Honestly, if you've lived in the Bayou City for more than a week, you know the drill. You check the app, see a "sunny" icon, and then somehow end up shivering in a light jacket because the wind shifted three degrees. Tomorrow, Monday, January 19, 2026, is basically one of those classic Houston winter days where the numbers on the screen don't quite tell the whole story of how it’ll feel when you're walking from the parking garage to your office.
We're looking at a high of 65°F and a low of 42°F.
On paper? That's gorgeous. In reality? It’s a bit of a thermal rollercoaster. You’re going to start your morning in the low 40s—which, with our humidity, feels like a slap in the face—and then end up wishing you hadn't worn that heavy wool sweater by 2:00 PM.
The Hour-by-Hour Breakdown for Monday
Let's get into the weeds of the weather houston tomorrow hourly schedule. It's MLK Day, so whether you’re heading to a parade or just enjoying a rare Monday off, the timing of the temperature swing matters.
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Around 6:00 AM, it's going to be crisp. We’re talking 41°F or 42°F. The sun doesn't officially show its face until 7:16 AM, so that early morning dog walk is going to be a "two-cup-of-coffee" situation. The good news? The wind is being incredibly polite. We’re looking at a light west wind at about 3 mph. That’s basically a stagnant air mass, which means we won’t have a biting wind chill to deal with, even if the air itself is cold.
By 10:00 AM, we hit the mid-50s. This is the "Goldilocks zone." If you’re outside, this is peak Houston winter. The sky will be mostly sunny, and the humidity is sitting at a very un-Houston-like 39%. It’s dry. It’s clear. It’s actually pleasant.
The Afternoon Peak and the Evening Shift
Lunchtime sees us hitting 62°F, climbing toward that 65°F peak around 3:00 PM. But keep an eye on the sky. While the day is mostly sunny, the forecast calls for things to turn mostly cloudy as we move into the night.
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Sunset happens at 5:48 PM. Once the sun dips behind the skyline, the temperature starts its inevitable slide back down. By 9:00 PM, we’re looking at 54°F.
Here is the kicker most people miss: the precipitation chance. During the day, it's 0%. You're safe. But overnight? That chance creeps up to 10% for rain. It’s not a washout—not by a long shot—but don’t be shocked if you see some mist on your windshield if you're out late.
Why This Specific Forecast Matters
Weather experts, like the team over at Space City Weather, often talk about "uneventful fronts." This is exactly that. We just had a chilly weekend, and Monday is the transition point before clouds really take over on Tuesday.
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The UV index is hitting a 3. That’s low, but if you’re fair-skinned and spending the whole day at an outdoor event, it’s just enough to give you a "winter glow" you didn't ask for.
Most people see "65 degrees" and think short sleeves. Don't do it. Houston's 65 with 39% humidity feels different than 65 in a desert. It’s a damp kind of cool that lingers.
Practical Steps for Your Monday
- Layering is the only way: Start with a base layer and a medium jacket. You’ll be shedding that jacket by 1:00 PM and putting it back on by 6:00 PM.
- Check your tire pressure: These 20-degree swings (from 42°F to 65°F) are notorious for triggering those annoying "low tire pressure" sensors in your car.
- Outdoor plans are a go: If you're planning a BBQ or a park trip, tomorrow is actually the best day of the week. Tuesday and Wednesday are looking much gloomier with higher rain chances.
Basically, enjoy the sunshine while it's here. By tomorrow night, the clouds move in, the humidity starts to climb back up, and that "mostly sunny" vibe will be a distant memory. Stay warm in the morning, stay cool in the afternoon, and you'll be just fine.