Ontario (CA)
April
Weather in Ontario, California for April 2027
Your guide to Ontario weather in April - trends and predictions
In general, the average temperature in Ontario at the beginning of April is 19.4 °F. As the month progressed, temperatures tended to slightly decrease, reaching an average of 19.1 °F by the end of April.
With an average of 4 rainy days, Ontario experiences minimal rainfall in April.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
26
Dry days
4
Rainy days
0
Snow days
20°/9°
Temperatures
17 km/h
Avg max wind
56 %
Avg humidity
Ontario Weather April
Move between months or click on a day
Temperatures trend during April in Ontario
See the weather trend as well as the moving average line
April weather in Ontario day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Apr. 1 |  Cloudy | 17° /8° | 0 mm | 5 | |
| Apr. 2 |  Sunny | 18° /8° | 0 mm | 5 | |
| Apr. 3 |  Overcast | 20° /9° | 0 mm | 6 | |
| Apr. 4 |  Patchy rain possible | 20° /8° | 0.2 mm | 5 | |
| Apr. 5 |  Patchy light rain with thunder | 20° /8° | 2.6 mm | 6 | |
| Apr. 6 | Sunny | 21° /9° | 0 mm | 6 | |
| Apr. 7 |  Partly cloudy | 20° /9° | 0 mm | 6 | |
| Apr. 8 | Sunny | 22° /9° | 0 mm | 6 | |
| Apr. 9 | Sunny | 25° /11° | 0 mm | 7 | |
| Apr. 10 | Partly cloudy | 25° /13° | 0 mm | 8 | |
| Apr. 11 | Sunny | 24° /13° | 0 mm | 6 | |
| Apr. 12 | Sunny | 20° /11° | 7.7 mm | 5 | |
| Apr. 13 | Light rain shower | 17° /8° | 1.8 mm | 5 | |
| Apr. 14 | Sunny | 17° /8° | 3.3 mm | 6 | |
| Apr. 15 | Patchy rain possible | 19° /7° | 0.1 mm | 6 | |
| Apr. 16 | Overcast | 20° /10° | 0 mm | 6 | |
| Apr. 17 | Partly cloudy | 19° /10° | 9.6 mm | 6 | |
| Apr. 18 | Overcast | 22° /11° | 0 mm | 6 | |
| Apr. 19 | Sunny | 25° /12° | 0 mm | 7 | |
| Apr. 20 | Sunny | 24° /12° | 0 mm | 7 | |
| Apr. 21 | Partly cloudy | 23° /12° | 0.8 mm | 7 | |
| Apr. 22 | Sunny | 22° /10° | 0 mm | 7 | |
| Apr. 23 | Patchy rain possible | 21° /10° | 0 mm | 6 | |
| Apr. 24 | Partly cloudy | 20° /8° | 0 mm | 6 | |
| Apr. 25 | Patchy rain possible | 15° /9° | 0.3 mm | 4 | |
| Apr. 26 | Patchy rain possible | 14° /8° | 4 mm | 4 | |
| Apr. 27 | Sunny | 18° /8° | 0.5 mm | 6 | |
| Apr. 28 | Sunny | 21° /9° | 0 mm | 7 | |
| Apr. 29 | Sunny | 23° /10° | 0 mm | 7 | |
| Apr. 30 | Sunny | 23° /11° | 0 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Ontario in April is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Ontario forecast closer to your planned date for the most up-to-date weather information.
Change Month
Ontario in April - FAQ
What are the expected maximum and minimum temperatures in Ontario during April?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Ontario during April?
In April, Ontario can expect light to moderate rainfall, totaling 26.9 mm across approximately 4 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Ontario during April?
The average wind speed in Ontario during April is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
April rainfall patterns in Ontario
Explore the daily rainfall trends and prepare for Ontarios April weather 💧
Typically, Ontario has 4 rainy days in April with a total of 26.9 mm of rainfall.
UV exposure in Ontario during April
Stay informed about UV levels for safe outdoor activities throughout the month of April ☀️
Quick links
More Ontario weather pages
You are here
Where is Ontario?Get accurate weather forecasts for Ontario, located at latitude 34.063 and longitude -117.651. Stay updated with localized weather information tailored for Ontario.
Found a mistake?
We appreciate your attention to details. Tell us here.