hg
  • Humidity: 82%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 10mi
4 am
  • 63°F
  • Feels like:
    63°F
Partly Cloudy
Partly Cloudy
  • Wind: 4mph WSW
  • Pressure: 29.77"Hg
  • Humidity: 85%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 10mi
Sunrise: 5:38 am
6 am
  • 63°F
  • Feels like:
    63°F
Partly Cloudy
Partly Cloudy
  • Wind: 4mph WSW
  • Pressure: 29.8"Hg
  • Humidity: 88%
  • Precip. probability: 6%
  • Precipitation: 0"
  • Visibility: 6mi
8 am
  • 63°F
  • Feels like:
    63°F
Partly Cloudy
Partly Cloudy
  • Wind: 3mph SW
  • Pressure: 29.8"Hg
  • Humidity: 87%
  • Precip. probability: 4%
  • Precipitation: 0"
  • Visibility: 10mi
10 am
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Wind: 4mph SW
  • Pressure: 29.8"Hg
  • Humidity: 71%
  • Precip. probability: 1%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 75°F
  • Feels like:
    75°F
Sunny
Sunny
  • Wind: 7mph WSW
  • Pressure: 29.77"Hg
  • Humidity: 52%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
2 pm
  • 81°F
  • Feels like:
    81°F
Sunny
Sunny
  • Wind: 11mph WSW
  • Pressure: 29.74"Hg
  • Humidity: 41%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
4 pm
  • 82°F
  • Feels like:
    82°F
Sunny
Sunny
  • Wind: 13mph WSW
  • Pressure: 29.71"Hg
  • Humidity: 39%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
6 pm
  • 79°F
  • Feels like:
    81°F
Sunny
Sunny
  • Wind: 14mph WSW
  • Pressure: 29.71"Hg
  • Humidity: 43%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
8 pm
  • 72°F
  • Feels like:
    72°F
Sunny
Sunny
  • Wind: 12mph WSW
  • Pressure: 29.74"Hg
  • Humidity: 59%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
Sunset: 8:06 pm
10 pm
  • 66°F
  • Feels like:
    66°F
Clear
Clear
  • Wind: 9mph WSW
  • Pressure: 29.8"Hg
  • Humidity: 76%
  • Precip. probability: 3%
  • Precipitation: 0"
  • Visibility: 10mi
Tomorrow, on Friday, a combination of dry and sunny and cloudy weather is predicted.
The temperature will vary between the lowest temperature of 62.6°F and the highest temperature of 82.4°F. The warmest part of the day will be at 3 pm and 4 pm.
The maximum temperature will be comparable to June's average highest temperature of 84°F. The night temperature will be also resembling the standard June low of 58.5°F.
Updated: Jun 20, 2025 @ 05:35:15 UTC
Published by: Weather U.S. | About Us
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