Dramatic lightning storms are expected to hit Brisbane, while temperatures in some parts of Queensland have tipped 40 degrees.

Skies are expected to light up in the state's capital on Monday afternoon when the mercury peaks at 36 degrees, about 10 hotter than average for this time of year.

Skies are expected to light up on Monday afternoon.

In Cunnamulla, in southwest Queensland, a temperature record that stood for more than a century tumbled on Sunday when it reached 42 degrees.

And the weather bureau says other long-standing October temperature records could fall by the end of Monday.