Ottawa, Canada Hourly Forecast

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68°
Partly cloudy Feels like 68°
Updated 4 hours ago

Ottawa temperature trend - Next 24 hours

67° 12 AM 12 AM - 67°F (19°C), Clear, 8% precip 1 AM - 68°F (20°C), Partly cloudy, 10% precip 2 AM - 64°F (18°C), Clear, 10% precip 63° 3 AM 3 AM - 63°F (17°C), Clear, 11% precip 4 AM - 63°F (17°C), Clear, 11% precip 5 AM - 62°F (17°C), Clear, 11% precip 60° 6 AM 6 AM - 60°F (15°C), Clear, 12% precip 7 AM - 62°F (17°C), Sunny, 12% precip 8 AM - 65°F (18°C), Sunny, 11% precip 69° 9 AM 9 AM - 69°F (20°C), Sunny, 8% precip 10 AM - 70°F (21°C), Sunny, 7% precip 11 AM - 76°F (25°C), Sunny, 7% precip 74° 12 PM 12 PM - 74°F (23°C), Partly Cloudy, 5% precip 1 PM - 76°F (24°C), Patchy rain nearby, 19% precip 2 PM - 76°F (24°C), Patchy rain nearby, 20% precip 75° 3 PM 3 PM - 75°F (24°C), Partly Cloudy 4 PM - 77°F (25°C), Partly Cloudy 5 PM - 73°F (23°C), Patchy rain nearby, 14% precip 73° 6 PM 6 PM - 73°F (23°C), Patchy rain nearby, 28% precip 7 PM - 69°F (21°C), Patchy rain nearby, 30% precip 8 PM - 65°F (18°C), Patchy rain nearby, 22% precip 64° 9 PM 9 PM - 64°F (18°C), Patchy light drizzle, 58% precip 10 PM - 62°F (17°C), Patchy rain nearby, 28% precip 11 PM - 62°F (16°C), Patchy rain nearby, 34% precip

The next 24 hours at a glance

  • Warmest hour: 4 PM - around 77°
  • Coolest hour: 6 AM - around 60°
  • Highest rain chance: 9 PM (58%) - pack accordingly
  • UV peak: 1 PM at index 6 - sun protection recommended
  • Windiest: 2 PM at 7 mph

Ottawa hourly weather - Wednesday, August 12

In Ottawa, expect a high near 77°F (25°C) around 4 PM and a low of 60°F (15°C) near 6 AM; precipitation risk peaks at 58% around 9 PM.

TimeConditionsTemp FeelsRainWind HumidityUV
12 AM Clear 67° 67° 8% 4 mph WNW 77% 0
1 AM Partly cloudy 68° 68° 10% 4 mph WNW 68% 0
2 AM Clear 64° 64° 10% 5 mph WNW 83% 0
3 AM Clear 63° 63° 11% 5 mph WNW 84% 0
4 AM Clear 63° 62° 11% 5 mph NW 84% 0
5 AM Clear 62° 61° 11% 5 mph NW 84% 0
6 AM Clear 60° 59° 12% 5 mph NW 86% 0
7 AM Sunny 62° 62° 12% 5 mph NW 88% 0
8 AM Sunny 65° 66° 11% 4 mph NW 84% 1
9 AM Sunny 69° 71° 8% 4 mph NW 77% 1
10 AM Sunny 70° 72° 7% 4 mph WNW 75% 3
11 AM Sunny 76° 80° 7% 5 mph W 73% 4
12 PM Partly Cloudy 74° 73° 5% 6 mph W 58% 6
1 PM Patchy rain nearby 76° 79° 19% 7 mph WSW 80% 6
2 PM Patchy rain nearby 76° 74° 20% 7 mph W 56% 6
3 PM Partly Cloudy 75° 74° 4% 6 mph NW 56% 3
4 PM Partly Cloudy 77° 77° 3% 4 mph WNW 52% 2
5 PM Patchy rain nearby 73° 74° 14% 4 mph WSW 62% 2
6 PM Patchy rain nearby 73° 76° 28% 2 mph WSW 68% 0
7 PM Patchy rain nearby 69° 73° 30% 0 mph S 77% 0
8 PM Patchy rain nearby 65° 67° 22% 1 mph N 80% 0
9 PM Patchy light drizzle 64° 65° 58% 3 mph NNE 82% 0
10 PM Patchy rain nearby 62° 63° 28% 3 mph NNE 86% 0
11 PM Patchy rain nearby 62° 62° 34% 3 mph NE 88% 0

Ottawa hourly weather - Thursday, August 13

In Ottawa, expect a high near 75°F (24°C) around 2 PM and a low of 54°F (12°C) near 6 AM; precipitation risk peaks at 50% around 12 AM.

TimeConditionsTemp FeelsRainWind HumidityUV
12 AM Patchy rain nearby 61° 62° 50% 3 mph NNE 89% 0
1 AM Partly Cloudy 59° 59° 17% 3 mph N 90% 0
2 AM Partly Cloudy 57° 57° 19% 3 mph N 91% 0
3 AM Partly Cloudy 57° 56° 17% 4 mph NW 91% 0
4 AM Clear 56° 54° 15% 4 mph NW 91% 0
5 AM Clear 55° 53° 16% 5 mph NW 91% 0
6 AM Partly Cloudy 54° 53° 17% 5 mph WNW 92% 0
7 AM Partly Cloudy 56° 54° 17% 5 mph WNW 92% 0
8 AM Partly Cloudy 61° 60° 17% 5 mph WNW 87% 1
9 AM Partly Cloudy 65° 64° 12% 6 mph WNW 79% 2
10 AM Sunny 68° 68° 7% 6 mph NW 69% 3
11 AM Patchy rain nearby 71° 70° 20% 6 mph NW 63% 5
12 PM Patchy rain nearby 73° 72° 20% 7 mph WNW 58% 6
1 PM Patchy rain nearby 74° 71° 17% 9 mph WNW 57% 6
2 PM Patchy rain nearby 75° 72° 9% 10 mph W 53% 6
3 PM Partly Cloudy 74° 71° 4% 10 mph WNW 57% 4
4 PM Sunny 73° 70° 4% 8 mph WNW 61% 2
5 PM Sunny 74° 72° 4% 9 mph NW 59% 1
6 PM Sunny 70° 68° 6% 8 mph NW 66% 1
7 PM Sunny 68° 67° 7% 6 mph NNW 71% 0
8 PM Sunny 63° 62° 9% 5 mph NNW 76% 0
9 PM Clear 61° 60° 8% 5 mph NW 76% 0
10 PM Clear 59° 58° 9% 4 mph NW 77% 0
11 PM Clear 58° 56° 10% 4 mph NNW 77% 0

Quick answers for the hours ahead

What is the warmest hour in Ottawa today?
4 PM is forecast to be the warmest, at about 77°F (25°C) with partly cloudy.
Will it rain in Ottawa tonight?
Quite possibly - the chance of precipitation reaches 58% around 9 PM. Keep rain gear handy.
When is the UV index highest in Ottawa today?
Around 1 PM, when it reaches 6. From UV 3 upward, sun protection is recommended.

Ottawa hour-by-hour: what to expect

Over the next 24 hours in Ottawa, temperatures range from 60°F (15°C) around 6 AM up to 77°F (25°C) near 4 PM - right in line with the typical August high of 77°F (25°C).

Precipitation is a real possibility: the chance of rain peaks at 58% around 9 PM. UV reaches 6 (1 PM) - sun protection recommended through midday.

The “feels like” column blends humidity and wind into an apparent temperature - see how it works in our feels-like temperature guide. Planning further ahead? Check the Ottawa 14-day forecast or the monthly climate averages.

Hourly forecasts nearby