Honestly, if you've lived in Washington County for more than a week, you know the drill. You wake up and it’s freezing. By lunch, you’re peeling off layers like an onion because the sun decided to show up. Then the sun dips behind the horizon and—bam—you're shivering again. It’s basically the Bartlesville tax.
Right now in Bartlesville, we’re sitting at 39°F. It’s nighttime, the sky is clear, and the humidity is hovering around 47%. If you’re stepping outside to walk the dog or grab something from the car, it actually feels more like 35°F. That southwest wind is barely moving at 5 mph, but in this neck of the woods, even a light breeze can bite when the sun’s gone.
The Breakdown of Today's Wild Ride
Looking at the bartlesville ok weather hourly trajectory for Sunday, January 18, 2026, we’ve seen a massive spread. We hit a high of 49°F during the sunny afternoon hours. That’s pretty decent for January! But don't get too comfortable. The forecast low for tonight is a staggering 15°F.
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That’s a 34-degree drop.
You’ve gotta be prepared for that kind of volatility. It’s not just "winter weather"; it’s Oklahoma winter weather. One minute you’re enjoying a UV index of 3 under a bright sun, and the next, you’re looking at a 10% chance of snow as the clouds roll in overnight.
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Why the Hourly Matters More Than the Daily
Most people just glance at the high and low on their phone and call it a day. Big mistake. In Bartlesville, the timing of the wind shift is everything. Today, we had southwest winds at 10 mph during the day, which helped push us toward that nearly 50-degree mark. But as those winds shift or die down, the heat radiates off the pavement and into the atmosphere fast.
If you were planning on being out around 3 PM, you likely saw that peak of 48°F. By 6 PM, the thermometer usually starts its nose-dive, dropping into the 30s before you’ve even finished dinner. By 9 PM, we're already seeing temperatures around 33°F.
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- Precipitation check: We had 0% chance during the day.
- Tonight's twist: That chance of snow bumps up to 10% after midnight.
- Humidity: It’s staying relatively low at 43% for the day, so it’s a "dry cold," but that doesn't make 15 degrees feel any better.
Surviving the Bartlesville Dip
Usually, when we see these clear days followed by cloudy nights in January, it’s a sign of a front settling in. Tomorrow, Monday, is looking way colder with a high only reaching about 30°F. Basically, today was the last "warm" gasp for a bit.
The real expert tip for navigating the bartlesville ok weather hourly? Watch the "Feels Like" temperature. Because of our open landscape, that wind chill is a liar. It might say 39 degrees on the sign at the bank, but your skin is telling you it's 30.
Make sure your outdoor faucets are covered tonight. With a low of 15°F coming, those pipes are at risk if they aren't protected. Also, if you’re commuting early tomorrow morning, give yourself an extra five minutes. That 10% snow chance isn't much, but on cold pavement, even a dusting can turn the drive down Highway 75 into a skating rink.
Check your tire pressure too. These big temperature swings cause the air in your tires to contract, and there's nothing more annoying than a "low pressure" light flickering on when you're already running late. Stay warm out there.