Conditional Probability of several events

Hallo Everyone,
I have a question in Conditional Probability and I would appreciate if you could help me solve it.
I have the probability of of the Hourly temperature of the day. if my temperature varies from -3,-2,-1,0.....+9 and I know the probability for each temp. every hour through the day (for example that probability that the temp is +1°C at 12:00 am is 13% and at 01:00 am is 15% and so on for 24 hours.

How could I know the probability that the hourly temp. will be:
a) the same for two successive hours?
b) Increase by +1 degree in the next hour
c) decrease by -1 degree in the next hour