Ottawa, Canada Hourly Forecast
Ottawa temperature trend - Next 24 hours
The next 24 hours at a glance
- Warmest hour: 6 PM - around 75°
- Coolest hour: 6 AM - around 59°
- Highest rain chance: 5 PM (76%) - pack accordingly
- UV peak: 11 AM at index 4 - sun protection recommended
- Windiest: 4 PM at 11 mph
Ottawa hourly weather - Wednesday, August 26
In Ottawa, expect a high near 75°F (24°C) around 6 PM and a low of 64°F (18°C) near 11 PM; precipitation risk peaks at 27% around 11 PM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 6 PM | Sunny | 75° | 74° | 5% | 8 mph SE | 63% | 1 | |
| 7 PM | Sunny | 75° | 76° | 7% | 6 mph SSE | 72% | 0 | |
| 8 PM | Overcast | 69° | 69° | 20% | 5 mph SSE | 74% | 0 | |
| 9 PM | Overcast | 66° | 68° | 24% | 4 mph SE | 83% | 0 | |
| 10 PM | Overcast | 65° | 66° | 26% | 3 mph SE | 84% | 0 | |
| 11 PM | Overcast | 64° | 65° | 27% | 4 mph E | 85% | 0 |
Ottawa hourly weather - Thursday, August 27
In Ottawa, expect a high near 72°F (22°C) around 4 PM and a low of 59°F (15°C) near 6 AM; precipitation risk peaks at 76% around 5 PM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Partly Cloudy | 62° | 62° | 16% | 5 mph E | 88% | 0 | |
| 1 AM | Mist | 60° | 60° | 31% | 5 mph E | 95% | 0 | |
| 2 AM | Partly Cloudy | 60° | 60° | 19% | 5 mph E | 91% | 0 | |
| 3 AM | Overcast | 59° | 59° | 31% | 5 mph E | 92% | 0 | |
| 4 AM | Overcast | 60° | 60° | 29% | 6 mph E | 90% | 0 | |
| 5 AM | Overcast | 61° | 60° | 30% | 5 mph E | 90% | 0 | |
| 6 AM | Mist | 59° | 58° | 32% | 6 mph E | 95% | 0 | |
| 7 AM | Overcast | 59° | 58° | 30% | 6 mph E | 92% | 0 | |
| 8 AM | Overcast | 62° | 61° | 23% | 5 mph ESE | 82% | 1 | |
| 9 AM | Patchy rain nearby | 66° | 66° | 25% | 6 mph S | 74% | 2 | |
| 10 AM | Light rain | 65° | 65° | 69% | 6 mph S | 90% | 2 | |
| 11 AM | Light drizzle | 64° | 65° | 58% | 6 mph SSE | 94% | 4 | |
| 12 PM | Light rain shower | 65° | 66° | 46% | 7 mph SSE | 93% | 4 | |
| 1 PM | Light rain shower | 70° | 70° | 43% | 9 mph S | 86% | 3 | |
| 2 PM | Light rain shower | 71° | 72° | 67% | 9 mph SSW | 86% | 2 | |
| 3 PM | Patchy rain nearby | 72° | 73° | 67% | 10 mph SSW | 85% | 4 | |
| 4 PM | Light rain shower | 72° | 73° | 74% | 11 mph SW | 86% | 3 | |
| 5 PM | Light rain shower | 71° | 72° | 76% | 10 mph SW | 88% | 2 | |
| 6 PM | Patchy rain nearby | 70° | 72° | 67% | 8 mph WSW | 90% | 1 | |
| 7 PM | Patchy rain nearby | 69° | 70° | 72% | 8 mph WSW | 93% | 0 | |
| 8 PM | Mist | 66° | 68° | 49% | 6 mph W | 96% | 0 | |
| 9 PM | Mist | 65° | 67° | 20% | 5 mph W | 96% | 0 | |
| 10 PM | Mist | 64° | 65° | 20% | 6 mph WSW | 97% | 0 | |
| 11 PM | Fog | 62° | 62° | 44% | 7 mph WNW | 98% | 0 |
Ottawa hourly weather - Friday, August 28
In Ottawa, expect a high near 68°F (20°C) around 3 PM and a low of 49°F (10°C) near 7 AM; precipitation risk peaks at 32% around 3 AM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Patchy rain nearby | 62° | 60° | 30% | 8 mph NW | 96% | 0 | |
| 1 AM | Clear | 58° | 55° | 18% | 8 mph NW | 96% | 0 | |
| 2 AM | Mist | 56° | 53° | 29% | 7 mph NW | 96% | 0 | |
| 3 AM | Overcast | 54° | 50° | 32% | 9 mph NNW | 94% | 0 | |
| 4 AM | Overcast | 53° | 50° | 31% | 8 mph NNW | 92% | 0 | |
| 5 AM | Partly Cloudy | 53° | 50° | 17% | 7 mph NW | 93% | 0 | |
| 6 AM | Mist | 50° | 48° | 19% | 6 mph NW | 95% | 0 | |
| 7 AM | Mist | 49° | 47° | 19% | 6 mph NW | 95% | 0 | |
| 8 AM | Sunny | 51° | 48° | 13% | 6 mph NNW | 90% | 0 | |
| 9 AM | Partly Cloudy | 54° | 51° | 12% | 6 mph NNW | 81% | 4 | |
| 10 AM | Cloudy | 58° | 54° | 15% | 5 mph NNW | 68% | 3 | |
| 11 AM | Overcast | 61° | 57° | 15% | 6 mph NNW | 60% | 4 | |
| 12 PM | Overcast | 62° | 58° | 13% | 5 mph NNW | 56% | 4 | |
| 1 PM | Overcast | 64° | 60° | 12% | 4 mph NNW | 53% | 4 | |
| 2 PM | Partly Cloudy | 65° | 62° | 5% | 4 mph NNW | 50% | 5 | |
| 3 PM | Sunny | 68° | 65° | 2% | 4 mph NW | 47% | 5 | |
| 4 PM | Overcast | 65° | 60° | 13% | 9 mph NW | 58% | 4 | |
| 5 PM | Overcast | 64° | 58° | 14% | 9 mph NW | 58% | 4 | |
| 6 PM | Overcast | 60° | 54° | 15% | 11 mph NW | 62% | 4 | |
| 7 PM | Partly Cloudy | 59° | 53° | 6% | 9 mph NW | 64% | 5 | |
| 8 PM | Clear | 57° | 51° | 4% | 8 mph NW | 64% | 0 | |
| 9 PM | Clear | 54° | 50° | 6% | 6 mph NW | 71% | 0 | |
| 10 PM | Clear | 51° | 48° | 9% | 5 mph NW | 79% | 0 | |
| 11 PM | Clear | 49° | 47° | 10% | 5 mph NW | 82% | 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 59°F (15°C) around 6 AM up to 75°F (24°C) near 6 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 76% around 5 PM.
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.