Four Crosses (Llanfair Caereinion) Weather Forecast, Powys SY21 0

Today 29 Aug Wales

A mixture of sunshine and showers, these heaviest and most frequent in the east with the odd rumble of thunder, before gradually easing from the west. Temperatures holding around the late August average in any sunnier interludes, but remaining blustery. Maximum Temperature 19C.

Tonight 29 Aug Wales

A drier evening for many with some late sunny spells in the east although scattered showers will linger in the west overnight. Feeling cooler beneath clear skies for a time but becoming increasingly cloudy from the west by dawn. Minimum Temperature 8C.

Sat 30 Aug Wales

Increasingly cloudy through the morning, with rain soon arriving from the west. Wet and windy through the afternoon, especially gusty around the coasts, with heavy downpours at times. Maximum Temperature 18C.

Sun 31 Aug Wales

Plenty of blustery, sometimes thundery, showers on Sunday and Monday, though some brighter spells too. More prolonged spells of rain on Tuesday, though winds easing a touch. Temperatures near average.

Mon 1 Sep Wales

Plenty of blustery, sometimes thundery, showers on Sunday and Monday, though some brighter spells too. More prolonged spells of rain on Tuesday, though winds easing a touch. Temperatures near average.

Tue 2 Sep Wales

Plenty of blustery, sometimes thundery, showers on Sunday and Monday, though some brighter spells too. More prolonged spells of rain on Tuesday, though winds easing a touch. Temperatures near average.

Wed 3 Sep Wales

Changeable and unsettled weather conditions are expected across the UK during this period with low pressure systems tending to dominate the overall pattern. This will mean showers or longer spells of rain will affect the much of the UK at times. Some heavy rain or showers are expected in places, most often in the west. Thunderstorms and hail are also possible, as are some spells of strong winds if any deep areas of low pressure form in the vicinity of the UK. Some short-lived spells of drier and more settled weather are also possible at times, especially later in the period when they may last a little longer. Temperatures will likely be close to average or slightly below overall, but may rise above at times in any drier, sunnier spells.

Thu 4 Sep Wales

Changeable and unsettled weather conditions are expected across the UK during this period with low pressure systems tending to dominate the overall pattern. This will mean showers or longer spells of rain will affect the much of the UK at times. Some heavy rain or showers are expected in places, most often in the west. Thunderstorms and hail are also possible, as are some spells of strong winds if any deep areas of low pressure form in the vicinity of the UK. Some short-lived spells of drier and more settled weather are also possible at times, especially later in the period when they may last a little longer. Temperatures will likely be close to average or slightly below overall, but may rise above at times in any drier, sunnier spells.

Four Crosses (Llanfair Caereinion) Weather Forecast

Today 29 Aug Wales

Tonight 29 Aug Wales

Sat 30 Aug Wales

Sun 31 Aug Wales

Mon 1 Sep Wales

Tue 2 Sep Wales

Wed 3 Sep Wales

Thu 4 Sep Wales

Temperature Forecast Met Office

Temperature Real-Time

Clee Hill (Shropshire) Radar

National Satellite

National Synoptic

Four Crosses (Llanfair Caereinion) Temperature Statistics

August Temperature

Lake Vyrnwy Saws (10km)

Lowest 9 January, 2025

Average 2025

Highest 11 July, 2025

Lowest 2 July, 2025

Average July

Highest 11 July, 2025

Lowest 2 August, 2025

Average August

Highest 12 August, 2025

Climate (2020–Present)

Lake Vyrnwy Saws (10km)

Average Low 2020–2025

Average 2020–2025

Average High 2020–2025