10-Day Weather Forecast for Ontario (CA)

Six-hourly outlook through Saturday 31 October. Updated every three hours via MET Norway.

Day
Night
23:00
Morning
05:00
Afternoon
11:00
Evening
17:00
Wednesday
21 Oct
—
—
Heavy rain showers
22°C (72°F)
12 mm (0.5 in)
Heavy rain
21°C (70°F)
16 mm (0.6 in)
Hourly ›
Thursday
22 Oct
Heavy rain showers
16°C (61°F)
5.8 mm (0.2 in)
Light rain showers
15°C (59°F)
0.7 mm (0.03 in)
Rain showers
17°C (63°F)
3.1 mm (0.1 in)
Light rain showers
15°C (59°F)
0.9 mm (0.04 in)
Hourly ›
Friday
23 Oct
Partly cloudy
13°C (55°F)
0 mm (0 in)
Mostly sunny
13°C (55°F)
0 mm (0 in)
Partly cloudy
17°C (63°F)
0.5 mm (0.02 in)
Clear skies
17°C (63°F)
0 mm (0 in)
Hourly ›
Saturday
24 Oct
Clear skies
13°C (55°F)
0 mm (0 in)
Clear skies
12°C (54°F)
0 mm (0 in)
Clear skies
19°C (66°F)
0 mm (0 in)
Clear skies
20°C (68°F)
0 mm (0 in)
Hourly ›
Sunday
25 Oct
Clear skies
15°C (59°F)
0 mm (0 in)
Clear skies
14°C (57°F)
0 mm (0 in)
Clear skies
22°C (72°F)
0 mm (0 in)
Partly cloudy
22°C (72°F)
0 mm (0 in)
Hourly ›
Monday
26 Oct
Cloudy
17°C (63°F)
0 mm (0 in)
Clear skies
17°C (63°F)
0 mm (0 in)
Cloudy
22°C (72°F)
0 mm (0 in)
Mostly clear
23°C (73°F)
0 mm (0 in)
Hourly ›
Tuesday
27 Oct
Mostly clear
16°C (61°F)
0 mm (0 in)
Cloudy
16°C (61°F)
0 mm (0 in)
Clear skies
22°C (72°F)
0 mm (0 in)
Clear skies
23°C (73°F)
0 mm (0 in)
Hourly ›
Wednesday
28 Oct
Partly cloudy
18°C (64°F)
0 mm (0 in)
Cloudy
16°C (61°F)
0 mm (0 in)
Partly cloudy
21°C (70°F)
0 mm (0 in)
Partly cloudy
23°C (73°F)
0 mm (0 in)
Hourly ›
Thursday
29 Oct
Mostly clear
17°C (63°F)
0 mm (0 in)
Partly cloudy
16°C (61°F)
0 mm (0 in)
Clear skies
23°C (73°F)
0 mm (0 in)
Clear skies
24°C (75°F)
0 mm (0 in)
Hourly ›
Friday
30 Oct
Partly cloudy
17°C (63°F)
0 mm (0 in)
Clear skies
16°C (61°F)
0 mm (0 in)
Cloudy
22°C (72°F)
0 mm (0 in)
—
Hourly ›
Data from MET Norway · Updated every three hours.

What's the weather in Ontario this week?

Today's weather - Wednesday 21 Oct

For the rest of Wednesday the predicted weather in Ontario is heavy rain showers during the afternoon and evening. The temperature will be around 22°C (72°F).

Tomorrow's weather - Thursday 22 Oct

Tomorrow's weather in Ontario will be rain showers throughout the day. The maximum predicted temperature is a mild 17°C (63°F), while the minimum temperature is a mild 15°C (59°F).

10-Day Weather Forecast

The 10-day forecast shows that temperatures will reach 23°C (73°F) on Tuesday before declining again. During this period, expect daytime highs around 21°C (70°F) and nighttime lows around 15°C (59°F). Compared to typical October conditions, these temperatures are much cooler than usual. There will be plenty of sunshine during this period. Precipitation levels will be much more than usual (versus normal October rainfall), with mostly dry conditions. Precipitation is likely on about 2 days (Wed, Thu). Wind conditions will be generally calm.

Weather Forecast FAQ for Ontario

When will be the warmest day next week?

The warmest day is expected to be Tuesday with a high of 23°C (73°F).

When will be the coldest day?

The coldest day is forecasted for Saturday with a low of 12°C (54°F).

Will it rain next week in Ontario?

Yes, rain is expected on 2 days , specifically on Wed, Thu.

How much rainfall is expected next week?

A total of 39 mm (1.5 in) of rain is forecasted for the 10-day period.

What will be the temperature range next week?

Temperatures will range from 12°C (54°F) to 23°C (73°F).

More about Ontario

Explore the full Ontario climate overview with monthly averages, or check rainfall data and temperature by month.

Ontario weather by month

Browse monthly averages for Ontario: climate by month with temperature, rainfall and sunshine.

Travel inspiration

Need travel inspiration? Check out our bucket list articles and be inspired.