Today's weather: A blustery, rainy day could turn to hail – here's how election day weather is shaping up

I'm sitting here looking out the window, and I can almost guarantee there are a few people out there who've already popped an umbrella in their bag. We're in for a classic, fickle spring day today, and if you're planning to head out – perhaps to cast your vote – then you need to be ready for a bit of everything. This isn't one of those days where you can assume it'll stay the way it started.

From grey skies to westerly winds: how the day will unfold

It's typical to wake up to a morning that might even offer a glimpse of sun. But don't get too comfortable. That won't last. I've been checking the local weather services this morning, and there's no doubt we're in for a pretty blustery afternoon. It all starts with a front moving in over Jutland and slowly working its way east. Through the morning, most places can expect a spell of persistent rain, and come the afternoon, things get interesting. That's when the wind swings to the west, and the temperature drops a couple of degrees.

I know we all have our favourite apps. Some swear by the precision of the newer weather apps, while others stick with the good old portals. But no matter which service you use, the forecasts are all pointing the same way: it'll be cold enough that the driving rain could change its character at some point.

Election day weather: Funen and Zealand need to watch for sleet

Let me get straight to it, because I know a lot of you are heading out to vote today. If you live on Funen or in the capital area, this is especially relevant for you. The models show that when the front reaches the eastern parts, the air gets so cold that this rainy day could end with hail and sleet. I've looked at a few of the local updates, and it's especially between 4 and 6 PM that the risk of something white drifting down is highest. So if you're queuing outside a polling station, it's a good idea to have a beanie on – or at the very least, a solid windproof jacket.

I vividly remember an election a few years back where the weather was exactly like this: half damp, half chilly. Back then, people thought it was just a passing shower, but ended up standing there freezing for half an hour. Don't make that same mistake.

• Central and West Jutland: You'll get it relatively early. Rain in the morning, but clearing up in the afternoon. The wind gusts will still be noticeable though.
• Funen: You're in the tricky zone. Expect rain turning to sleet. This will be the coldest part of the country this afternoon.
• Zealand & Lolland-Falster: Try to get your errands done before late afternoon. It's going to be wet, windy, and sleety in the evening.

Can we trust the long-range forecasts?

When I chat to people at the supermarket or out on the street, someone always asks: "Morten, can you really trust those 14-day forecasts?" And my answer is always the same: they give you a good idea of the trend, but the last 24 hours are what really decide things. Right now, it looks like we've got a calmer weekend to look forward to, but first we've got to get through this shift. I can promise you one thing: you'll need that umbrella today. That's not even a question – it's an order from someone who's had to change their shoes three times in one day before.

Keep an eye on the weather radars around midday, because that's where you'll get the precise minute-by-minute picture. But until then: dig out the big umbrella, pack an extra jumper, and remember – even if it looks grey out there now, it's only weather. We'll get through it.