Caerphilly (Caerphilly) weather

Headline:

Cloudy with sunny spells, low risk of a shower.

Today:

A mainly dry day with a mixture of cloud and sunny spells. A low chance of thundery showers across Pembrokeshire. Feeling a bit cooler, especially in the easterly breeze. Maximum temperature 23 °C.

Tonight:

A bright end to the day with some hazy sunshine on offer before cloud re-invades from the east overnight, particularly across the east. Feeling fresher than of later. Minimum temperature 11 °C.

Tuesday:

Another cloudy start for some on Tuesday, but the cloud will lift and break with some warm sunny spells developing. Still a continued risk of some showers across the south. Maximum temperature 23 °C.

Outlook for Wednesday to Friday:

Remaining dry and settled for the rest of the week with a mixture of cloud and sunny periods. Lower temperatures than of late but feeling warm in any sunshine.

High pressure is likely to be the dominant feature at first bringing widely fine and dry weather whilst a generally northerly flow leads to rather cool conditions. This will be increasingly eroded from the west as frontal systems start to move in from the Atlantic through the weekend, leading to more changeable conditions. Whilst this is happening a deep area of low pressure is likely to develop in the North Atlantic, linked to Hurricane Erin. This likely progresses towards the UK through the early part of the week. The changeable period will likely continue through the last week of August, especially in the north and west, with a small chance of widely wetter and windier weather developing. The evolution of this is highly uncertain though.

Confidence in the details through this period is low. However, low pressure and therefore unsettled or changeable weather looks more likely. There will be the potential for periods of stronger winds at times as well. Whether this takes the form of further low pressure systems running in from the Atlantic, or a more slowly evolving weather pattern with the potential for heavy showers is less clear. Temperatures are likely to be near to, or slightly above average overall.