Katy weather is a bit of a gamble right now. Honestly, if you’ve lived here for more than a week, you know the drill. One minute you're reaching for a light sweater, and the next, you’re wondering if you should have just stayed in bed. Today, Wednesday, January 14, 2026, the weather forecast for Katy is handing us a classic Texas mix: crisp sun and a biting wind.
We’re looking at a high of 67°F. Sounds nice, right? Well, sort of.
That 20 mph northwest wind is going to make it feel a lot sharper than the thermometer suggests. If you’re heading out to LaCenterra or just taking the dog for a walk around Willow Fork Park, don’t let the bright blue sky fool you into leaving your jacket behind. Tonight, things take a dive. We're dropping to a low of 42°F under clear skies. It’s the kind of night where the humidity—sitting at a thick 92% earlier this morning—actually makes the cold feel like it’s seeping into your bones.
Why the Katy Forecast Is So Weird This Week
The Gulf of Mexico is basically our backyard, and it’s constantly fighting with the dry air coming down from the Plains. This week is a perfect example of that tug-of-war.
Yesterday was a total wash. Rain everywhere. Today? Bone dry. Tomorrow, Thursday, January 15, stays sunny with a high of 60°F and a low of 40°F. It’s stable, but chilly. But wait until Friday—we’re jumping back up to 71°F. That’s an 11-degree swing in 24 hours. This is why people in Katy have "closet vertigo." You can't put away the winter gear, but you also need your t-shirts ready for Friday afternoon.
The Snow Myth Everyone Talks About
Every time the temperature dips near 40°F, someone on a local Facebook group starts asking if it’s going to snow.
Look, the reality is that Katy rarely hits that 32°F sweet spot for actual accumulation. Our average low in January is around 44°F, which is well above freezing. Even when we do get the "ingredients," as the meteorologists call them, the ground is usually too warm from a 70-degree day forty-eight hours prior. However, the City of Katy Office of Emergency Management is already keeping an eye on Saturday night, January 17.
✨ Don't miss: New York State Midday Numbers Explained (Simply)
The forecast shows a low of 36°F. There’s a tiny, 5% chance of some "mixed precipitation"—which is usually just code for "cold rain that might look like a slushie for three minutes." Don't go buying a sled yet.
Navigating the 10-Day Rollercoaster
If you're planning your week, keep your eyes on the backend of the forecast.
- Friday, Jan 16: 71°F / 46°F. Perfection. Go outside.
- Saturday, Jan 17: 55°F / 36°F. A massive drop. Cloudy and breezy.
- Monday, Jan 19: 66°F / 45°F. Rain chances start creeping back in (35%).
- Tuesday & Wednesday (Jan 20-21): This is where it gets messy. We’re looking at a 75% chance of rain on Wednesday with a high of 63°F.
That mid-week system is looking pretty soggy. According to the National Weather Service, these types of setups often bring that gray, persistent drizzle that turns the I-10 commute into a nightmare. If you have outdoor plans for next Wednesday, you’ll probably want a Plan B.
What Most People Miss About Humidity
We talk about the "feels like" temp constantly. In Katy, humidity isn't just a summer thing. Today’s 55% humidity is actually quite low for us, which makes the air feel "crisp." When that number climbs back into the 70s and 80s next week, 60 degrees is going to feel a lot more damp and uncomfortable.
It’s that "wet cold" that Texas is famous for. It sticks to you.
Actionable Steps for the Next 48 Hours
Stop checking the app every five minutes and just do these three things.
First, check your tire pressure today. This 20-degree drop from yesterday's highs to tonight's lows is the prime trigger for that annoying "low pressure" light on your dashboard.
Second, if you have sensitive plants outside, Saturday night is your real concern, not tonight. 36°F is close enough to a frost in the low-lying areas near the bayous that you’ll want to throw a frost cloth over the hibiscus.
Third, prep for the wind. That 20 mph northwest wind today is enough to knock over empty trash cans or send patio cushions flying into the neighbor's yard. Secure the loose stuff before the sun goes down and the wind chill really kicks in.
Stay warm, keep an eye on the Saturday night dip, and enjoy the Friday warmth while it lasts.