You've seen the app. It's usually a wall of grey icons that make you want to stay under the covers until April. But if you’re looking at the weather in snohomish 10 days out, you’re actually in for a bit of a plot twist. Honestly, it’s not just "more rain."
Right now, as of January 15, 2026, we’re sitting at a crisp 47°F with a northwest wind at 6 mph. It’s partly sunny, which is basically a Snohomish miracle for mid-January. If you’re planning your week, don’t just assume the drizzle is a given.
The Dry Spell Nobody Expected
Most people think January in the PNW is just one long, soggy puddle. Kinda true, usually. But the next few days are breaking the mold. Friday, January 16, is looking at a high of 50°F and actual, real-life sunshine. We’re talking clear skies by nightfall.
Then it gets even better. Saturday, January 17, is hitting 52°F. That’s nearly ten degrees above the historical average of 42°F for this time of year. If you’ve been waiting to clean out the gutters or hit the Centennial Trail without getting soaked, this is your window. Take it.
The "chilly" part is the overnight lows. We’re dropping to 32°F on Saturday night and 31°F on Sunday. It’s that sharp, biting cold that turns the morning grass into a crunch-fest.
Why the Sun is Sticking Around
Basically, we've got a ridge of high pressure playing defense against the typical Pacific systems. While the Cascades just got hammered with a Winter Storm Warning earlier this month—leaving 2 to 4 feet of snow in the high country—the valley floor is enjoying a breather.
It’s a weird contrast. You can look East and see the heavy white caps on the mountains, but in town, you might not even need the heavy parka for a midday walk.
When the Rain Actually Returns
Every local knows the blue sky is a tease. By Wednesday, January 21, the pattern shifts. We go back to the standard Snohomish "light rain" setting.
- Wednesday (Jan 21): 46°F High, 38°F Low. 20% chance of rain.
- Thursday (Jan 22): 45°F High, 39°F Low. 20% chance of rain.
- Friday (Jan 23): 44°F High, 39°F Low. 20% chance of rain.
It’s not a deluge. It’s just... damp. The humidity is going to hover around 82% to 88%, which means that "cold" feels a lot colder than the thermometer says. It’s that wet cold that gets into your bones.
The Snow Question
Is it going to snow? Probably not in the way you’re hoping for a sledding day. There’s a tiny 5% to 10% chance of "snow" mentioned for Friday and Saturday, but with highs in the 50s, it’s mostly just a data point for the weather nerds.
Wait—keep an eye on Saturday, January 24. There’s a 20% chance of rain during the day, but the nighttime forecast mentions a 20% chance of snow with a low of 39°F. That’s "slushy mix" territory at best. You likely won't need the shovel, but the roads might get a bit slick if that moisture lingers into the early morning hours.
Living With the Snohomish Convergence Zone
If you’ve lived here long enough, you know the weather in snohomish 10 days forecast can be a total liar because of the "Zone."
That gap in the Olympic Mountains lets air rush through and collide right over our heads. One minute it’s clear in Everett, and the next, Snohomish is under a localized downpour. This coming week, the winds are mostly gentle—around 1 to 3 mph from the southwest or northwest. That’s good news. Low wind means less chance of the Zone acting up and ruining your dry Saturday.
Practical Steps for the Week Ahead
Don't let the 50-degree highs fool you into thinking spring is here early.
- Layers are everything. You’ll want a light shell for the sunny Saturday, but you’ll need the heavy wool once the sun goes down and we hit that 31°F mark.
- Check the humidity. With levels hitting 90% today, watch for moisture buildup in your garage or basement.
- Drive for the frost. Sunday and Monday mornings (Jan 18-19) are going to be icy. Even if the sky is clear, the moisture from the previous days will freeze on the asphalt.
Enjoy the sun while it lasts. By the end of the 10-day stretch, we’re back to the grey, light rain, and 47-degree "standard" winter days.
Actionable Insight: Use the sunny window from Friday to Monday for any outdoor maintenance. Clear your drains now, because the light rain starting Wednesday is expected to persist through the following weekend, keeping everything consistently saturated.