yesterday (observation)	currently (observation)	today (forecast)	tomorrow (forecast)	the day after tomorrow (forecast)	two days later (forecast)
Belgium	good - 3	fairly good - 4	good - 3	good - 3	good - 3	very good - 2
Flanders	fairly good - 4	fairly good - 4	fairly good - 4	good - 3	fairly good - 4	very good - 2
Brussels	fairly good - 4	moderate - 5	fairly good - 4	good - 3	good - 3	very good - 2
Wallonia	very good - 2	good - 3	good - 3	very good - 2	good - 3	very good - 2