So, you’re looking at the 14 day forecast st george utah and wondering if you should pack a swimsuit or a parka. Honestly, St. George weather is a bit of a tease this time of year. While the rest of the state is dealing with gray inversions and bone-chilling fog, we’re sitting down here in the desert basically living in a different universe.
Right now, as of Saturday, January 17, 2026, it is a crisp 53°F and sunny. We've got a tiny 2 mph breeze coming from the west, and the humidity is sitting at a bone-dry 28%. If you’re coming from the Wasatch Front, that sounds like paradise, right? Well, yeah, but don’t let the "Dixie" nickname fool you into thinking it's tropical 24/7.
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The Reality of the 14 Day Forecast St George Utah
If you’re planning a trip for the next two weeks, you need to understand the "desert swing." It's basically a temperature roller coaster. Today, we’re hitting a high of 60°F, but the second that sun dips behind the red cliffs, it's going to plummet. We’re talking a low of 34°F tonight.
Here is the breakdown of what the next several days look like according to the latest data:
- Sunday, Jan 18: Mostly cloudy with a high of 58°F. There’s a weird 10% chance of snow in the daytime and rain at night. Yeah, snow. It happens.
- Monday, Jan 19: Back to perfection. 60°F and sunny. Low of 34°F.
- Tuesday, Jan 20: A slight dip to 58°F, but still clear skies.
- Wednesday, Jan 21: 60°F again. This is that classic St. George winter "sweet spot" people move here for.
Most people get wrong that "it's always warm in St. George." It's not. It's mild. If you try to hike Snow Canyon in a t-shirt at 8:00 AM, you’re going to have a bad time.
Rain, Snow, and Red Dirt
Believe it or not, the 14 day forecast st george utah actually shows some moisture creeping in toward the end of the month. By Sunday, January 25, we’re looking at light rain with a 25% to 35% chance throughout the day and night. The high will be 61°F.
The interesting part? Temperatures actually start climbing a bit toward the end of this forecast period. By Tuesday, January 27, we’re hitting 66°F. That’s nearly 13 degrees above the historical January average high of 53.3°F. 2025 was one of the warmest years on record for Utah, and 2026 seems to be keeping that energy.
Actually, the National Oceanic and Atmospheric Administration recently noted that St. George's 2025 temps landed in the top 10 hottest ever. This means our "winter" is feeling more like a long, drawn-out spring.
What to Pack (The Non-Corporate Version)
Don't be the person who brings only shorts. You'll look like a tourist and you'll be shivering by dinner.
- Layers are your god: You need a light puffy jacket for the mornings and a breathable long-sleeve for the afternoons.
- Sunscreen is mandatory: Even with a UV index of 2 or 3, that desert sun bouncing off the Navajo Sandstone is no joke.
- Moisturizer: 28% humidity will turn your skin into parchment paper in about three hours.
Why This Forecast Matters for Your Trip
If you're eyeing Zion National Park or Sand Hollow, the next 14 days are actually prime. While Northern Utah is trapped under "hazy skies" and "unhealthy AQI levels" due to valley inversions—thanks to that high-pressure cap—St. George is mostly clear.
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The wind is staying low, mostly between 1 mph and 4 mph. This is huge. Wind in the desert can make 55°F feel like 30°F. Without it, sitting in the sun at 60°F feels like a dream.
Check the forecast one more time before you head out. Sunday (Jan 25) and Monday (Jan 26) have the highest chances for rain, so maybe save the indoor stuff like the Dinosaur Discovery Site for those days.
Essentially, you’re looking at a stretch of weather that is significantly warmer than the historical norms, with plenty of sun and just a couple of days where you might need an umbrella. It’s definitely "golf and hiking" weather, not "pool party" weather.
Actionable Next Steps
- Watch the Sunday transition: The 10% chance of snow on Jan 18 is small but could make the Black Ridge pass on I-15 tricky if it hits right.
- Book tee times for Jan 19-21: These look like the most stable, sunny days in the immediate window.
- Monitor the Jan 25 rain: If you’re mountain biking, remember that some trails near St. George (like those in the Red Cliffs Desert Reserve) shouldn't be ridden when wet to avoid damaging the crust.