Ottawa weather live forecast

Today's maximum temperature in Ottawa is expected to be 23°C. Select a day from the live weather forecast for Ottawa, Ontario, Canada for more weather parameters.

Wednesday
20th May
23

9

10

UV7
Thursday
21st May
14

5

12

UV7
Friday
22nd May
19

5

11

UV7
Saturday
23rd May
20

9

8

UV6
Sunday
24th May
19

10

6

UV6

5-day weather forecast updated at 04:00 on Wednesday 20th May 2026 GMT

More about Ottawa

Ottawa by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Ontario

Air Canada: Top flight deals to Canada

Sale

Discover top Air Canada offers on flights to Canada
Browse lowest fares available or search by date
Book flights to Toronto, Vancouver, Calgary, Montreal & more

Go to Air Canada deal >>

View all Air Canada offers

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 Wednesday 20th May 2026

Expect scattered clouds in Ottawa, Ontario with a maximum temperature of 23°C, maximum UV of 7 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the west.

23
°C maximum temperature
9
°C minimum temperature
scattered clouds
10
hours of sunshine
UV7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
23
kph wind from W

Ottawa weather for Thursday 21st May 2026

Expect scattered clouds in Ottawa, Ontario with a maximum temperature of 14°C, maximum UV of 7 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north-west.

14
°C maximum temperature
5
°C minimum temperature
scattered clouds
12
hours of sunshine
UV7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
15
kph wind from NW

Ottawa weather for Friday 22nd May 2026

Expect scattered clouds in Ottawa, Ontario with a maximum temperature of 19°C, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the west.

19
°C maximum temperature
5
°C minimum temperature
scattered clouds
11
hours of sunshine
UV7
UV index (High)
0
mm of rainfall expected
19
°C wind chill
10
kph wind from W

Ottawa weather for Saturday 23rd May 2026

Expect broken clouds in Ottawa, Ontario with a maximum temperature of 20°C, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the east.

20
°C maximum temperature
9
°C minimum temperature
broken clouds
8
hours of sunshine
UV6
UV index (High)
0
mm of rainfall expected
20
°C wind chill
15
kph wind from E

Ottawa weather for Sunday 24th May 2026

Expect broken clouds in Ottawa, Ontario with a maximum temperature of 19°C, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-east.

19
°C maximum temperature
10
°C minimum temperature
broken clouds
6
hours of sunshine
UV6
UV index (High)
0
mm of rainfall expected
19
°C wind chill
16
kph wind from SE

Hurtigruten: Latest offers on worldwide cruises

Sale

Explore latest special offers on Hurtigruten Expeditions
Includes online discount, no single supplement & more
Browse top online deals & destination specific offers

Go to Hurtigruten deal >>

More about Ontario

Be inspired

Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers

We promise not to share your details

Popular travel offers

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