Snow threat exposes March’s mood swings as warm weekend gives way to a colder turn
A day that already delivered temperatures reaching 20°C in a few locations will be followed by a warm, settled weekend and then a rapid switch back to cooler conditions with a renewed chance of snow as the week progresses.
What is the forecast?
Verified facts: High pressure will dominate early in the period, producing long spells of sunshine and temperatures in the mid to high teens for much of the country. Any early mist and fog may be slow to clear but conditions are expected to be largely fine and dry. From Sunday a weakening band of cloud and patchy rain will move southeast across the country, with sunny spells and scattered showers across northern areas; some showers may turn wintry over higher ground.
Steve Willington, Met Office Chief Forecaster at the Met Office, said: “While the early part of the period brings warm sunshine for many, it’s not unusual to see colder spells and even some wintry showers in March. As we head into next week, a shift to a cooler north‑westerly flow will bring a drop in temperature and more unsettled weather, including some hill snow in the north and brisk winds at times. This pattern is entirely typical for the time of year. ”
Analysis: The sequence described combines a transient spell of unusually mild spring weather with a reassertion of more seasonable conditions. The presence of high pressure early on gives way to a more mobile Atlantic pattern, so the warm weekend should be treated as brief rather than sustained.
Where could Snow fall?
Verified facts: Early next week a more mobile Atlantic pattern will develop, with rain spreading into northern and western areas and occasionally turning to snow over Scottish mountains. Stronger winds are expected in the north with coastal gales at times. By midweek the UK will sit in a cooler north‑to‑north‑westerly flow bringing frequent showers, some heavy and wintry over higher ground, and snow could possibly reach lower levels in the north later in the day. Towards the end of the week higher pressure is expected to build again from the west, reducing showers and easing winds, although temperatures are likely to remain on the cool side with some overnight frost possible.
Analysis: The greatest concentration of wintry precipitation is forecast for upland areas, with a credible risk of snow on the Scottish hills and the possibility of brief incursions to lower northern levels if the north‑westerly push deepens. The expected tightening of the thermal profile behind the leading fronts is the mechanism that shifts showers from rain to wintry precipitation at altitude.
What this swing means for the week ahead
Verified facts: After the settled, sunny spell temperatures are expected to fall as the flow turns north‑westerly. Rain will spread into northern and western areas early in the week, and stronger winds are likely in the north with coastal gales at times. Conditions should become cooler and more unstable by midweek, with frequent showers and isolated heavy bursts over higher ground.
Analysis: The rapid transition from mild spring sunshine to a cooler, more unsettled pattern increases variability in conditions over a short timescale. That variability is the central practical concern: daytime warmth will encourage outdoor activity during the weekend, but a shift in the synoptic pattern means people, businesses and transport operators should expect a return to colder, windier and at times wintry conditions.
Verified facts have been drawn from the Met Office forecast and public briefing from the Met Office Chief Forecaster, Steve Willington. Analysis here is the newsroom’s synthesis of those verified statements and the practical implications they imply.
Forward look: Monitor updates as the Atlantic low approaches and the north‑westerly flow establishes itself; the initial sunny spell will be a brief interlude ahead of a week that returns temperatures toward or a little below seasonal averages with a renewed chance of snow in northern and higher areas.
