Ontario 天氣 預報
Ontario weather: 9°C, 陰天. 逐小時 forecast, 14-day outlook, UV, air quality and the best time至visit.
14-day forecast for Ontario
最高 / 最低; 降雨; UV
| 日期 | 天氣狀況 | 最高 / 最低 | 降雨 | 風 | UV |
|---|---|---|---|---|---|
| 週三, 十月 21 | 🌦️ 毛毛雨 | 11° / 2° | 46% · 1 mm | 17 km/h | 3 |
| 週四, 十月 22 | ☁️ 陰天 | 14° / 0° | 1% | 10 km/h | 3 |
| 週五, 十月 23 | ☁️ 陰天 | 17° / 4° | 0% | 15 km/h | 3 |
| 週六, 十月 24 | 🌦️ 毛毛雨 | 16° / 10° | 31% · 1 mm | 27 km/h | 2 |
| 週日, 十月 25 | ☁️ 陰天 | 16° / 1° | 13% | 27 km/h | 3 |
| 週一, 十月 26 | ☁️ 陰天 | 3° / -3° | 2% | 13 km/h | 2 |
| 週二, 十月 27 | ☁️ 陰天 | 6° / -3° | 1% | 15 km/h | 2 |
| 週三, 十月 28 | 🌦️ Light drizzle | 7° / -2° | 22% · 1 mm | 17 km/h | 2 |
| 週四, 十月 29 | 🌨️ 雪 | 1° / -3° | 22% · 4 mm | 22 km/h | 2 |
| 週五, 十月 30 | ☁️ 陰天 | 0° / -4° | 14% | 21 km/h | 2 |
| 週六, 十月 31 | 🌦️ Light drizzle | 6° / -5° | 16% · 1 mm | 29 km/h | 2 |
| 週日, 十一月 1 | 🌦️ Light drizzle | 6° / -1° | 24% · 1 mm | 25 km/h | 1 |
| 週一, 十一月 2 | ☀️ 晴朗 | 6° / -2° | 29% | 9 km/h | 2 |
| 週二, 十一月 3 | ⛅ 局部多雲 | 9° / -0° | 27% | 10 km/h | 2 |
The two-week trend
Cooling. The second half of the window averages 7°C cooler than the days immediately ahead.
The window averages 8°C against a 十月 normal of 11°C - 2°C below.
The next 7 days look unusually dry - roughly 10% of a normal 十月 week (2 mm against 16 mm).
What this means for Ontario
Today is about average for 十月. The forecast high of 11°C is in line，天氣為the 11°C typical for this month.
A 46% chance means rain is likely somewhere nearby at some point - carry a layer, but do not cancel.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in 六月至八月.
The gap between the warmest and coldest month averages 36°C.
What至pack, what至skip
- A warm mid-layer and gloves for early mornings and evenings
- Insulated outer layer, hat and boots，天氣為grip for ice
- If your dates are flexible, avoid 二月, 十一月 and 十二月 - historically the least comfortable months here.
查看 Ontario 的分時預報
Ontario weather - more answers
Explore Ontario
Every topic we hold for this place, and the same topic for the places around it.
天氣 for related places
Frequently asked questions
Where is Ontario?
Ontario is a province in 加拿大. Its coordinates are 51.2538, -85.3232. It lies in 北美洲.
What is the weather like in Ontario現在?
It is currently 9°C (48°F)，天氣為陰天. 濕度 is 75% and wind is 11 km/h.
When is the best time至visit Ontario?
六月, 七月, 八月 and 九月 offer the most comfortable conditions in Ontario, which has a subarctic climate. 二月, 十一月 and 十二月 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 5:39 PM.
How many people live in Ontario?
Ontario has a population of approximately 15.6 million.
What is the nearest airport至Ontario?
The closest airports are Toronto Pearson International Airport (YYZ), 944 km away.
What are the top things至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. |
|---|---|
| 預報 and observations | Open-Meteo (ECMWF and national models). |
| 空氣品質 and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| 氣候 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 十月 21, 2026 at 5:39 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
