Ontario 天気 予報
Ontario weather: 1°C, 快晴. 時間別 forecast, 14-day outlook, UV, air quality and the best timeからvisit.
7-day forecast for Ontario
最高 / 最低; 降水; UV
| 日 | 状況 | 最高 / 最低 | 降水 | 風 | UV |
|---|---|---|---|---|---|
| 木, 10月 22 | ☁️ 曇り | 14° / 0° | 0% | 11 km/h | 3 |
| 金, 10月 23 | ☁️ 曇り | 15° / 4° | 3% | 15 km/h | 3 |
| 土, 10月 24 | 🌦️ Light drizzle | 16° / 9° | 24% · 0 mm | 27 km/h | 2 |
| 日, 10月 25 | ☁️ 曇り | 15° / 1° | 7% | 30 km/h | 3 |
| 月, 10月 26 | ⛅ 晴れ時々曇り | 2° / -3° | 1% | 19 km/h | 3 |
| 火, 10月 27 | 🌤️ ほぼ晴れ | 5° / -5° | 2% | 15 km/h | 2 |
| 水, 10月 28 | 🌦️ Light drizzle | 8° / -3° | 30% · 2 mm | 20 km/h | 2 |
Weekend outlook
🌦️ 16° / 9°
Light drizzle · 24% rain · wind 27 km/h
☁️ 15° / 1°
曇り · 7% rain · wind 30 km/h
Is today a good dayからvisit?
Activity scores from 0から10 based on temperature, rain, wind, sun and visibility.
Whatからpack, whatからskip
- A warm mid-layer and gloves for early mornings and evenings
- Insulated outer layer, hat and boots、grip for ice
- If your dates are flexible, avoid 2月, 11月 and 12月 - historically the least comfortable months here.
Active alerts for Ontario
Derived from the forecast. No official alert feed is wired for this country yet.
時間帯別のOntario 予報を見る
Ontario weather - more answers
Explore Ontario
Every topic we hold for this place, and the same topic for the places around it.
天気 for related places
Frequently asked questions
Where is Ontario?
Ontario is a province in カナダ. Its coordinates are 51.2538, -85.3232. It lies in 北アメリカ.
What is the weather like in Ontario現在?
It is currently 1°C (34°F)、快晴. 湿度 is 91% and wind is 7 km/h.
When is the best timeからvisit Ontario?
6月, 7月, 8月 and 9月 offer the most comfortable conditions in Ontario, which has a subarctic climate. 2月, 11月 and 12月 are usually the hardest months for outdoor plans.
What time zone is Ontario in?
Ontario observes America/Toronto (UTC-04:00). The local time is 4:21 PM.
How many people live in Ontario?
Ontario has a population of approximately 15.6 million.
What is the nearest airportからOntario?
The closest airports are Toronto Pearson International Airport (YYZ), 944 km away.
What are the top thingsからdo in Ontario?
Popular options include CN Tower and Algonquin Provincial Park.
What places are in Ontario?
Ontario covers 4 places in this atlas, including Ottawa, Toronto, Algonquin Provincial Park and Niagara Falls, Ontario.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (ca-provinces) - coordinates, hierarchy and facts. |
|---|---|
| 予報 and observations | Open-Meteo (ECMWF and national models). |
| 大気質 and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| 気候 averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated 10月 22, 2026 at 4:21 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
