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

Today 3 Jan Wales

An icy start with wintry showers possible at times through today. These will be most numerous in the west and some eastern regions may remain dry with sunshine. Brisk northerly winds in the west. Feeling very cold. Maximum Temperature 5C.

Tonight 3 Jan Wales

Further wintry showers overnight, mainly in the west, leading to the risk of icy conditions for some. Snow accumulating in some places, particularly in Eryri and Mynydd Preseli. Becoming widely frosty with a severe frost in some inland spots. Minimum Temperature -7C.

Sun 4 Jan Wales

Sunny spells and wintry showers, these mainly in western areas at first but perhaps developing more widely later, falling as snow inland. Cold with frost and ice lingering in places. Maximum Temperature 5C.

Mon 5 Jan Wales

Cold on Monday with sunny periods and wintry showers near western coasts. Turning somewhat less cold thereafter with occasional rain or snow. Severe overnight frosts at first with ice possible.

Tue 6 Jan Wales

Cold on Monday with sunny periods and wintry showers near western coasts. Turning somewhat less cold thereafter with occasional rain or snow. Severe overnight frosts at first with ice possible.

Wed 7 Jan Wales

Cold on Monday with sunny periods and wintry showers near western coasts. Turning somewhat less cold thereafter with occasional rain or snow. Severe overnight frosts at first with ice possible.

Thu 8 Jan Wales

Rather changeable, as Atlantic frontal systems attempt to cross the UK from the west to bring occasional outbreaks of rain, but preceded by snow in some areas, more especially central, northern and eastern parts of the UK, perhaps giving some significant snow accumulations in places, particularly on northern hills. These low pressure systems, whilst could bring some periods of strong winds, will be interspersed with quieter, drier interludes under transient ridges of high pressure with the potential for frost, and wintry showers along coasts exposed to northerly winds. A continuation of this general pattern is favoured into the following week, although perhaps with temperatures trending closer to average such that the frequency of wintry hazards, especially in the south, may reduce slightly.

Fri 9 Jan Wales

Rather changeable, as Atlantic frontal systems attempt to cross the UK from the west to bring occasional outbreaks of rain, but preceded by snow in some areas, more especially central, northern and eastern parts of the UK, perhaps giving some significant snow accumulations in places, particularly on northern hills. These low pressure systems, whilst could bring some periods of strong winds, will be interspersed with quieter, drier interludes under transient ridges of high pressure with the potential for frost, and wintry showers along coasts exposed to northerly winds. A continuation of this general pattern is favoured into the following week, although perhaps with temperatures trending closer to average such that the frequency of wintry hazards, especially in the south, may reduce slightly.

Four Crosses (Llanfair Caereinion) Weather Forecast

Today 3 Jan Wales

Tonight 3 Jan Wales

Sun 4 Jan Wales

Mon 5 Jan Wales

Tue 6 Jan Wales

Wed 7 Jan Wales

Thu 8 Jan Wales

Fri 9 Jan Wales

Temperature Forecast Met Office

Temperature Real-Time

Clee Hill (Shropshire) Radar

National Satellite

National Synoptic

Four Crosses (Llanfair Caereinion) Temperature Statistics

January Temperature

Lake Vyrnwy Saws (10km)

Lowest 2 January, 2026

Average 2026

Highest 1 January, 2026

Lowest 26 December, 2025

Average December

Highest 9 December, 2025

Lowest 2 January, 2026

Average January

Highest 1 January, 2026

Climate (2021–Present)

Lake Vyrnwy Saws (10km)

Average Low 2021–2026

Average 2021–2026

Average High 2021–2026