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
| 15 March 2026 Sun 20.4 ° C ( 68.7°F )  Patchy rain nearby |
Feels Like : 20.4 ° C / 68.7°F Humidity : % 78 Pressure : 1023 mb Wind Speed : 5 kmph / 3.1 miles from N 
Visibility : 9 km Precipitation (rainfall) : 0.69 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 |
|---|---|---|---|---|---|---|---|
| 15 March 2026 Sun |  Moderate rain |
15.1 ° C | 22.4 ° C | 18.5 ° C | % 75 | 11.2 km/h | 88% |
| 16 March 2026 Mon | Patchy rain nearby |
16.1 ° C | 25.9 ° C | 19.7 ° C | % 69 | 13.3 km/h | 89% |
| 17 March 2026 Tue | Patchy rain nearby |
16.6 ° C | 28.5 ° C | 22 ° C | % 53 | 7.2 km/h | 71% |
| 18 March 2026 Wed | Moderate rain |
16.1 ° C | 27.9 ° C | 20.9 ° C | % 65 | 11.9 km/h | 87% |
| 19 March 2026 Thu | Patchy rain nearby |
16.6 ° C | 28 ° C | 21.6 ° C | % 60 | 13 km/h | 88% |
| 20 March 2026 Fri | Patchy rain nearby |
16.4 ° C | 26.4 ° C | 21.1 ° C | % 65 | 10.8 km/h | 87% |
| 21 March 2026 Sat |  Sunny |
16.7 ° C | 27.3 ° C | 22.1 ° C | % 54 | 11.5 km/h | 0% |
| 22 March 2026 Sun | Sunny |
18.6 ° C | 28.6 ° C | 23.4 ° C | % 48 | 13.7 km/h | 0% |
| 23 March 2026 Mon | Patchy rain nearby |
17.8 ° C | 27.7 ° C | 22.6 ° C | % 59 | 13.3 km/h | 0% |
| 24 March 2026 Tue | Patchy rain nearby |
18.7 ° C | 29.4 ° C | 23.4 ° C | % 56 | 15.8 km/h | 76% |
| 25 March 2026 Wed | Moderate rain |
15.2 ° C | 23.1 ° C | 19.2 ° C | % 75 | 20.2 km/h | 81% |
| 26 March 2026 Thu | Patchy rain nearby |
14.9 ° C | 19 ° C | 16.5 ° C | % 83 | 11.9 km/h | 89% |
| 27 March 2026 Fri | Patchy rain nearby |
15 ° C | 22.7 ° C | 18.4 ° C | % 77 | 11.5 km/h | 87% |
| 28 March 2026 Sat | Patchy rain nearby |
16.2 ° C | 26.4 ° C | 20.3 ° C | % 62 | 10.8 km/h | 88% |
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