Ontario (CA)
Today
Today weather in Ontario
Saturday, August 1st, 2026
42°
Sunny
Low 19°
Official weather alert: Heat Advisory. A scorching day is predicted for Ontario Today with temperatures soaring to a blistering 42 °F and settling to a still-warm 19 °F at night. It'll be quite breezy in Ontario Today with average wind speeds of 17 km/h. There's a slight chance of rain at 1%.
42° / 19°
Temp
1%
Rain
17 km/h
Wind
48%
Humidity
Ontario Weather Pages
Ontario hourly forecast for today
Scroll right to see more weather forecasts for Ontario today
| 12:00 AM | 01:00 AM | 02:00 AM | 03:00 AM | 04:00 AM | 05:00 AM | 06:00 AM | 06:02 AM | 07:00 AM | 08:00 AM | 09:00 AM | 10:00 AM | 11:00 AM | 12:00 PM | 01:00 PM | 02:00 PM | 03:00 PM | 04:00 PM | 05:00 PM | 06:00 PM | 07:00 PM | 07:51 PM | 08:00 PM | 09:00 PM | 10:00 PM | 11:00 PM | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| weather |  | | | | | | |  | | | | | | | | | | | | | |  | | | | | Next |
| temperatures | 22.6° | 21.6° | 21° | 20.2° | 20.5° | 19.8° | 19° | Sunrise | 20.6° | 23.8° | 27.2° | 30.9° | 37° | 39.9° | 41.3° | 42.3° | 41.9° | 41.1° | 39.3° | 36.3° | 33.6° | Sunset | 29.8° | 27.3° | 28.1° | 27.4° | |
| Feels like | 24.5° | 23.6° | 22.7° | 21.9° | 21.6° | 20.8° | 20.1° | 22.4° | 25.5° | 27.8° | 31.2° | 37.4° | 39.3° | 40.2° | 40.4° | 40.2° | 38.9° | 37.1° | 35.4° | 33.1° | 29.2° | 27.5° | 27.6° | 26.9° | |||
| wind speed | 4 km/h | 3 km/h | 4 km/h | 4 km/h | 4 km/h | 4 km/h | 3 km/h | 2 km/h | 4 km/h | 6 km/h | 8 km/h | 9 km/h | 11 km/h | 13 km/h | 15 km/h | 17 km/h | 17 km/h | 17 km/h | 16 km/h | 13 km/h | 10 km/h | 7 km/h | 5 km/h | 5 km/h | |||
| wind degree | 255° | 264° | 266° | 243° | 263° | 262° | 275° | 267° | 237° | 226° | 230° | 237° | 236° | 237° | 240° | 241° | 240° | 241° | 241° | 242° | 245° | 248° | 251° | 246° | |||
| wind direction | WSW | W | W | WSW | W | W | W | W | WSW | SW | SW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | |||
| Precipitation | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | |||
| chance for rain | 7% | 8% | 9% | 10% | 7% | 7% | 8% | 8% | 4% | 2% | 1% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 1% | 1% | 1% | 1% | 1% | |||
| chance for snow | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| humidity | 73% | 78% | 79% | 82% | 74% | 74% | 78% | 78% | 66% | 53% | 40% | 30% | 23% | 20% | 18% | 20% | 20% | 21% | 31% | 35% | 39% | 47% | 36% | 37% | |||
| dew point | 17.6° | 17.6° | 17.2° | 17.1° | 15.7° | 15.1° | 15° | 16.5° | 17.1° | 16.9° | 15.6° | 16.4° | 14.6° | 14.1° | 13.1° | 14.7° | 13.6° | 13.1° | 16.4° | 16° | 14.4° | 15.1° | 11.7° | 11.5° | |||
| visibility | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | |||
| cloud cover | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| UV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.3 | 1.3 | 3.2 | 5.8 | 8.4 | 10.3 | 10.8 | 9.9 | 7.7 | 5 | 2.5 | 0.9 | 0.2 | 0 | 0 | 0 | 0 |
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View of Ontario today
Explore Ontario live webcam feed to see how the weather is shaping up today in Ontario. See what people are wearing, check out the sky, and get a sense of the atmosphere before you step outside.
Stay informed and make the most of your day with our live weather updates from Ontario today.
Weather in Ontario today
The weather in Ontario today is expected to be much warmer than usual, with a forecast temperature of 42 °F, compared to an average of 33 °F for August 1st in recent years.
temperatures
42 °F
rain
0 mm
wind
17 km/h
UV
Extreme
Ontario daylight overview ☀️
Today in Ontario, The sun rises at 06:02 and sets at 19:51, giving a total daylight duration of 13 hours and 49 minutes.
Quick links
More Ontario weather pages
What to wear today in Ontario? clothing recommendations
Stay comfortably stylish - your tailored guide for today's Ontario forecast.
Short-sleeve shirt
Shorts
Lightweight pants
Breathable footwear
Sunglasses
Wide brimmed hat
Sunscreen
Flip flop
The weather today in Ontario - FAQ
What is the maximum temperature for today in Ontario?
The maximum temperature for today in Ontario is expected to be 42° degrees. Please dress accordingly to stay comfortable throughout the day.
Will it rain today in Ontario? 🌧️
Yes, there is a 1% chance of rain in Ontario today. We recommend carrying an umbrella or rain gear to stay dry.
What will be the wind speed today in Ontario? 🌀
The wind in Ontario is expected to blow at 17 km/h. This could affect outdoor activities, so plan accordingly.
How should I dress for the weather in Ontario today?
Given the forecast of 42 °F with a 1% chance of rain, we advise checking our "What to wear today" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in Ontario today.
What is the sunrise and sunset time for Ontario today?
The sun is expected to rise at 06:02 and set at 19:51 in Ontario.
How accurate is the weather forecast Ontario today? ✅
Ontario weather forecast for today is based on the most current and sophisticated meteorological models available. While we strive for accuracy, weather conditions can change unexpectedly, so we recommend checking for updates regularly.
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