Porton Down Weather Forecast, Wiltshire SP4 0

Today 14 Mar South West England

A chilly morning with any, low cloud, mist and fog soon lifting. Scattered showers arriving from the north, heavy at times and possibly turning wintry over the Moors. Temperatures similar to previous days with light winds. Maximum Temperature 8C.

Tonight 14 Mar South West England

Any showers gradually easing through the evening to leave a mostly dry night. Turning chilly underneath the clearest skies with a touch of frost and some fog patches developing. Minimum Temperature 0C.

Sat 15 Mar South West England

Mist and fog soon clearing to leave a drier day compared to Friday with a mixture of sunny spells and a few, mostly light, showers. Breezier in the south. Maximum Temperature 10C.

Sun 16 Mar South West England

Cloudier on Sunday and Monday with a few showers mixed with brighter interludes. Brighter but breezier on Tuesday with plenty of lengthy sunny spells. Chilly by night with frost patches.

Mon 17 Mar South West England

Cloudier on Sunday and Monday with a few showers mixed with brighter interludes. Brighter but breezier on Tuesday with plenty of lengthy sunny spells. Chilly by night with frost patches.

Tue 18 Mar South West England

Cloudier on Sunday and Monday with a few showers mixed with brighter interludes. Brighter but breezier on Tuesday with plenty of lengthy sunny spells. Chilly by night with frost patches.

Wed 19 Mar South West England

High pressure is expected to be centred to the east of the UK initially, with a good deal of fine, dry and reasonably sunny weather in a south to southeasterly flow. Temperatures are expected to rise, to well above average in some areas. Later in the week there will likely be a gradual transition to less settled conditions from west to east, as low pressure becomes more dominant with an increasing chance of rain or showers by the weekend and into the final week of March, perhaps heavy in places. Temperatures, initially above average, will likely trend back closer to normal, although with more cloud this will tend to reduce the risk of frost to an extent.

Thu 20 Mar South West England

High pressure is expected to be centred to the east of the UK initially, with a good deal of fine, dry and reasonably sunny weather in a south to southeasterly flow. Temperatures are expected to rise, to well above average in some areas. Later in the week there will likely be a gradual transition to less settled conditions from west to east, as low pressure becomes more dominant with an increasing chance of rain or showers by the weekend and into the final week of March, perhaps heavy in places. Temperatures, initially above average, will likely trend back closer to normal, although with more cloud this will tend to reduce the risk of frost to an extent.

Porton Down Weather Forecast

Today 14 Mar South West England

Tonight 14 Mar South West England

Sat 15 Mar South West England

Sun 16 Mar South West England

Mon 17 Mar South West England

Tue 18 Mar South West England

Wed 19 Mar South West England

Thu 20 Mar South West England

Temperature Forecast Met Office

Temperature Real-Time

Dean Hill (Wiltshire) Radar

National Satellite

National Synoptic

Porton Down Temperature Statistics

March Temperature

Boscombe Down (4km)

Lowest 5 March, 2025

Average 2025

Highest 9 March, 2025

Lowest 28 February, 2025

Average February

Highest 21 February, 2025

Lowest 5 March, 2025

Average March

Highest 9 March, 2025

Climate (2020–Present)

Boscombe Down (4km)

Average Low 2020–2025

Average 2020–2025

Average High 2020–2025