Weather: Warm patch coming through, with risk of T-storms tonight

Can we have finally turned the corner to spring?
We must have because the weather office is saying things like almost 48 hours with well-above zero temps and risks of thunderstorms.
Thursday’s looking cloudy with a high near 7 C, with a 60 per cent chance of showers in the evening and overnight.
The temperature will continue to rise overnight, with fog patches developing near the morning.
Environment Canada says there’s a risk of thunderstorms overnight and Friday morning. Why does t