Johannesburg-Grand Central Airport (GCJ) 15 Day Weather Forecast, Johannesburg South Africa
Current weather conditions and 15 day weather forecast for Johannesburg-Grand Central Airport in Johannesburg, South Africa including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at GCJ
| 24 June 2026 Wed 8.3 ° C ( 46.9°F )  Smoky haze |
Feels Like : 8.4 ° C / 47°F Humidity : % 100 Pressure : 1027 mb Wind Speed : 3.6 kmph / 2.2 miles from W 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15-day weather forecast for Johannesburg-Grand Central Airport, Johannesburg, South Africa
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 24 June 2026 Wed | Smoky haze |
11.5 ° C | 20.3 ° C | 15.6 ° C | % 49 | 6.8 km/h | 2% |
| 25 June 2026 Thu |  Sunny |
11.3 ° C | 19.5 ° C | 15.5 ° C | % 40 | 13 km/h | 1% |
| 26 June 2026 Fri | Smoky haze |
10.8 ° C | 19.6 ° C | 14.9 ° C | % 51 | 11.5 km/h | 2% |
| 27 June 2026 Sat | Smoky haze |
10.1 ° C | 18.1 ° C | 13.8 ° C | % 53 | 14.4 km/h | 3% |
| 28 June 2026 Sun | Sunny |
9.5 ° C | 17.9 ° C | 12.9 ° C | % 55 | 11.2 km/h | 3% |
| 29 June 2026 Mon | Sunny |
11.8 ° C | 19.3 ° C | 15.2 ° C | % 46 | 20.2 km/h | 1% |
| 30 June 2026 Tue | Sunny |
12.1 ° C | 20.5 ° C | 15.8 ° C | % 29 | 10.4 km/h | 1% |
| 01 July 2026 Wed | Sunny |
11.9 ° C | 19.6 ° C | 15.4 ° C | % 45 | 16.9 km/h | 1% |
| 02 July 2026 Thu | Sunny |
10.1 ° C | 18.1 ° C | 13.5 ° C | % 66 | 28.1 km/h | 7% |
| 03 July 2026 Fri |  Patchy rain nearby |
10.1 ° C | 18.4 ° C | 13.8 ° C | % 65 | 29.9 km/h | 17% |
| 04 July 2026 Sat | Patchy rain nearby |
10.7 ° C | 15.8 ° C | 13.1 ° C | % 64 | 14.4 km/h | 57% |
| 05 July 2026 Sun | Sunny |
9.8 ° C | 19.8 ° C | 14.8 ° C | % 44 | 15.1 km/h | 2% |
| 06 July 2026 Mon | Sunny |
11.3 ° C | 19 ° C | 15.3 ° C | % 62 | 11.2 km/h | 5% |
| 07 July 2026 Tue | Sunny |
13.4 ° C | 20.3 ° C | 16.4 ° C | % 43 | 9.4 km/h | 1% |
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