Today's Weather Forecast - Hamilton
Today's weather in Hamilton. high 28°C (82°F), low 17°C (63°F). Overcast.
Today’s Hourly Weather Outlook
Morning6 AM – Noon20°
- Wind speed
- 11 km/h
- Rain probability
- 0%
AfternoonNoon – 6 PM26°
- Wind speed
- 20 km/h
- Rain probability
- 0%
Evening6 PM – Midn21°
- Wind speed
- 19 km/h
- Rain probability
- 1%
NightMidn – 6 AM21°
- Wind speed
- 17 km/h
- Rain probability
- 1%
24-Hour Rain & Temperature Forecast
Sunrise & Sunset
Sunrise
Dawn 6:23 AMTotal Daylight
Day completeSolar noon 1:15 PM
Sunset
Dusk 8:08 PMRemainingDaylight ended
Solar elevation-27°
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
- 13μg/m³
- O₃
- 20ppb
- NO₂
- 2.8ppb
- SO₂
- 0.2ppb
- CO
- 1.9ppm
5-Day Weather Forecast
Full 15-Day ForecastWeather Insight
Hamilton is forecast to reach a high of 28°C today, with an overnight low around 17°C. That's 4° above the long-term average high of 24°C for this time of year. Expect little chance of rain (1% probability) and a gentle breeze averaging 20 km/h. Air quality is currently good (AQI 42), with no notable outdoor health concerns.
Today vs Normal
28°C+4° above normal
The long-term average high for today is 24°C.
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.