RAF Upavon Weather Forecast, Wiltshire SN9 6

Today 15 Sep South West England

A windy day with strong westerly winds and gales at times. Occasional brief heavy showers but also plenty of dry weather with sunny periods. Feeling cool in the wind. Maximum Temperature 17C.

Tonight 15 Sep South West England

Windy this evening with coastal gales at first but winds gradually easing into the early hours. Scattered showers, some heavy this evening, but many places turning drier overnight. Staying fairly mild. Minimum Temperature 11C.

Tue 16 Sep South West England

A drier day albeit still the chance of a few isolated showers. Sunny spells are likely through the morning, but any sunshine turning hazy through the afternoon. Still breezy. Maximum Temperature 17C.

Wed 17 Sep South West England

Remaining changeable and often windy with rain at times and a chance of coastal gales. A little milder and more humid by the end of the week.

Thu 18 Sep South West England

Remaining changeable and often windy with rain at times and a chance of coastal gales. A little milder and more humid by the end of the week.

Fri 19 Sep South West England

Remaining changeable and often windy with rain at times and a chance of coastal gales. A little milder and more humid by the end of the week.

Sat 20 Sep South West England

The broadly unsettled conditions look to continue during the first part of this period. All areas are likely to see some further spells of wet and at times windy weather, interspersed with brighter, showery interludes. By the start of the following week, a ridge of high pressure may extend eastwards towards the UK, bringing an increasing chance of longer periods of drier weather to northern areas initially, whilst low pressure remains closer to the south or southeast. Towards the end of this period, high pressure may be rather more dominant across the UK. A cooler interlude is likely for a time through next week, with chilly nights and fog patches likely under the influence of high pressure. Temperatures probably return closer to average by late September.

Sun 21 Sep South West England

The broadly unsettled conditions look to continue during the first part of this period. All areas are likely to see some further spells of wet and at times windy weather, interspersed with brighter, showery interludes. By the start of the following week, a ridge of high pressure may extend eastwards towards the UK, bringing an increasing chance of longer periods of drier weather to northern areas initially, whilst low pressure remains closer to the south or southeast. Towards the end of this period, high pressure may be rather more dominant across the UK. A cooler interlude is likely for a time through next week, with chilly nights and fog patches likely under the influence of high pressure. Temperatures probably return closer to average by late September.

RAF Upavon Weather Forecast

Today 15 Sep South West England

Tonight 15 Sep South West England

Tue 16 Sep South West England

Wed 17 Sep South West England

Thu 18 Sep South West England

Fri 19 Sep South West England

Sat 20 Sep South West England

Sun 21 Sep South West England

Temperature Forecast Met Office

Temperature Real-Time

Dean Hill (Wiltshire) Radar

National Satellite

National Synoptic

RAF Upavon Temperature Statistics

September Temperature

Larkhill (9km)

Lowest 4 January, 2025

Average 2025

Highest 12 August, 2025

Lowest 6 August, 2025

Average August

Highest 12 August, 2025

Lowest 14 September, 2025

Average September

Highest 6 September, 2025

Climate (2020–Present)

Larkhill (9km)

Average Low 2020–2025

Average 2020–2025

Average High 2020–2025