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Ottawa Weather Forecast

Ottawa Weather Forecast – Live 24-Hour National Capital Tracker

Get up-to-the-minute local tracking for the weather in Ottawa tomorrow on WeatherTomorrow.pk. Whether you are scheduling public sector routines, commuting along the Queensway, checking ice thickness reports near the Rideau Canal, or organizing regional distribution networks across Eastern Ontario, our live dashboard keeps you ahead of changing atmospheric trends across Canada’s capital.

Ottawa’s inland valley topography makes its weather pattern highly active, yielding significantly colder winter baselines and sudden summer moisture shifts. Use our integrated interactive dashboard below to track real-time metrics:

 

Ottawa

Ontario, Canada
3°
Clear
Clear
Feels Like 2°
Humidity 76%
Wind 5 km/h
Wind Direction NE (43°)
Pressure 1030 mb
Visibility 10 km
UV Index 0
Cloud Cover 0%

Hourly Forecast

12:00 AM
Clear
4°
Clear
💧 72% 🌧 7% 💨 6.5 km/h
1:00 AM
Clear
4°
Clear
💧 74% 🌧 7% 💨 5.8 km/h
2:00 AM
Clear
3°
Clear
💧 76% 🌧 8% 💨 5.4 km/h
3:00 AM
Clear
3°
Clear
💧 78% 🌧 9% 💨 5.8 km/h
4:00 AM
Clear
2°
Clear
💧 79% 🌧 9% 💨 5 km/h
5:00 AM
Clear
2°
Clear
💧 80% 🌧 10% 💨 4.7 km/h
6:00 AM
Clear
2°
Clear
💧 81% 🌧 10% 💨 4.7 km/h
7:00 AM
Clear
1°
Clear
💧 82% 🌧 10% 💨 4.3 km/h
8:00 AM
Sunny
2°
Sunny
💧 81% 🌧 10% 💨 4 km/h
9:00 AM
Sunny
5°
Sunny
💧 72% 🌧 7% 💨 5 km/h
10:00 AM
Sunny
7°
Sunny
💧 64% 🌧 5% 💨 5.8 km/h
11:00 AM
Sunny
9°
Sunny
💧 57% 🌧 3% 💨 5.8 km/h
12:00 PM
Sunny
10°
Sunny
💧 52% 🌧 2% 💨 5.4 km/h
1:00 PM
Sunny
12°
Sunny
💧 48% 🌧 2% 💨 4.3 km/h
2:00 PM
Sunny
12°
Sunny
💧 45% 🌧 1% 💨 4.7 km/h
3:00 PM
Sunny
13°
Sunny
💧 44% 🌧 1% 💨 5.8 km/h
4:00 PM
Sunny
12°
Sunny
💧 45% 🌧 1% 💨 5 km/h
5:00 PM
Sunny
11°
Sunny
💧 56% 🌧 3% 💨 2.5 km/h
6:00 PM
Sunny
7°
Sunny
💧 61% 🌧 4% 💨 1.8 km/h
7:00 PM
Clear
6°
Clear
💧 64% 🌧 5% 💨 0.7 km/h
8:00 PM
Clear
6°
Clear
💧 66% 🌧 5% 💨 2.5 km/h
9:00 PM
Clear
5°
Clear
💧 68% 🌧 6% 💨 2.5 km/h
10:00 PM
Clear
5°
Clear
💧 70% 🌧 6% 💨 0.7 km/h
11:00 PM
Clear
4°
Clear
💧 71% 🌧 7% 💨 1.4 km/h

📈 Weather Trends

Temperature

Chance of Rain

Wind Speed

Humidity

3-Day Forecast

Wednesday
2026-10-21
Sunny
13° / 1°
🌧 5%
💨 6.5 km/h
💧 66%
☀ UV 2.9
Thursday
2026-10-22
Sunny
14° / 3°
🌧 7%
💨 18.4 km/h
💧 67%
☀ UV 2.6
Friday
2026-10-23
Sunny
10° / 0°
🌧 8%
💨 11.5 km/h
💧 65%
☀ UV 2.3

🌿 Air Quality

US EPA Index
1
Good
Air quality is satisfactory and poses little or no health risk.
Air Quality Level
1 Good Low risk ● Current
2 Moderate Acceptable
3 Sensitive Sensitive groups
4 Unhealthy Everyone
5 Very Unhealthy Increased risk
6 Hazardous Emergency
US EPA Index 1
UK DEFRA Index 1
PM2.5 1.9 µg/m³
PM10 2 µg/m³
CO 158 µg/m³
O₃ 42 µg/m³
NO₂ 7.9 µg/m³
SO₂ 1.3 µg/m³
AQI categories are based on the US EPA air quality index supplied by the weather provider.

Sun & Moon

🌅
Sunrise
07:27 AM
🌇
Sunset
06:07 PM
🌙
Moonrise
04:11 PM
🌘
Moonset
02:29 AM
🌕
Moon Phase
Waxing Gibbous
✨
Illumination
73%

Ottawa Weather Tomorrow – Live 24-Hour Hourly Trends & Travel Planner

Before packing travel gear or scheduling outdoor corporate tasks, checking the live weather in ottawa tomorrow gives you a massive operational advantage. Our platform features an expansive 24-hour hourly forecast timeline. Because arctic air masses can slide down the Ottawa River valley with extreme speed, reliance on single daily numbers can leave commutes exposed to sudden winter blizzards or severe wind chill metrics.

  • Interactive Trend Charts: Dive into active, visual graphs detailing shifting percentages for Chance of Rain, Snowfall probabilities, Wind Speed velocities, and dynamic Humidity levels over a rolling 24-hour period.
  • Inland Valley Thermal Profiles: Monitor precise ambient mercury readings alongside the actual calculated “feels-like” index, which plummets aggressively below freezing during winter cold waves.
  • Astronomical Intervals: Access high-precision daily schedules tracking exact sunrise, sunset, moonrise, and moonset times.

Navigating Ottawa’s Climate: Humid Valley Summers & Deep Sub-Zero Winters

Ottawa features a humid continental climate boasting four highly pronounced seasons. Summer (June to August) is warm and humid, with maximum temperatures touching 27°C to 30°C. High moisture levels from the river basin can make afternoon outdoor tasks feel stifling, requiring active tracking of rising heat indexes.

Conversely, the winter season from December to March is exceptionally severe. Cold polar winds freeze local waterways completely, turning the Rideau Canal into the world’s largest skating rink. Nighttime values routinely crash way below freezing, often dipping to -15°C or -20°C during heavy cold waves. This causes deep winter snowfall accumulation and generates icy road glazes that motorists must monitor closely via our live alerts.

Advanced Eastern Ontario Air Quality & Environmental Tracking

WeatherTomorrow.pk combines standard weather forecasting with a high-fidelity Air Quality Index (AQI) monitoring suite. Our environmental panel tracks detailed pollutant metrics including fine particulate matter (PM2.5 and PM10), Nitrogen Dioxide (NO2), Sulfur Dioxide (SO2), Carbon Monoxide (CO), and Ozone (O3) concentrations, allowing families to measure air cleanliness accurately alongside ambient conditions.

Frequently Asked Questions (FAQs)

How cold do winter nights get in Canada’s capital city?

During peak winter months like January and February, arctic air tracking routinely drives nighttime temperatures down past -15°C, with wind chill values making it feel significantly colder.

Where can I view active freeze warnings or heavy blizzard alerts for Ottawa?

Any active regional alerts, sub-zero cold wave warnings, heavy snowfall advisories, or highway blockage notices will display instantly at the very top of this page for public safety.