Honestly, if you've lived in Hertfordshire for more than five minutes, you know that the weather forecast for Hatfield is less of a scientific prediction and more of a polite suggestion. It's January 18, 2026. The sky is that specific shade of "Hertfordshire grey" that makes you want to crawl back into bed with a massive mug of tea.
Currently, it's about 46°F out there. Damp. Cloudy. Basically, the atmosphere is a giant, wet sponge.
Why the Hatfield Forecast is Kinda Tricky Right Now
People think January is all about frost and snow. Not today. We're currently sitting with a humidity level of 94%. That’s high. Like, "your hair is going to frizz the second you step out of the Galleria" high.
The wind is barely moving, just a 5 mph breeze from the southeast. It’s that weird, stagnant cold that feels deeper than it actually is because of the moisture. You’ve probably noticed the mist lingering over the A1(M) or settling in the lower bits of Ellenbrook Fields.
That’s the thing about Hatfield. It’s not just one climate. You’ve got the higher ground near the University of Hertfordshire De Havilland campus where the wind bites a bit harder, and then the sheltered spots in Old Hatfield where the fog just... sits.
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What the Next Few Days Actually Look Like
Don't expect a tan. For tomorrow, Monday, January 19, the high is pushing 49°F, which is surprisingly mild for this time of year. But there's a catch. Light rain is basically guaranteed. We’re looking at about a 25% chance of precipitation during the day, dropping slightly to 20% at night.
Tuesday is where it gets interesting.
The high stays around 48°F, but the wind is going to wake up. We’re expecting gusts from the southeast hitting 15 mph. By Tuesday night, the chance of rain jumps to a soaking 65%. If you’re planning a late run or walking the dog near Stanborough Lakes, maybe don't. Or at least bring the heavy-duty raincoat.
The Mid-Week Slump and the Snow "Threat"
By Wednesday and Thursday, the temperature starts a slow, agonizing slide. We’re looking at highs of 46°F. It’s consistent, if nothing else. Rain chances hover around 40% on Wednesday.
Then comes the weekend.
Sunday, January 25, is when the "will it, won't it" snow drama starts. The high drops to 40°F and the low hits 34°F. The current weather forecast for Hatfield suggests a mix of rain and snow overnight.
Honestly? It’ll probably just be slush.
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The ground is too wet and the air is just a couple of degrees too warm for the "good" kind of snow. You know, the kind that actually stays on the ground for more than twenty minutes. Instead, we’ll likely get that grey, icy mush that makes the pavement near the train station a total death trap.
Comparing This to the Usual Chaos
Normally, Hatfield in January sees an average high of about 44°F (7°C). We’re actually trending a little warmer than the historical average this week. Is it "warm"? No. It's cold. But it's not the "freeze your pipes" kind of cold we’ve seen in previous Januaries.
Interestingly, the UV index is a flat 0. You could stand outside all day and the sun wouldn't even know you were there. It’s been pretty much constant cloud cover—about 68% of the time, the sky is just obscured.
Survival Tips for the Week Ahead
If you’re commuting or just trying to live your life in AL10, here’s the reality:
- Waterproof everything. It’s not going to be a downpour, but that 20-30% "light rain" is the kind of fine mist that soaks through "water-resistant" jackets in ten minutes.
- Watch the visibility. With these light winds (8-10 mph) and high humidity (90%+), morning mist is going to be a real thing, especially on the B197.
- Layering is your friend. 49°F feels okay when you're walking, but the second that 16 mph wind hits on Friday, you'll feel every bit of that 38°F low.
The weather forecast for Hatfield shows a definite cooling trend as we head toward the end of the month. Monday, January 26, and Tuesday, January 27, are looking even colder, with highs of only 40°F and lows hitting 33°F. That’s when the snow chances actually start to look legitimate, with "rain and snow" predicted for both days.
Basically, enjoy the "warm" 49°F tomorrow while it lasts. By this time next week, you’ll be digging out the de-icer and wishing for these 40-degree nights.
Actionable Next Steps:
Check your car's tyre pressure and fluid levels today. The drop in temperature towards the 33°F mark next week can affect tyre pressure, and you’ll definitely want a full tank of screen wash for the gritted roads. If you're planning any outdoor maintenance, aim for Monday afternoon—it's the warmest window you've got before the rain chances and winds start to climb.