morning temperatures will be around 11 °c. during the day they will reach a maximum of 19 °c. low temperatures at night will be around 9°c. we have weak northerly winds.

This is all lower case. Can you fix that?
Morning temperatures will be around 11 °C. During the day they will reach a maximum of 19 °C. Low temperatures at night will be around 9°C. We have weak northerly winds.