Cornwall weather: Tuesday 4 August, thunder and hail chance at 26°C

Keep the sunglasses handy but do not leave home without a plan for the sky opening up. Cornwall sits under a mix of sunny spells and hit-and-miss showers this week, and Tuesday carries the sting in the tail: some of those showers could turn heavy enough to bring hail and a rumble of thunder. Here is how the next few days shape up across the South West.

Today

Sunny spells and a scattering of showers set the tone. By the afternoon some of those showers turn heavy, with the risk of hail and thunder mixed in. Not everywhere will catch them, and plenty of places stay dry through the day. When the sun is out it feels pleasant, with the temperature climbing to a high of 26°C.

Tonight

The showers may ease off for a while during the evening, opening up plenty of bright spells before dusk. Some showers could return overnight, though they should be mostly light. It stays warm, with the temperature dropping no lower than 15°C.

Wednesday

A mostly dry day with plenty of sunny spells. A few passing showers are possible, mainly across the north and west. It turns increasingly windy and feels a little cooler, with a high of 23°C.

Thursday to Saturday

The rest of the week stays mostly dry, with sunny spells and a few passing showers, perhaps mainly on Friday. Temperatures settle near average, so it feels cooler than of late, especially when the breeze picks up.