morning temperatures will be around 12 °c. during the day they will reach a maximum of 17 °c. low temperatures at night will be around 6°c. we have weak southwesterly winds.

This is all lower case. Can you fix that?
Morning temperatures will be around 12 °C. During the day they will reach a maximum of 17 °C. Low temperatures at night will be around 6°C. We have weak southwesterly winds.