Porton Down Weather Forecast, Wiltshire SP4 0

Today 16 Nov South West England

A murky start with some low cloud and spots of drizzle. Turning brighter through the day. Some sunny spells possible later in the afternoon. Breezy at times around coasts and feeling colder than of late, particularly in the wind. Maximum Temperature 10C.

Tonight 16 Nov South West England

Mainly cloudy this evening but increasingly prolonged clear periods developing as we move through the overnight period. Turning chilly by dawn with some frost developing, mainly on grass and cars in rural areas. Breezy in coastal regions in the west. Minimum Temperature 3C.

Mon 17 Nov South West England

A chilly start to the new week but with plenty of sunshine during the day. Breezy in places but winds easing through the day. Feeling notably colder than of late. Maximum Temperature 8C.

Tue 18 Nov South West England

Rain or showers on Tuesday. Sunnier thereafter but wintry showers in the west, perhaps falling as snow at times. Often windy and feeling much colder. Ice and frost possible overnight.

Wed 19 Nov South West England

Rain or showers on Tuesday. Sunnier thereafter but wintry showers in the west, perhaps falling as snow at times. Often windy and feeling much colder. Ice and frost possible overnight.

Thu 20 Nov South West England

Rain or showers on Tuesday. Sunnier thereafter but wintry showers in the west, perhaps falling as snow at times. Often windy and feeling much colder. Ice and frost possible overnight.

Fri 21 Nov South West England

A widespread and in places sharp frost to begin Friday. Then a transition during the day to less cold and more generally unsettled conditions as Atlantic weather fronts make inroads into the UK. These will bring spells of rain potentially quite widely, though the wettest conditions through the latter part of November may occur across more southern areas. There is also the potential for some windy weather to develop at times, again this perhaps more likely further to the south. Compared to the preceding few days, a reduced likelihood of snowfall, though some upland snow remains possible in the north. Temperatures probably returning closer to average, generally speaking, for late November, and perhaps becoming mild at times in the south.

Sat 22 Nov South West England

A widespread and in places sharp frost to begin Friday. Then a transition during the day to less cold and more generally unsettled conditions as Atlantic weather fronts make inroads into the UK. These will bring spells of rain potentially quite widely, though the wettest conditions through the latter part of November may occur across more southern areas. There is also the potential for some windy weather to develop at times, again this perhaps more likely further to the south. Compared to the preceding few days, a reduced likelihood of snowfall, though some upland snow remains possible in the north. Temperatures probably returning closer to average, generally speaking, for late November, and perhaps becoming mild at times in the south.

Porton Down Weather Forecast

Today 16 Nov South West England

Tonight 16 Nov South West England

Mon 17 Nov South West England

Tue 18 Nov South West England

Wed 19 Nov South West England

Thu 20 Nov South West England

Fri 21 Nov South West England

Sat 22 Nov South West England

Temperature Forecast Met Office

Temperature Real-Time

Dean Hill (Wiltshire) Radar

National Satellite

National Synoptic

Porton Down Temperature Statistics

November Temperature

Boscombe Down (4km)

Lowest 5 March, 2025

Average 2025

Highest 12 August, 2025

Lowest 26 October, 2025

Average October

Highest 6 October, 2025

Lowest 9 November, 2025

Average November

Highest 13 November, 2025

Climate (2020–Present)

Boscombe Down (4km)

Average Low 2020–2025

Average 2020–2025

Average High 2020–2025