Bewolking — 2026
| Month | Herk-de-Stad | Lummen | Difference |
|---|---|---|---|
| Jan | 77 % | 76.8 % | +0.2 |
| Feb | 78.9 % | 78.8 % | +0.1 |
| Mar | 51.5 % | 52.5 % | -1.0 |
| Apr | 58.4 % | 58.3 % | +0.1 |
| May | 59.9 % | 59.8 % | +0.1 |
| Jun | 62.5 % | 62.5 % | +0.0 |
| Jul | 48.8 % | 48.3 % | +0.5 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |