Today's Weather Forecast - Johannesburg
Today's weather in Johannesburg. high 21°C (70°F), low 10°C (50°F). Sunny.
Today’s Hourly Weather Outlook
- Wind speed
- 8 km/h
- Rain probability
- 0%
- Wind speed
- 4 km/h
- Rain probability
- 0%
- Wind speed
- 7 km/h
- Rain probability
- 0%
- Wind speed
- 6 km/h
- Rain probability
- 0%
24-Hour Rain & Temperature Forecast
Sunrise & Sunset
Air Quality Index & Health Advice
Air Quality Index
- Air quality level
- Good
- Dominant pollutant
- Dominant: PM2.5
- Monitoring station
- Alexandra-NAQI, City of Johannesburg, South Africa
- PM2.5
- 39μg/m³
- PM10
- 16μg/m³
- NO₂
- 0.1ppb
- SO₂
- 2.1ppb
5-Day Weather Forecast
Full 15-Day ForecastWeather Insight
Johannesburg is forecast to reach a high of 21°C today, with an overnight low around 10°C. That's 5° below the long-term average high of 26°C for this time of year. Expect little chance of rain (0% probability) and light winds averaging 8 km/h. Air quality is currently Moderate (AQI 76), driven mainly by O₃ at 171 μg/m³.
Today vs Normal
The long-term average high for today is 26°C.
12 of the last 19 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 is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.