morning temperatures will be around 10 °c. during the day they will reach a maximum of 17 °c. low temperatures at night will be around 9°c. we have weak westerly winds.

How would the previous sentence be correctly capitalized?
Morning temperatures will be around 10 °C. During the day they will reach a maximum of 17 °C. Low temperatures at night will be around 9°C. We have weak westerly winds.