Today's Weather Forecast - Hamilton
Today's weather in Hamilton. high 24°C (75°F), low 13°C (55°F). Sunny.
Today’s Hourly Weather Outlook
Morning6 AM – Noon16°
- Wind speed
- 10 km/h
- Rain probability
- 0%
AfternoonNoon – 6 PM23°
- Wind speed
- 11 km/h
- Rain probability
- 0%
Evening6 PM – Midn20°
- Wind speed
- 11 km/h
- Rain probability
- 0%
NightMidn – 6 AM15°
- Wind speed
- 10 km/h
- Rain probability
- 0%
24-Hour Rain & Temperature Forecast
Sunrise & Sunset
Sunrise
Dawn 6:24 AMTotal Daylight
36% of day elapsedSolar noon 1:15 PM
Sunset
Dusk 8:06 PMRemaining8h 9m
Solar elevation44°
vs yesterday-4 min
Air Quality Index & Health Advice
Air Quality Index
- Air quality level
- Good
- Dominant pollutant
- Dominant: O3
- Monitoring station
- Hamilton Downtown, Ontario, Canada
- PM2.5
- 17μg/m³
- O₃
- 21.6ppb
- NO₂
- 2.5ppb
- SO₂
- 0.8ppb
- CO
- 2.4ppm
5-Day Weather Forecast
Full 15-Day ForecastWeather Insight
Hamilton is forecast to reach a high of 24°C today, with an overnight low around 13°C. Expect little chance of rain (0% probability) and a gentle breeze averaging 11 km/h. Air quality is currently good (AQI 21), with no notable outdoor health concerns.
Today vs Normal
24°C0° below normal
The long-term average high for today is 24°C.
19 of the last 28 days with published data ran above normal.
That's a break from the pattern - today's forecast runs below normal even though the recent stretch mostly ran above.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air Quality
Good
Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.