Arkansas weather is a bit of a trickster. Honestly, if you've lived in Greenwood for more than a week, you know the drill: keep a heavy coat and a light windbreaker in your backseat at all times because the sky can’t quite decide what mood it’s in.
Today, Sunday, January 18, 2026, we’re looking at a classic "sunny but sharp" winter day. The high temperature is hitting 47°F, which sounds decent enough for a walk around Bell Park until you realize the low tonight is dipping down to a biting 13°F. That’s a massive swing. It’s the kind of day where you’re peeling off layers by lunch and shivering by dinner.
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The humidity is sitting at 51%, and with a 5 mph breeze coming out of the south, it doesn’t feel particularly "wet," but that 25°F wind chill—the "feels like" factor—is definitely enough to make you regret leaving your gloves at home.
The Greenwood AR Weather Forecast Reality Check
People often assume Arkansas winters are just "mild." That’s a misconception that’ll get your pipes frozen. While we don't usually deal with feet of snow, we deal with the "frozen mix" mess. Looking ahead at the 10-day stretch for Greenwood, things stay pretty clear for a while.
Monday is going to be a bit of a reality check with a high of only 35°F. If you’re planning on getting anything done outdoors, Tuesday and Wednesday are your best bets, with highs bouncing back up into the low 50s.
But keep an eye on next weekend, January 24th and 25th. We’ve got a 30% chance of rain followed by a 30% chance of a frozen mix. In Sebastian County, "frozen mix" is basically code for "stay off the bypass if you can help it."
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Why Our Mid-Winter Shifts Matter
Greenwood sits in that weird sweet spot where the warm, moist air from the Gulf of Mexico decides to have a fistfight with the cold, dry air coming over the Rockies. Climatologists like Wladimir Köppen technically classify us as "humid sub-tropical," but tell that to someone scraping ice off their windshield at 6:00 AM.
Basically, the 2026 winter season is trending warmer than normal overall, but we are currently in one of those "coldest periods" the Old Farmer’s Almanac predicted for late January.
It’s easy to get complacent when you see a 56°F day on the horizon (like next Friday!), but the volatility is the real story. We aren't seeing much precipitation right now—0% chance of snow today—but the dry air actually makes the cold feel more piercing. It’s a "dry cold," which isn't a phrase you hear often in Arkansas, but it’s what we’ve got this week.
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Practical Steps for the Next 48 Hours
Don't let the sunny sky fool you into thinking the 13°F low tonight is a suggestion.
- Drip those faucets: When it hits the low teens, even "new" houses in the newer Greenwood subdivisions can have issues with outer-wall pipes.
- Check the pets: If they’re outside, they need a break from that 13°F floor.
- Layering strategy: Morning commute is a heavy coat situation. By the time you’re heading to lunch, you’ll likely want to swap it for a sweater.
- Hydrate your plants: Believe it or not, dry winter winds are brutal on evergreens. Give them a quick drink before the ground hardens tonight.
By mid-week, the "warm" side of the Greenwood AR weather forecast returns, but for now, keep the heater humming and your winter gear handy.