Normal is the adjective and normally is the adverb. They both talk about something that is usual and expected.
- Life will continue as normal.
(adjective/normal – noun/life)
- Normal production is 100,000 bags a day.
(adjective/normal – noun/production)
- All our systems are working normally today.
(adverb/normally – verb/working)
- Normally, we produce 100,000 bags a day.
(adverb/normally – verb/produce)