10-Day Weather Forecast for Ontario (OR)

Six-hourly outlook through Thursday 17 September. Updated every three hours via MET Norway.

Day
Night
00:00
Morning
06:00
Afternoon
12:00
Evening
18:00
Monday
7 Sep
Clear skies
15°C (59°F)
0 mm (0 in)
Hourly ›
Tuesday
8 Sep
Clear skies
14°C (57°F)
0 mm (0 in)
Clear skies
10°C (50°F)
0 mm (0 in)
Clear skies
20°C (68°F)
0 mm (0 in)
Clear skies
24°C (75°F)
0 mm (0 in)
Hourly ›
Wednesday
9 Sep
Clear skies
16°C (61°F)
0 mm (0 in)
Clear skies
12°C (54°F)
0 mm (0 in)
Clear skies
22°C (72°F)
0 mm (0 in)
Clear skies
27°C (81°F)
0 mm (0 in)
Hourly ›
Thursday
10 Sep
Clear skies
18°C (64°F)
0 mm (0 in)
Partly cloudy
13°C (55°F)
0 mm (0 in)
Partly cloudy
22°C (72°F)
0 mm (0 in)
Partly cloudy
31°C (88°F)
0 mm (0 in)
Hourly ›
Friday
11 Sep
Clear skies
22°C (72°F)
0 mm (0 in)
Clear skies
15°C (59°F)
0 mm (0 in)
Clear skies
21°C (70°F)
0 mm (0 in)
Clear skies
25°C (77°F)
0 mm (0 in)
Hourly ›
Saturday
12 Sep
Cloudy
18°C (64°F)
0 mm (0 in)
Cloudy
14°C (57°F)
0 mm (0 in)
Mostly sunny
24°C (75°F)
0 mm (0 in)
Clear skies
24°C (75°F)
0 mm (0 in)
Hourly ›
Sunday
13 Sep
Mostly clear
13°C (55°F)
0 mm (0 in)
Mostly sunny
11°C (52°F)
0 mm (0 in)
Cloudy
15°C (59°F)
0.1 mm (0 in)
Cloudy
19°C (66°F)
0 mm (0 in)
Hourly ›
Monday
14 Sep
Mostly clear
14°C (57°F)
0 mm (0 in)
Clear skies
9°C (48°F)
0 mm (0 in)
Clear skies
18°C (64°F)
0 mm (0 in)
Clear skies
23°C (73°F)
0 mm (0 in)
Hourly ›
Tuesday
15 Sep
Clear skies
15°C (59°F)
0 mm (0 in)
Clear skies
11°C (52°F)
0 mm (0 in)
Clear skies
21°C (70°F)
0 mm (0 in)
Mostly clear
27°C (81°F)
0 mm (0 in)
Hourly ›
Wednesday
16 Sep
Partly cloudy
19°C (66°F)
0 mm (0 in)
Cloudy
14°C (57°F)
0 mm (0 in)
Partly cloudy
24°C (75°F)
0 mm (0 in)
Partly cloudy
31°C (88°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 - Monday 7 Sep

Tonight, the weather in Ontario will be clear skies, with temperatures around 15°C (59°F), dropping to 10°C (50°F) by morning.

Tomorrow's weather - Tuesday 8 Sep

Tomorrow's weather in Ontario will be clear skies. Temperatures will range from a cold 10°C (50°F) to a warm 24°C (75°F).

10-Day Weather Forecast

Over the next 10 days, temperatures in Ontario will be will get warmer, maximum temperatures reach 31°C (88°F) on Thursday, with average daytime highs of 23°C (73°F) and nighttime lows of 12°C (54°F) over this period. Compared to normal September conditions, this is a bit cooler than usual. The next 10 days will feature plenty of sunshine. Expect much less rainfall than usual (compared to average September levels), the days are characterized by mostly dry conditions. 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 Thursday with a high of 31°C (88°F).

When will be the coldest day?

The coldest day is forecasted for Monday with a low of 9°C (48°F).

Will it rain next week in Ontario?

No significant rainfall is currently expected during the next 10 days.

How much rainfall is expected next week?

A total of 0 mm (0 in) of rain is forecasted for the 10-day period.

What will be the temperature range next week?

Temperatures will range from 9°C (48°F) to 31°C (88°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.