‘Wavy’ jet stream to bring warm weather to north-west Europe

Warm air from south to deliver above-average temperatures - but heavy rain expected to follow

North-west Europe is forecast to experience a burst of autumn warmth this week, thanks to warm air from southern Europe spreading northwards. This brief episode of warmer-than-average conditions will be driven by an amplified, or wavy", jet stream, which will allow warm air to push farther north.

Daytime temperatures across much of France are forecast to reach the mid-20s on Tuesday and Wednesday, with some areas in the south-west potentially exceeding this. Meanwhile, the Benelux area and south-east England are expected to reach the low-20s by midweek.