in the late evening clouds with light rain will prevail. morning temperatures will be around 15 °c. during the day they will reach a maximum of 23 °c. low temperatures at night will be around 13°c. westerly winds are weak.

How would the previous sentence be correctly capitalized?
In the late evening clouds with light rain will prevail. Morning temperatures will be around 15 °C. During the day they will reach a maximum of 23 °C. Low temperatures at night will be around 13°C. Westerly winds are weak.