Ottawa
Tomorrow
Tomorrow weather in Ottawa
Saturday, 12th September 2026
22°
Overcast
Low 10°
The weather tomorrow in Ottawa will be a bit hotter than today, with max temperatures of 22°.
22° / 10°
Temp
18%
Rain
13 km/h
Wind
79%
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 | 06:00 | 06:37 | 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 | 19:20 | 20:00 | 21:00 | 22:00 | 23:00 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| weather |  | | |  |  |  | |  |  |  |  | | | | | | | | | | |  | | |  |  | Next |
| temperatures | 11° | 11.7° | 11.3° | 11.1° | 10.8° | 10.7° | 10.4° | Sunrise | 10.5° | 12.2° | 14° | 16.3° | 18.5° | 19.9° | 20.4° | 21.2° | 21.7° | 22.2° | 21.8° | 21.2° | 19.7° | Sunset | 18.4° | 17.6° | 17.4° | 17.1° | |
| Feels like | 10.3° | 11.2° | 10.7° | 10.2° | 10° | 10° | 9.7° | 9.8° | 11.4° | 12.7° | 15.1° | 17° | 17.8° | 18.1° | 18.8° | 19.8° | 21.4° | 22° | 21.9° | 20.4° | 19.2° | 18.3° | 18.1° | 18.3° | |||
| wind speed | 1 km/h | 3 km/h | 4 km/h | 5 km/h | 4 km/h | 3 km/h | 3 km/h | 3 km/h | 4 km/h | 7 km/h | 8 km/h | 12 km/h | 13 km/h | 13 km/h | 14 km/h | 13 km/h | 11 km/h | 9 km/h | 9 km/h | 8 km/h | 5 km/h | 5 km/h | 6 km/h | 5 km/h | |||
| wind degree | 197° | 187° | 187° | 182° | 191° | 184° | 171° | 190° | 188° | 195° | 179° | 181° | 177° | 173° | 183° | 188° | 178° | 178° | 192° | 190° | 199° | 179° | 165° | 181° | |||
| wind direction | SSW | S | S | S | S | S | S | S | S | SSW | S | S | S | S | S | S | S | S | SSW | S | SSW | S | SSE | S | |||
| Precipitation | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | |||
| chance for rain | 10% | 14% | 16% | 32% | 27% | 22% | 22% | 19% | 19% | 8% | 8% | 10% | 14% | 13% | 12% | 12% | 15% | 18% | 22% | 24% | 25% | 28% | 30% | 39% | |||
| 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 | 83% | 91% | 92% | 93% | 93% | 93% | 92% | 92% | 86% | 76% | 72% | 68% | 58% | 54% | 51% | 53% | 61% | 70% | 77% | 82% | 83% | 87% | 89% | 95% | |||
| dew point | 8.2° | 10.3° | 10.1° | 10° | 9.8° | 9.5° | 9.3° | 9.2° | 9.8° | 9.8° | 11.3° | 12.6° | 11.4° | 10.9° | 10.7° | 11.7° | 14.3° | 16.1° | 17° | 16.4° | 15.6° | 15.4° | 15.6° | 16.4° | |||
| 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 | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 2 km | |||
| cloud cover | 0% | 2% | 22% | 100% | 79% | 57% | 59% | 40% | 63% | 5% | 18% | 54% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 98% | 100% | 100% | 100% | |||
| UV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.4 | 1.1 | 2.3 | 3.7 | 4.9 | 5.2 | 4.9 | 3.7 | 2.4 | 1.2 | 0.4 | 0 | 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 22 °C, closely aligning with the historical average for 12th of September.
temperatures
22 °C
rain
0 mm
wind
13 km/h
UV
Moderate
🌫️ Air quality, UV & pollen - Ottawa Live AQI, UV index and pollen levels. Air Quality →
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 - Saturday, 12th September 2026
UV Sun Exposure Risk
Moderate
5 / 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
Excellent
10 / 10
Running & Jogging Index
Good
7 / 10
Cycling Weather Index
Excellent
10 / 10
Pet Walking Index
Excellent
10 / 10
Gardening Weather Index
Excellent
10 / 10
Photography Light Index
Excellent
8 / 10
Driving & Road Safety
Excellent
9 / 10
Construction Work Index
Excellent
8 / 10
Ottawa daylight overview ☀️
Tomorrow in Ottawa, The sun rises at 06:37 and sets at 19:20, giving a total daylight duration of 12 hours and 43 minutes.
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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
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 22° degrees. Please dress accordingly to stay comfortable throughout the day.
Will it rain tomorrow in Ottawa? 🌧️
Yes, there is a 18% 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 13 km/h. This could affect outdoor activities, so plan accordingly.
How should I dress for the weather in Ottawa tomorrow?
Given the forecast of 22 °C with a 18% 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 06:37 and set at 19:20 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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