Hourly Forecast - Ottawa
| Date/Time (EDT) | Temp. (°C) | Weather Conditions | Likelihood of precip (%) | UV index | Wind (km/h) | Humidex |
|---|---|---|---|---|---|---|
| 20 July 2026 | ||||||
| 15:00 | 25 | Sunny | 0 | 5 | SW 20 | 28 |
| 16:00 | 26 | Sunny | 0 | 3 | SW 20 | 29 |
| 17:00 | 26 | Sunny | 0 | 1 | SW 20 | 30 |
| 18:00 | 25 | Sunny | 0 | * | S 10 | 29 |
| 19:00 | 24 | Sunny | 0 | * | S 10 | 28 |
| 20:00 | 22 | Sunny | 0 | * | S 10 | 25 |
| 21:00 | 21 | Clear | 0 | * | S 10 | * |
| 22:00 | 20 | Clear | 0 | * | S 10 | * |
| 23:00 | 19 | A few clouds | 0 | * | S 10 | * |
| 21 July 2026 | ||||||
| 00:00 | 18 | A few clouds | 0 | * | S 10 | * |
| 01:00 | 18 | A few clouds | 0 | * | S 10 | * |
| 02:00 | 17 | Partly cloudy | 0 | * | S 10 | * |
| 03:00 | 17 | Partly cloudy | 0 | * | S 10 | * |
| 04:00 | 16 | Partly cloudy | 0 | * | S 10 | * |
| 05:00 | 16 | Mainly cloudy | 0 | * | S 10 | * |
| 06:00 | 17 | A mix of sun and cloud | 0 | * | S 10 | * |
| 07:00 | 19 | Mainly sunny | 0 | 1 | S 20 | * |
| 08:00 | 20 | Sunny | 0 | 2 | S 30 gusts 50 | 25 |
| 09:00 | 22 | Mainly sunny | 0 | 4 | S 30 gusts 50 | 27 |
| 10:00 | 23 | A mix of sun and cloud | 0 | 6 | S 30 gusts 50 | 29 |
| 11:00 | 25 | Mainly cloudy | 0 | 6 | SW 15 | 31 |
| 12:00 | 23 | Cloudy | 0 | 5 | S 10 | 30 |
| 13:00 | 22 | Showers | 90 | 3 | SE 10 | 29 |
| 14:00 | 20 | Showers. Risk of thunderstorms | 90 | 2 | SE 20 | 28 |
* Value not significant
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