1. Roll in - approach, come nearer
Ex : As the dark cloudes rolled in, Ram tried to get home before rain.

2. Brighten in - become sunnier, less cloudy
Ex : The weather finally brighten up after long time.

3. calmed down - become less stromy or windy
Ex : we will start for station once the will calm down.

4. Clouded over - become more cloudy
Ex : Just an hour after the match starts the sky clouded over.