Today in Siantar Nai Pospos,the atmosphere will become very unstable. Very cloudy with risk of thunderstorms in the morning, skies clouding over with storms forming in the afternoon. No precipitation in the morning, heavy showers in the afternoon. Light winds.
The reliability of the situation is good.
Temperatures will vary between 21 and 28°C, it will be warm in the afternoon.
Tonight,stormy but gradually improving. Heavy showers. Light winds.