Perth (Perth and Kinross) weather

Headline:

A cold night, clear spells developing.

This Evening and Tonight:

Showers dying out during the evening then a dry night with long clear spells. Becoming chilly with a frost possible in the glens where winds are lighter. Minimum temperature 4 °C.

Sunday:

A chilly and mostly sunny start to the day. Cloud will bubble up from late morning onwards to give some scattered light showers. Feeling unseasonably chilly. Maximum temperature 13 °C.

Outlook for Monday to Wednesday:

Dry with sunny spells through early next week. Chilly nights with a touch of frost in places but becoming reasonably warm during the afternoons.

Continuation of the settled weather of the previous few days will begin this period. Dry for the vast majority, with light winds and sunny spells by day; overnight there will be a risk of mist or isolated fog patches. Thicker cloud and outbreaks of rain may already be affecting the extreme northwest however, and through the coming weekend there will be a steadily increasing chance of this moving eastwards across more of the UK; eastern areas always likely to fare best. Confidence in any breakdown to unsettled weather however is very low, influenced by ex-Hurricane Gabrielle, which may approach the UK during this time. The following week will most likely see a west to east split, with wettest weather remaining in western areas. Temperatures around to above average.

Confidence is very low in the weather regimes most likely to affect the UK during this period. On balance, slow-moving weather patterns are most favoured at first, possibly with high pressure centred to the west of the UK, and low pressure to the northeast, allowing a slightly cooler and more changeable flavour to the weather to develop. Towards mid-October a more unsettled pattern may become established as areas of low pressure over the North Atlantic move close to or over the UK, with an increased chance of windy conditions at times. Temperatures will probably recover to near-average.