Overview

• An Atlantic disturbance is expected to drive heavy rain, thunderstorms and hail across Northern and parts of Central Italy between Monday and Tuesday, with a marked temperature drop there.
• Meteorologists highlight a localized flash‑flood risk from slow‑moving cells, with IlMeteo.it warning of potential >100 mm downpours in a few hours in areas behind Genoa and Savona.
• The South should stay relatively warm under residual subtropical influence, with many areas around 30°C while northern highs fall to the low‑20s in places.
• Model guidance indicates a high‑pressure rebuild from Thursday 4 September, ushering in a short 'estate settembrina' with sunnier conditions and highs above 30°C in parts of the North and around 34–36°C in the South into the weekend.
• Outlooks beyond about five days remain uncertain, and some forecasts still suggest renewed instability for northern regions late in the weekend.