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
| 03 June 2026 Wed 13.1 ° C ( 55.6°F )  Clear |
Feels Like : 12.7 ° C / 54.9°F Humidity : % 51 Pressure : 1022 mb Wind Speed : 7.6 kmph / 4.7 miles from NNE 
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 |
|---|---|---|---|---|---|---|---|
| 03 June 2026 Wed | Sunny |
11.9 ° C | 18.4 ° C | 15 ° C | % 36 | 12.6 km/h | 0% |
| 04 June 2026 Thu |  Patchy rain nearby |
10.1 ° C | 17.2 ° C | 13.5 ° C | % 40 | 29.2 km/h | 73% |
| 05 June 2026 Fri | Sunny |
6 ° C | 13.8 ° C | 9.8 ° C | % 45 | 15.5 km/h | 0% |
| 06 June 2026 Sat | Sunny |
7.1 ° C | 16.1 ° C | 11.3 ° C | % 37 | 10.8 km/h | 0% |
| 07 June 2026 Sun | Sunny |
9 ° C | 18.8 ° C | 13.5 ° C | % 25 | 7.6 km/h | 0% |
| 08 June 2026 Mon | Sunny |
11.1 ° C | 20.4 ° C | 13.8 ° C | % 24 | 15.1 km/h | 0% |
| 09 June 2026 Tue | Sunny |
11.6 ° C | 19.1 ° C | 14.5 ° C | % 28 | 16.2 km/h | 0% |
| 10 June 2026 Wed | Sunny |
8.9 ° C | 17.7 ° C | 13 ° C | % 45 | 13 km/h | 0% |
| 11 June 2026 Thu | Sunny |
10.6 ° C | 18.5 ° C | 14 ° C | % 38 | 8.6 km/h | 0% |
| 12 June 2026 Fri | Sunny |
11.5 ° C | 20.4 ° C | 15.3 ° C | % 31 | 10.4 km/h | 0% |
| 13 June 2026 Sat | Sunny |
12.8 ° C | 21 ° C | 16.3 ° C | % 33 | 16.2 km/h | 0% |
| 14 June 2026 Sun | Sunny |
13.6 ° C | 21.8 ° C | 17.2 ° C | % 33 | 19.1 km/h | 0% |
| 15 June 2026 Mon | Sunny |
14.3 ° C | 22.3 ° C | 17.6 ° C | % 32 | 15.1 km/h | 0% |
| 16 June 2026 Tue | Sunny |
11.5 ° C | 20.1 ° C | 15.8 ° C | % 52 | 18.7 km/h | 1% |
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