Warmth and sunshine will boost pollen, making dry, breezy days the trickiest for allergy sufferers.
After a week of grey skies and persistent damp, Britain stands briefly at the threshold of summer — warm air pressing northward from the continent will bring temperatures as high as 28 degrees Celsius to central and eastern England by Thursday and Friday. Yet the season does not arrive cleanly: a low-pressure system anchored to the northwest refuses to yield entirely, leaving northern and western regions caught between competing forces. For hay fever sufferers, the returning warmth is a double-edged gift, as sunshine and breeze will lift pollen counts sharply after days of rain-induced suppression.
- After one of the wettest early Junes on record for several regions, a building European high is finally pushing summer warmth back into Britain — but it arrives unevenly and briefly.
- Two weather systems are locked in a tug-of-war: southern and central England will bask in genuine heat, while northern and western areas remain caught in a showery, unsettled pattern.
- The southeast may barely see a drop of rain this week, yet parts of Cumbria, Northern Ireland, and southern England have already exceeded their entire June rainfall averages — the relief will be partial at best.
- Hay fever sufferers face their worst days of the season on Thursday and Friday, when warmth, sunshine, and breeze will combine to drive grass pollen to peak levels after rain had briefly held it in check.
- The heat will not rival the continent — Paris and Berlin may reach 36 degrees while the UK stays moderate — and westerly winds are expected to pull temperatures back down by the weekend, with forecasters divided on what follows.
After a week of cool, damp conditions, the UK is about to rediscover summer. Temperatures will climb steadily through the coming days, reaching as high as 28 degrees Celsius across central and eastern England by Thursday and Friday — a sharp contrast to the chill that just passed. The warmth will be felt broadly, though its intensity will vary considerably by region and day.
The week is shaped by two competing systems: high pressure building over mainland Europe pushing warm air northward, and a stubborn area of low pressure lingering near the northwest. The result is a patchwork forecast — genuine sunshine in the south and east, scattered showers persisting in the north and west. Western Scotland and Northern Ireland will see their best days early in the week, while the real heat arrives later further south and east. By the weekend, a return of westerly winds will ease temperatures back toward seasonal norms, though some models hint at another warm spell the week after.
Rain will not vanish, but it will be scattered rather than relentless. That distinction matters, because several parts of the country have already absorbed more rainfall in the first half of June than they typically receive in the entire month — Norwich, Milton Keynes, Bournemouth, Cumbria, and parts of Northern Ireland among them. This week's drier interlude will offer some respite, without fully undoing the recent excess.
For hay fever sufferers, the warming trend brings an unwelcome complication. Grass pollen season is at its peak, and recent wet days had kept counts suppressed. Sunshine, warmth, and breeze — the dominant conditions expected Thursday and Friday — will change that quickly, creating some of the most challenging days of the season for allergy sufferers. The warmth, in other words, arrives with conditions attached.
After a week of cool, damp weather, the UK is about to remember what summer feels like. Temperatures will climb steadily through the coming days, reaching as high as 28 degrees Celsius in parts of central and eastern England by Thursday and Friday—a sharp contrast to the chilly spell that just passed. The warmth will be felt across all regions, though the intensity and timing will vary depending on where you are.
The week ahead sits at the intersection of two competing weather systems. High pressure building across mainland Europe will push warm air northward toward Britain, while a cooler, wetter area of low pressure lingers near the northwest. This tug-of-war means the forecast becomes a patchwork: spells of genuine summer sunshine will alternate with occasional bursts of rain, and the exact temperature you experience will depend partly on wind direction and cloud cover. Western Scotland and Northern Ireland will see their warmest days early in the week, with highs around 19 to 21 degrees. Elsewhere, most places will settle into the low to mid-20s on some days, with the real heat arriving later as the week progresses. By the time the weekend arrives, a shift to westerly winds will pull temperatures back down again, though some forecasting models hint at another warm spell the following week.
Rain will not disappear entirely, but it will be far less relentless than recent weeks. The pattern will be genuinely showery—scattered rather than widespread—which means rainfall totals will swing wildly depending on location. Northern and western areas, sitting closer to that low-pressure system, will catch more of it. The southeast, by contrast, may barely see a drop. This uneven distribution matters because several regions have already been drenched. Parts of southern England, Cumbria, the Isle of Man, Dumfries and Galloway, and Northern Ireland have already received more rain in the first half of June than they typically see in the entire month. Norwich, Milton Keynes, and Bournemouth have all surpassed their normal June rainfall totals already. This week's drier spell will offer some relief, though it will not erase the deficit from recent downpours.
For anyone who suffers from hay fever, the warming trend brings an unwelcome complication. Grass pollen season is at its peak, and recent rainy days have kept pollen counts suppressed. Sunshine and warmth will change that quickly. Higher temperatures trigger greater pollen emission, and the combination of warmth, sunshine, and breeze—conditions that will dominate Thursday and Friday—creates the worst possible environment for allergy sufferers. Those who have noticed increased sneezing and itchy eyes over the past few days should prepare for things to worsen as the week progresses.
The contrast with continental Europe will be striking. While Paris and Berlin could reach 35 or 36 degrees Celsius, the UK's position between two weather systems will keep things more moderate. The warmth will be real and noticeable after last week's chill, but it will not be extreme. By the weekend, the westerly winds will reassert themselves and temperatures will fall back to more typical levels for mid-June. The question now is whether that brief resurgence of heat some models are hinting at for the following week will materialize, or whether the cool pattern will reassert itself entirely.
Notable Quotes
Warmer days often mean greater pollen emission, and sunny, dry, breezy conditions are notoriously the trickiest days for allergy sufferers.— Weather forecast analysis
The Hearth Conversation Another angle on the story
Why does the forecast become so complicated this week? It sounds like the weather can't decide what it wants to do.
Exactly. There's high pressure sitting over mainland Europe pushing warm air north, and at the same time there's low pressure camping out near the northwest of the UK. They're pulling in opposite directions. That's why you get this patchwork of sun and showers instead of a clean, simple forecast.
So the rain won't stop completely, but it will be lighter than what people have been dealing with?
Much lighter. But here's the thing—it won't fall evenly. If you're in the north or west, you'll see more of it. If you're in the southeast, you might get almost nothing. And that matters because some places have already had their entire month's worth of rain in just two weeks.
That's remarkable. What about the heat itself—is 28 degrees unusual for mid-June?
Not unusual, no. It's close to what you'd expect for this time of year. What makes it notable is the contrast. Last week was cool and damp. This week will feel genuinely summery by comparison. But it's not a heat wave—it's just summer arriving on schedule.
And the hay fever situation?
That's the trade-off nobody wants. Warm, sunny, breezy days are perfect for pollen to spread. The rain has been keeping it down, but once the sun comes out and temperatures climb, people with allergies are going to feel it immediately. Thursday and Friday will be particularly rough.
So the warmth comes with a cost for some people.
It always does. Better weather for most means worse conditions for those dealing with allergies. That's just how it works.