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 April 2026 Fri 11.2 ° C ( 52.2°F )  Patchy rain nearby |
Feels Like : 9.4 ° C / 49°F Humidity : % 90 Pressure : 1023 mb Wind Speed : 14.8 kmph / 9.2 miles from E 
Visibility : 10 km Precipitation (rainfall) : 0.07 mm Cloud (%) : 70 |
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 April 2026 Fri |  Moderate rain |
11.1 ° C | 13.3 ° C | 12 ° C | % 90 | 16.6 km/h | 97% |
| 25 April 2026 Sat | Patchy rain nearby |
12.2 ° C | 17.7 ° C | 14.5 ° C | % 82 | 11.5 km/h | 89% |
| 26 April 2026 Sun |  Sunny |
12.6 ° C | 22.3 ° C | 17 ° C | % 65 | 13.7 km/h | 0% |
| 27 April 2026 Mon | Sunny |
15 ° C | 24.2 ° C | 19.1 ° C | % 61 | 18 km/h | 0% |
| 28 April 2026 Tue | Sunny |
14.6 ° C | 23.5 ° C | 18 ° C | % 47 | 17.6 km/h | 0% |
| 29 April 2026 Wed | Sunny |
12.8 ° C | 21.5 ° C | 16.3 ° C | % 44 | 15.8 km/h | 0% |
| 30 April 2026 Thu | Patchy rain nearby |
13.4 ° C | 19.3 ° C | 15.9 ° C | % 79 | 13.7 km/h | 83% |
| 01 May 2026 Fri | Patchy rain nearby |
14.3 ° C | 21.8 ° C | 17.7 ° C | % 71 | 18.4 km/h | 89% |
| 02 May 2026 Sat | Patchy rain nearby |
14.9 ° C | 24.6 ° C | 19.9 ° C | % 60 | 11.9 km/h | 86% |
| 03 May 2026 Sun | Sunny |
17.9 ° C | 26.7 ° C | 22 ° C | % 46 | 4.3 km/h | 0% |
| 04 May 2026 Mon | Patchy rain nearby |
16.9 ° C | 25.2 ° C | 20.2 ° C | % 59 | 10.8 km/h | 74% |
| 05 May 2026 Tue | Patchy rain nearby |
15 ° C | 24 ° C | 19.1 ° C | % 58 | 18.7 km/h | 79% |
| 06 May 2026 Wed |  Partly Cloudy |
9.5 ° C | 16.8 ° C | 12.5 ° C | % 62 | 25.2 km/h | 0% |
| 07 May 2026 Thu | Sunny |
9.3 ° C | 18 ° C | 13.1 ° C | % 57 | 17.3 km/h | 0% |
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