Weather in Ontario — today, tomorrow and 14-day forecast
Weather in Ontario now: +29°, partly cloudy, wind 2.3 m/s, humidity 29%. Accurate forecast for today, tomorrow, 3 days and 2 weeks — temperature, precipitation, pressure and wind.
Weather in Ontario now
Hourly forecast for today in Ontario
Weather in Ontario tomorrow
From +24° to +38° — day and night.
Weather in Ontario for 3 days
From +24° to +38° — day and night.
Weather in Ontario for the week
Including the 5-day outlook.
From +24° to +38° — day and night.
Weather in Ontario for 2 weeks
Including the 10-day outlook.
From +24° to +39° — day and night.
Weekend weather in Ontario
Weather for the weather-sensitive
📒 Weather diary in Ontario
Ready-made observation table for August: past days are already filled in with weather-station data — for school and beyond. Open the diary →
What to do in Ontario in weather like this 🎯
✉️ Weather forecast by email
Get the forecast for this city by email — every day at 17:00 Moscow time.
The Moon today 🌙
Ontario, Kaliforniya, United States. Population 171 214.
Precipitation map 🌧️
Cities near Ontario 📍
FAQ about weather in Ontario ❓
What's the weather in Ontario right now?
Now +29°, partly cloudy, wind 2.3 m/s, S-W, humidity 29%. Feels like +27°.
What's the weather in Ontario tomorrow?
Tomorrow: +38° by day, +24° at night, partly cloudy.
Sunrise and sunset in Ontario?
Sunrise 05:14, sunset 18:36, day length 13h 22m.
What's the pressure and humidity in Ontario?
Pressure 760 mmHg, humidity 29%, wind 4 m/s. Matters for weather-sensitive people.
Do I need an umbrella in Ontario today?
No, precipitation is unlikely — you can go out without an umbrella.
Will it be hot in Ontario?
Up to +36° by day — hot. Drink more water, avoid the sun from noon to 4 PM, wear light clothes and a hat.
Do I need sunscreen in Ontario?
Yes, the UV index is 11 — high. Use SPF 30+, especially for children; no more than 20-30 minutes in direct sun unprotected.
How long is it safe to stay in the sun in Ontario?
At UV 11, no more than 20–30 minutes unprotected; longer with SPF 30+ and shade.
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Weather in Ontario — in detail
Weather in Ontario from “Pogoda 1” — an accurate, free forecast: current temperature, feels-like, wind, atmospheric pressure, humidity and precipitation. Available for today, tomorrow, 3, 5 and 10 days, a week, 2 weeks and a month, plus hourly weather, monthly climate, water temperature, air quality and an observation archive since 2017.
To quickly check the weather in Ontario anytime, add the city to favorites — and get a daily forecast by email at 17:00 (Moscow time). Note: the forecast may be refined as new data arrives. Data: OpenWeather, Open-Meteo, met.no.
Photo Ontario: Original uploader was Ptrbnsn at en.wikipedia / CC BY-SA 3.0 · Wikimedia Commons