Ottawa weather live forecast

Today's maximum temperature in Ottawa is expected to be 12°F. Select a day from the live weather forecast for Ottawa, Ontario, Canada for more weather parameters.

Sunday
14th Dec
12

7

6

1
Monday
15th Dec
16

7

2

1
Tuesday
16th Dec
27

9

1

1
Wednesday
17th Dec
34

14

0

1
Thursday
18th Dec
37

12

1

1

5-day weather forecast updated at 04:01 on Sunday 14th December 2025 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 14th December 2025

Expect scattered clouds in Ottawa, Ontario with a maximum temperature of 12°F, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 10 mph from the north-west.

12
°F maximum temperature
7
°F minimum temperature
scattered clouds
6
hours of sunshine
1
UV index (Low)
0
cm of snow expected
0
°F wind chill
10
mph wind from NW

Ottawa weather for Monday 15th December 2025

Expect broken clouds in Ottawa, Ontario with a maximum temperature of 16°F, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 9 mph from the west.

16
°F maximum temperature
7
°F minimum temperature
broken clouds
2
hours of sunshine
1
UV index (Low)
0
cm of snow expected
5
°F wind chill
9
mph wind from W

Ottawa weather for Tuesday 16th December 2025

Expect mostly cloudy with light snow in Ottawa, Ontario with a maximum temperature of 27°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 cm of snow expected with 10% chance of some snow and a moderate breeze of 12 mph from the south.

27
°F maximum temperature
9
°F minimum temperature
mostly cloudy with light snow
1
hour of sunshine
1
UV index (Low)
10
% chance of some snow
<2
cm of snow expected
16
°F wind chill
12
mph wind from S

Ottawa weather for Wednesday 17th December 2025

Expect broken clouds in Ottawa, Ontario with a maximum temperature of 34°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 14 mph from the south-west.

34
°F maximum temperature
14
°F minimum temperature
broken clouds
0
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
25
°F wind chill
14
mph wind from SW

Ottawa weather for Thursday 18th December 2025

Expect cloudy with sleet or snow in Ottawa, Ontario with a maximum temperature of 37°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 2-5 mm of sleet/snow expected with 74% chance of some sleet or snow and a moderate breeze of 14 mph from the south-east.

37
°F maximum temperature
12
°F minimum temperature
cloudy with sleet or snow
1
hour of sunshine
1
UV index (Low)
74
% chance of some sleet or snow
<5
mm of sleet/snow expected
28
°F wind chill
14
mph wind from SE

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Metric (°C) | Imperial (°F)

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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