Ottawa
Tomorrow
Tomorrow weather in Ottawa
Tuesday, 21st July 2026
23°
Partly cloudy
Feels like 25° · Low 13°
The weather tomorrow in Ottawa will be much colder than today, with max temperatures up to 22°.
The rain will visit again tomorrow in Ottawa and the expected precipitation are 16 mm.
The wind tomorrow will get stronger and reach 28 km/h.
23° / 13°
Temp
84%
Rain
28 km/h
Wind
86%
Humidity
Ottawa Weather Pages
Ottawa hourly forecast for tomorrow
Scroll right to see more weather forecasts for Ottawa tomorrow
| 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 05:35 | 06:00 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 20:43 | 21:00 | 22:00 | 23:00 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| weather |  | | | | |  |  |  | | | |  | | | |  | |  | | | |  |  |  | | | Next |
| temperatures | 15.2° | 15.3° | 15.2° | 14.7° | 13.6° | 12.8° | Sunrise | 12.8° | 14.6° | 17.3° | 20.4° | 19.7° | 20.9° | 22° | 22.2° | 21.8° | 22.2° | 22.5° | 21° | 20.8° | 21.1° | 20.2° | Sunset | 19.3° | 18.6° | 18.4° | |
| feels like | 15.2° | 15.4° | 15.2° | 14.8° | 13.2° | 12.5° | 12.2° | 14.4° | 17.3° | 20.4° | 19.8° | 20.9° | 22° | 24.6° | 21.8° | 24.6° | 24.8° | 21° | 20.8° | 21.1° | 20.2° | 19.3° | 18.6° | 18.4° | |||
| wind speed | 9 km/h | 9 km/h | 8 km/h | 7 km/h | 8 km/h | 7 km/h | 9 km/h | 8 km/h | 12 km/h | 17 km/h | 15 km/h | 18 km/h | 21 km/h | 27 km/h | 28 km/h | 28 km/h | 28 km/h | 22 km/h | 24 km/h | 27 km/h | 24 km/h | 19 km/h | 18 km/h | 16 km/h | |||
| wind degree | 176° | 143° | 136° | 125° | 110° | 109° | 110° | 107° | 128° | 161° | 167° | 164° | 169° | 179° | 180° | 181° | 190° | 181° | 176° | 186° | 200° | 197° | 182° | 193° | |||
| wind direction | S | SE | SE | SE | ESE | ESE | ESE | ESE | SE | SSE | SSE | SSE | S | S | S | S | S | S | S | S | SSW | SSW | S | SSW | |||
| Precipitation | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0.1 mm | 0.1 mm | 0.1 mm | 1 mm | 1.4 mm | 0.8 mm | 1.7 mm | 0.2 mm | 2.9 mm | 1 mm | 4.2 mm | 2.4 mm | 0.6 mm | 0 mm | |||
| chance for rain | 9% | 10% | 12% | 11% | 13% | 12% | 12% | 11% | 14% | 11% | 33% | 31% | 35% | 71% | 72% | 59% | 77% | 48% | 76% | 63% | 86% | 84% | 68% | 36% | |||
| chance for snow | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| humidity | 73% | 73% | 76% | 79% | 83% | 85% | 86% | 84% | 79% | 77% | 83% | 83% | 84% | 87% | 88% | 89% | 88% | 91% | 91% | 90% | 94% | 96% | 97% | 97% | |||
| dew point | 10.3° | 10.6° | 11° | 11° | 10.8° | 10.5° | 10.5° | 11.9° | 13.7° | 16.2° | 16.9° | 18° | 19.2° | 19.9° | 19.7° | 20.3° | 20.4° | 19.5° | 19.3° | 19.4° | 19.2° | 18.6° | 18.1° | 17.9° | |||
| visibility | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 9 km | 10 km | 6 km | 10 km | 6 km | 10 km | 7 km | 10 km | 10 km | 10 km | |||
| cloud cover | 35% | 36% | 45% | 32% | 30% | 13% | 7% | 7% | 51% | 36% | 100% | 100% | 94% | 100% | 88% | 71% | 100% | 100% | 55% | 57% | 85% | 100% | 100% | 100% | |||
| UV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.3 | 0.9 | 1.5 | 2.1 | 2.2 | 1.3 | 4.2 | 2.2 | 1.7 | 0.9 | 1.5 | 0.4 | 0.3 | 0 | 0 | 0 | 0 |
Weather in Ottawa tomorrow
The temperature tomorrow in Ottawa is expected to be typical for this time of year, with a forecast of 23 °C, closely aligning with the historical average for 21st of July.
temperatures
23 °C
rain
16.4 mm
wind
28 km/h
UV
Moderate
Ottawa Tomorrow Weather Indexes for Outdoor Activities & Health
Weather indexes for tomorrow: outdoor activities, pollen allergies, air quality (AQI), UV index and health in Ottawa - Tuesday, 21st July 2026
UV Sun Exposure Risk
Low
4 / 11+
Air Quality Index (AQI)
Excellent
10 / 10
Pollen Allergy Risk
Very High
10 / 10
Cold & Flu Risk
Very Low
0 / 10
Asthma Risk Index
Low
3 / 10
Arthritis Pain Index
Low
3 / 10
Outdoor Activity Index
Good
7 / 10
Running & Jogging Index
Fair
4 / 10
Cycling Weather Index
Fair
4 / 10
Pet Walking Index
Excellent
8 / 10
Gardening Weather Index
Excellent
9 / 10
Photography Light Index
Good
6 / 10
Driving & Road Safety
Good
7 / 10
Construction Work Index
Fair
4 / 10
Ottawa daylight overview ☀️
Tomorrow in Ottawa, The sun rises at 05:35 and sets at 20:43, giving a total daylight duration of 15 hours and 8 minutes.
Top locations in Ottawa
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What to wear tomorrow in Ottawa? clothing recommendations
Stay comfortably stylish - your tailored guide for tomorrow's Ottawa forecast.
Long-sleeve shirt
Long pant
Closed-toe shoes
Light jacket
Umbrella
The weather tomorrow in Ottawa - FAQ
What is the maximum temperature for tomorrow in Ottawa?
The maximum temperature for tomorrow in Ottawa is expected to be 23° degrees. Please dress accordingly to stay comfortable throughout the day.
Will it rain tomorrow in Ottawa? 🌧️
Yes, there is a 84% chance of rain in Ottawa tomorrow. We recommend carrying an umbrella or rain gear to stay dry.
What will be the wind speed tomorrow in Ottawa? 🌀
The wind in Ottawa is expected to blow at 28 km/h. This could affect outdoor activities, so plan accordingly.
How should I dress for the weather in Ottawa tomorrow?
Given the forecast of 23 °C with a 84% chance of rain, we advise checking our "What to wear tomorrow" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in Ottawa tomorrow.
What is the sunrise and sunset time for Ottawa tomorrow?
The sun is expected to rise at 05:35 and set at 20:43 in Ottawa.
How accurate is the weather forecast Ottawa tomorrow? ✅
Ottawa weather forecast for tomorrow is based on the most current and sophisticated meteorological models available. While we strive for accuracy, weather conditions can change unexpectedly, so we recommend checking for updates regularly.
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