| Celje | | | -15 |  | 4 | | 1027 | | |
| Cerklje Airport (at Krka river) |  | prevailingly cloudy | -13 |  | 4 | | 1026 | | |
| Crnomelj | | | -14 | | 0 | | 1026 | | |
| Katarina | | | -4 | | | | | | |
| Kocevje | | | -16 | | | | | | |
| Kredarica |  | clear | -12 |  | 29 | 54 | *
744 | | |
| Lesce | | | -11 | | 0 | | 1027 | | |
| Lisca | | clear | -4 |  | 25 | | *
910 | | |
| Ljubljana |  | cloudy | -8 |  | 4 | | 1026 | | |
| Ljubljana Jože Pučnik Airport |  | Fog with visible sky | -14 |  | 4 | | 1027 | | |
| Maribor Edvard Rusjan Airport | | clear | -16 | | 4 | | 1026 | | |
| Murska Sobota | | clear | -17 | | 4 | | 1026 | | |
| Nova Gorica |  | mostly clear | -5 |  | 7 | | 1024 | | |
| Novo mesto | | clear | -11 | | 7 | | 1026 | | |
| Portorož Airport |  | moderately cloudy | -1 |  | 11 | | 1023 | | |
| Postojna | | prevailingly cloudy | -13 | | 4 | | | | |
| Ratece | | | -15 | | | | | | |
| Slovenj Gradec | | clear | -18 | | 4 | | | | |
| Vogel | | | -7 | | | | | | |
| Vojsko | | | | | | | | | |