Ottawa weather live forecast

Today's maximum temperature in Ottawa is expected to be 18°C. Select a day from the live weather forecast for Ottawa, Ontario, Canada for more weather parameters.

Sunday
11th Oct
18

6

3

3
Monday
12th Oct
16

10

0

1
Tuesday
13th Oct
9

6

0

1
Wednesday
14th Oct
11

8

0

2
Thursday
15th Oct
12

5

2

4

5-day weather forecast updated at 04:00 on Sunday 11th October 2026 GMT

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The 5-day weather forecast for Ontario (Ottawa) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Ottawa weather forecast by day

Below are the detailed weather forecasts for Ottawa for the next 5 days.

Ottawa weather for Sunday 11th October 2026

Expect broken clouds in Ottawa, Ontario with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the south.

18
°C maximum temperature
6
°C minimum temperature
broken clouds
3
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
18
°C wind chill
15
kph wind from S

Ottawa weather for Monday 12th October 2026

Expect mostly cloudy with light rain in Ottawa, Ontario with a maximum temperature of 16°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 93% chance of some rain and a gentle breeze of 17 kph from the west.

16
°C maximum temperature
10
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
1
UV index (Low)
93
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
17
kph wind from W

Ottawa weather for Tuesday 13th October 2026

Expect isolated thunderstorms in Ottawa, Ontario with a maximum temperature of 9°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 95% chance of some rain and a gentle breeze of 17 kph from the east.

9
°C maximum temperature
6
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
1
UV index (Low)
95
% chance of some rain
<30
mm of rainfall expected
6
°C wind chill
17
kph wind from E

Ottawa weather for Wednesday 14th October 2026

Expect overcast skies in Ottawa, Ontario with a maximum temperature of 11°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north-west.

11
°C maximum temperature
8
°C minimum temperature
overcast skies
0
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
11
°C wind chill
14
kph wind from NW

Ottawa weather for Thursday 15th October 2026

Expect broken clouds in Ottawa, Ontario with a maximum temperature of 12°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north-west.

12
°C maximum temperature
5
°C minimum temperature
broken clouds
2
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
12
°C wind chill
12
kph wind from NW

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Ontario - quick facts
Flight time^✝	8 hours
Time difference	UK -5 to -6 hours
Language(s)	English, French
Currency	Canadian Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes