You’ve finally booked the flight. The hotel on the Strip is confirmed, and you’re already mentally tasting those overpriced cocktails. But then you check the 10 day las vegas weather forecast, and suddenly, the suitcase you packed with tank tops and shorts looks like a massive mistake.
Honestly, the biggest myth about Vegas is that it’s always "surface-of-the-sun" hot. People forget that this is a high-altitude desert. In January, the desert doesn’t care about your pool party plans. Right now, as of Sunday, January 18, 2026, the city is sitting at a cool 47°F at night with mostly cloudy skies. It’s not exactly the tropical paradise the movies promise, is it?
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The Reality of the Next 10 Days
If you're heading out this week, you're looking at a mixed bag. Today, Sunday, January 18, is actually one of the nicer days with a high of 65°F. It’s mostly sunny, which is great for walking the Strip, but keep in mind that once that sun dips behind the mountains, the temperature is going to crater to 43°F.
Tomorrow, Monday the 19th, is the standout. We’re looking at a high of 68°F. It’s going to be sunny, but there’s a 11 mph wind coming from the north. In Vegas, an 11 mph wind feels like nature is personally trying to ruin your hair.
The middle of the week—Tuesday and Wednesday—sees a slight dip. We’re talking highs of 61°F and 60°F. The lows stay consistent at 43°F. Basically, if you aren't wearing layers, you’re going to be miserable. You’ll be sweating inside the heated casinos and shivering the second you step through those automatic sliding doors.
Why the Forecast Matters for Your Itinerary
A lot of visitors think they can just "power through" the cold. Don't be that person. On Thursday, January 22, the high drops to 58°F under mostly cloudy skies. That is legitimately chilly when you're caught in the wind tunnels between the massive resorts like Caesars Palace and the Bellagio.
Here is the quick look at the numbers you actually need:
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- Highest High: 68°F (Monday, Jan 19)
- Lowest High: 58°F (Thursday, Jan 22)
- Consistent Lows: Mostly hovering around 43°F to 45°F
- Rain Chance: Surprisingly low. Most days are showing a 0% to 10% chance. You probably won't need an umbrella, but the clouds will linger.
What to Actually Pack (The Expert View)
Most travel blogs tell you to pack a "light jacket." Kinda vague, right? Let’s be real: you need a denim jacket or a light puffer for the daytime and a legitimate coat for the evening. If you’re planning on seeing the Fountains of Bellagio at 9:00 PM, a "light sweater" isn't going to cut it when it's 45°F with a desert breeze.
The humidity is sitting around 23% for most of the week. That sounds like a technical stat, but it means your skin is going to feel like parchment paper. Pack the heavy-duty moisturizer and some Lip Balm. Trust me. Also, the UV index is low (around 2), but that desert sun is deceptive—you can still get a burn if you’re out hiking Red Rock Canyon for four hours.
Beyond the Strip: The Microclimates
If you're planning on leaving the neon behind, the weather changes fast. Mount Charleston is a totally different world. While it’s 65°F on the Strip, it could be snowing up there. If you're heading to the Grand Canyon, subtract another 10-15 degrees from the Vegas forecast.
The wind is the real "wild card" in the 10 day las vegas weather forecast. By Saturday, January 24, we’re seeing the humidity tick up to 27% and the lows climbing slightly to 46°F. It’s a slow warming trend, but nothing that's going to have you jumping in a pool. Most outdoor pools are closed this time of year anyway, and the ones that stay open are heated to the point of being giant bathtubs.
Actionable Next Steps for Your Trip
Don't let the 60-degree highs fool you into thinking it's warm. The lack of humidity makes the air feel thinner and colder than a 60-degree day in, say, Florida or New York.
- Check the wind speeds specifically: Anything over 10 mph makes the "feels like" temperature drop significantly.
- Layering is the only way: A t-shirt, a hoodie, and a windbreaker/jacket. You'll be shedding and adding layers all day as you move from the chilly outdoors to the 72°F casino floors.
- Hydrate more than you think: The dry air (22-23% humidity) will dehydrate you faster than the heat does, especially if you're enjoying a few adult beverages.
Plan your outdoor activities for the late morning or early afternoon when the sun is at its peak. Avoid the outdoor shows after 8:00 PM unless you're bundled up. The desert is beautiful in January, but it demands a little respect for its temperature swings.