Weather forecast for tomorrow
Ontario, CA

Weather forecast for tomorrow

Sunday, Apr 20.

Mostly Sunny
6:11 am

7:27 pm
PDT
Mostly Sunny
79°F / 54°F
  • Wind: 12mph SW
  • Humidity: 37%
  • Precip. probability: 1%
  • Precipitation: 0"
  • UV index: 9
Tomorrow, in Ontario, mostly clear skies and sunshine will create ideal daytime conditions.
The highest temperature will be a temperate 78.8°F, while the lowest anticipated temperature is a crisp 53.6°F.
The anticipated temperature of 78.8°F resembles May's typical high of 76.6°F more than April's.
Sunrise will be at 6:11 am and sunset at 7:27 pm; tomorrow's daylight will last for 13h and 16min.

Frequently asked questions

What is the weather forecast for Ontario for tomorrow?
On Sunday, open skies and radiant sunshine are expected.
What will be the highest temperature tomorrow?
Tomorrow, the highest temperature will be 78.8°F, while the lowest temperature will be 53.6°F.
Tomorrow, the highest temperature will be a few degrees higher than the average maximum temperature in April. The lowest temperature tomorrow will be in line with the average low temperature.
When is the sunrise / sunset tomorrow?
On Sunday, in Ontario, sunrise will be at 6:11 am and sunset at 7:27 pm (PDT).
How long will the day be tomorrow?
Tomorrow, the daylight will last for 13h and 16min.

Hourly weather forecast

12 am
  • 55°F
  • Feels like:
    55°F
Clear
Clear
  • Wind: 2mph WNW
  • Pressure: 30.06"Hg
  • Humidity: 62%
  • Precip. probability: 1%
  • Precipitation: 0"
  • Visibility: 9mi
2 am
  • 55°F
  • Feels like:
    55°F
Clear
Clear
  • Wind: 3mph NNW
  • Pressure: 30.06"Hg
  • Humidity: 67%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 9mi
4 am
  • 54°F
  • Feels like:
    54°F
Clear
Clear
  • Wind: 2mph WNW
  • Pressure: 30.03"Hg
  • Humidity: 69%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 9mi
6 am
  • 52°F
  • Feels like:
    52°F
Clear
Clear
  • Wind: 2mph WNW
  • Pressure: 30.06"Hg
  • Humidity: 72%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 9mi
Sunrise: 6:11 am
8 am
  • 57°F
  • Feels like:
    57°F
Sunny
Sunny
  • Wind: 2mph SSE
  • Pressure: 30.06"Hg
  • Humidity: 58%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 9mi
10 am
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Wind: 2mph SSW
  • Pressure: 30.06"Hg
  • Humidity: 42%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 73°F
  • Feels like:
    73°F
Sunny
Sunny
  • Wind: 5mph WSW
  • Pressure: 30"Hg
  • Humidity: 32%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
2 pm
  • 77°F
  • Feels like:
    77°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph WSW
  • Pressure: 29.97"Hg
  • Humidity: 26%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
4 pm
  • 77°F
  • Feels like:
    77°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph WSW
  • Pressure: 29.94"Hg
  • Humidity: 26%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
6 pm
  • 75°F
  • Feels like:
    75°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph WSW
  • Pressure: 29.94"Hg
  • Humidity: 29%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
Sunset: 7:27 pm
8 pm
  • 66°F
  • Feels like:
    66°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph WSW
  • Pressure: 29.97"Hg
  • Humidity: 40%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
10 pm
  • 61°F
  • Feels like:
    61°F
Partly Cloudy
Partly Cloudy
  • Wind: 5mph WSW
  • Pressure: 30"Hg
  • Humidity: 50%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
Tomorrow, on Sunday, a combination of sun-filled and overcast weather is predicted.
The temperature will vary between a minimum of 51.8°F and a maximum of 78.8°F. The warmest part of the day is anticipated around 3 pm.
Tomorrow, the high temperature is expected to be more in line with May than to April's average of 72.9°F. Tomorrow, the temperature will drop to a level similar to April's average minimum of 50.2°F.
Updated: Apr 19, 2025 @ 14:31:40 UTC
Published by: Weather U.S. | About Us
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