Honestly, most people think they’ve got the Willamette Valley figured out. They expect gray skies and a constant drizzle from November until June. But if you’re looking at the dallas oregon weather forecast right now, you might be in for a surprise. It’s not always the soggy mess the stereotypes suggest.
Take today, Friday, January 16, 2026. We’re sitting at a crisp 51°F with pure sunshine. No rain in sight. In fact, the precipitation chance is a flat 0%. That’s a far cry from the "perpetual rain" reputation Oregon carries. The north wind is kicking at about 11 mph, which makes that 51°F feel more like 48°F. It's the kind of day where you definitely need a jacket, but the sun on your face feels like a legitimate gift in the middle of winter.
The Willamette Valley's Little Secret
Living here means understanding that Dallas isn't exactly like Portland or Salem, even if they’re just down the road. We’re tucked a bit closer to the Coast Range. That geography matters. It creates these little microclimates where we might see a clearing while the rest of the valley is still socked in with fog.
The humidity is sitting at 50% today. For January, that's remarkably dry. Usually, we’re swimming in moisture this time of year. But there's an Air Stagnation Advisory looming. It starts Saturday evening and runs through Tuesday morning. Basically, the air just stops moving. When that happens, the cold settles into the low spots and stays there.
If you’re planning your weekend, Saturday looks gorgeous but cold. We’re talking a high of 49°F and a low that dips down to 31°F. That’s freezing, literally. If you’ve got sensitive plants or left the hose attached to the spigot, this is your reminder to deal with that. Sunday stays in that same lane: sunny, 48°F high, and 32°F low.
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Why the Forecast Shifts So Fast
The dallas oregon weather forecast can be a fickle thing because of the Pacific Ocean. We’re constantly at the mercy of whatever the North Pacific decides to throw at the coast.
Right now, we’re seeing a run of "clear and cold."
It’s beautiful, sure.
But it’s also deceptive.
By the time we hit Tuesday, January 20, the clouds start reclaiming the sky. The high drops to 46°F, and we start seeing a 10% chance of snow. Yeah, snow. In the valley, "snow" usually means a few wet flakes that melt before they hit the ground, but it’s enough to make everyone at the Safeway panic-buy kale and toilet paper.
Beyond the 7-Day Outlook
If we look further out toward the end of next week, the pattern shifts again. Wednesday and Thursday (January 21-22) bring more clouds and a slight bump in humidity. We’re looking at highs around 45°F or 46°F. It’s that classic Oregon "cool and damp" feeling returning.
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By Sunday, January 25, the rain finally makes a real appearance. We’re expecting light rain with a high of 45°F and a low of 39°F. The humidity will spike to 90%. That’s when the moss on your roof starts looking extra happy. It's the standard winter cycle: clear and freezing, followed by gray and drizzly.
Real Talk on Gear
Since the dallas oregon weather forecast is showing a mix of sunny freezing days and upcoming dampness, your wardrobe needs to be modular.
Layering isn't just a suggestion; it's a survival strategy.
The UV index is low (around 1), so you won't get a tan, but the glare off a frosty windshield is no joke.
- Today (Friday): 54°F high, 36°F low. Sunny.
- Tomorrow (Saturday): 49°F high, 31°F low. Sunny but biting.
- Next Week: Clouds move in, temps stay mid-40s, rain returns by the 25th.
One thing that often gets missed in these reports is the wind direction. We’ve been seeing a lot of wind from the north lately. North winds in the winter usually mean "dry and cold." When the wind shifts and starts coming from the south or southwest—which we'll see toward the end of the month—that's when the "Pineapple Express" moisture kicks in.
What You Should Actually Do
Don't let the sun today fool you into thinking spring is early. That 30°F low on Monday night is going to be a wake-up call. If you’re a commuter heading toward Salem or McMinnville, watch out for patchy ice in the shaded areas of Highway 223. The sun doesn't hit those spots long enough to melt the overnight frost when the highs are only in the 40s.
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Keep an eye on that Air Stagnation Advisory. It might mean some hazy skies and lower air quality in the valley floor. If you have respiratory issues, maybe skip the long outdoor jog on Monday morning.
The best way to handle Dallas weather is to appreciate the sun while it's here because, by the time the last week of January rolls around, we’ll likely be back to our regularly scheduled programming of light rain and 47°F afternoons.
Next Steps for You: Check your exterior pipes before the Saturday night freeze and make sure your windshield wiper fluid is rated for sub-freezing temperatures.