Thetford (Norfolk) weather

Headline:

Dry and bright start then becoming cloudier with isolated showers.

Today:

Starting dry with bright or sunny spells, after any early fog clears. Then cloud will gradually increase from the west, bringing a chance of a few showers. However, many eastern areas will remain dry. Temperature near average. Generally light winds. Maximum temperature 10 °C.

Tonight:

Overcast with patchy light rain or showers, and areas of low cloud developing. A few limited clear spells may occur, leading to patchy fog. Minimum temperature 3 °C.

Sunday:

Generally cloudy with outbreaks of rain, light winds and any early patchy fog slowly clearing. Maximum temperature 9 °C.

Outlook for Monday to Wednesday:

Monday largely dry and cloudy. Spells of sometimes heavy rain for Tuesday. Wednesday possibly cloudy with outbreaks of rain. It will often be breezy with temperatures likely near average.

Frontal systems over the North Atlantic, steered by a south-shifted jet stream, are likely to approach the UK at times, but tending to stall as they encounter a blocking area of high pressure to the north and northeast. This will result in further spells of rain at times, falling in areas already sensitive to flooding. As these bands of rain spread northwards, some snow will be possible on high ground in northern England and Scotland as they encounter colder air. A subtle shift southwards of these areas of low pressure is anticipated during the second week of February, which may allow a greater chance of colder air to spread across northern UK at least, bringing an increased risk of wintry hazards for a time.

Whilst confidence is lower through this period, a south-shifted jet stream is likely to persist much of the time, steering areas of low pressure towards and south of the UK. This is likely to bring further spells of wet and windy weather, rain most frequent in the south and west, and perhaps also eastern Scotland, with the driest conditions, relative to normal, in northwest Scotland. Some hill snow will be possible at times as the wet weather encounters colder air across northern parts of the UK. Temperatures for the period as a whole will likely be close to average in the southwest, but a little below in the northeast.