Ottawa, Canada Hourly Forecast
Ottawa temperature trend - Next 24 hours
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.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 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.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 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?
Will it rain in Ottawa tonight?
When is the UV index highest in Ottawa today?
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.