You’ve probably stepped outside this morning and felt that sharp, biting chill that only an Inland Empire winter can deliver. It’s funny how people think Southern California is all palm trees and endless heat, but anyone living near the San Bernardino mountains knows better. Honestly, the weather in Redlands today is a bit of a rollercoaster if you aren't prepared for the swing.
We started the day in a deep freeze. Right now, it’s a crisp 46°F. If you’re heading out early, that northeast wind at 3 mph isn't exactly a gale, but it’s enough to make you regret leaving your jacket on the coat rack. Humidity is sitting at 60%, which gives the air that heavy, damp feeling before the sun really gets to work.
The Wild Temperature Swing: From 45°F to 78°F
Here is the thing about Redlands: we live in a basin that loves to trap cold air at night and soak up the sun during the day. Today, Friday, January 16, 2026, is the perfect example of that. While the low hit 45°F, the high is projected to climb all the way to 78°F.
That is a 33-degree difference.
Basically, you’re going to be freezing during your morning coffee and sweating by your lunch break. It’s "layering season" in its purest form. The sky is currently clear, and it’s going to stay sunny for the vast majority of the day. You can expect a light northwest wind around 5 mph this afternoon, just enough to keep things from feeling stagnant.
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Why Redlands Feels Different Than its Neighbors
If you’ve ever driven from Riverside or San Bernardino into Redlands, you’ve probably noticed the temperature can shift by several degrees in just a few miles. This isn't your imagination. Redlands sits at an elevation of roughly 1,350 to 1,500 feet, nestled right against the foothills.
This geography creates a microclimate. Cold air drains down from the Crafton Hills and the San Bernardinos, pooling in the lower parts of town. It’s why your neighbor’s citrus trees might be fine while yours are shivering.
Today’s UV index is a 3, which is relatively low, but with the clear skies, that Inland Empire sun is still potent. Don't let the "winter" label fool you into skipping the sunscreen if you're hitting the trails at San Timoteo Canyon or walking around the University of Redlands campus.
What to Expect for the Rest of the Day
As the sun begins to set later this afternoon, the conditions will shift again.
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The clear blue sky will start to see some "partly cloudy" action as we move into the night. It’s not looking like a storm is brewing, though. The chance of precipitation today is a flat 0% during the daytime. Tonight, that creeps up just a tiny bit to 5%, but honestly, that's more of a "maybe a stray mist" than actual rain.
The humidity is also going to plummet as the day warms up, dropping to around 28%. That’s typical dry SoCal air. It’s the kind of weather that makes your skin feel a little tight and has everyone reaching for the Chapstick.
Air Quality and the "No-Burn" Reality
One thing most people forget to check alongside the temperature is the air quality. Today, the AQI is looking Good, sitting around a 33. That’s great news for runners and anyone heading to Prospect Park for a hike.
However, you should be aware that the South Coast AQMD often issues "No-Burn" alerts this time of year. Even if it feels like a perfect night for a backyard fire pit, those fine particles can get trapped in our basin. It's always worth checking the mandatory wood-burning ban status before you light up the fireplace, as fines are a real thing in San Bernardino County.
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Survival Tips for Today’s Redlands Forecast
Knowing the weather in Redlands today is one thing; living through it without being miserable is another.
First, ditch the heavy parka by 10:00 AM. You’ll want a light shell or a sweater that you can easily toss in the backseat. Second, stay hydrated. That 28% humidity will sneak up on you, especially if you’re active.
Lastly, take advantage of the sunny 78°F peak. We’re in that sweet spot of January where the weather is actually better than most of the country’s summer. It won't last forever, and the "partly cloudy" shift tonight is a reminder that winter hasn't totally left the building.
If you’re planning your weekend, keep an eye on those overnight lows. We’re staying in the mid-40s for the foreseeable future, so keep those frost blankets handy for your sensitive succulents. Redlands is beautiful, but its weather is definitely a game of two halves.
Your Actionable Next Steps:
- Layer Up: Wear a base layer that works for 78°F and a jacket for the 46°F morning.
- Check Your Garden: Ensure any frost-sensitive plants are watered; hydrated plants handle the 45°F overnight lows better than dry ones.
- Outdoor Plans: Aim for outdoor activities between 11:00 AM and 3:00 PM to catch the best of the warmth.