Honestly, Kennesaw weather is a bit of a trickster. You think you've got it figured out because you're in the South, and then January rolls around and hits you with a 27°F night that feels more like 19°F. That’s exactly what’s happening right now. It's cold. Really cold.
If you're looking at the weather forecast Kennesaw GA, you've probably noticed the upcoming week looks like a roller coaster. We’re starting with clear, sunny skies today, Monday, January 19, but don't let that bright sun fool you. The high is only hitting 44°F, and with a 12 mph northwest wind, it’s going to stay crisp. Tonight is going to be even more brutal, dropping down to a low of 24°F. Basically, if you haven’t dripped your faucets or checked on your outdoor plants yet, tonight is the night to do it.
The Mid-Week Shift
By Wednesday, things start getting weird. We jump up to a high of 52°F, which sounds great until you realize the humidity is climbing and the clouds are moving in. We’re looking at a 20% chance of rain by Wednesday night.
Thursday follows suit with another 52°F high, but the rain chances keep ticking up. It’s that classic Georgia winter dampness—not quite freezing, but just wet and gray enough to make you want to stay in bed.
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Snow in Kennesaw? What the Data Says
Here is the part everyone is talking about: the weekend. If you’ve been checking the long-range outlook, Saturday, January 24, and Sunday, January 25, are looking pretty wild.
We’re talking about a potential heavy snow storm.
On Saturday, there’s a 65% chance of snow during the day, jumping up to a massive 90% chance at night. The high will be 41°F, but it drops to 34°F. Sunday follows that up with a 75% chance of more snow and a high that barely scrapes 39°F.
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Now, if you’ve lived in Cobb County for more than five minutes, you know how this goes. One degree of difference determines whether we get a "Winter Wonderland" or just a cold, slushy mess that shuts down I-75 for no reason. But with these northeast winds hitting 13 to 16 mph, it’s going to be a blustery mess regardless.
Real Talk on Temperatures
People assume Georgia stays mild, but Kennesaw's proximity to the mountains means we catch those cold fronts faster than Atlanta does.
- Current Reality: 27°F current temp, feeling like 19°F.
- The Upcoming Lows: We are looking at a string of nights in the 20s (24°F tonight, 23°F tomorrow).
- The Late Week Freeze: After the snow event, next Wednesday, January 28, is forecasted to plunge to a low of 21°F.
How to Handle This Week
Don't just trust the "sunny" icons on your phone. The UV index is low (around 3), so you aren't getting any warmth from that sun.
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Layer up. Seriously. The wind is coming mostly from the northwest at speeds between 7 and 12 mph for the next few days, which makes the actual air temperature feel significantly lower than what the thermometer says.
By the time we hit Friday, the rain-to-snow transition begins. Friday has a 45% chance of rain during the day, turning into a 35% chance of snow at night as the temperature hits 38°F. That is the danger zone for black ice on local roads like Barrett Parkway or Highway 41.
Actionable Next Steps:
- Check your tire pressure: These 20-degree drops in temperature will trigger your "low air" light.
- Prep for Saturday: If the 90% snow chance holds for Saturday night, get your grocery run done by Thursday.
- Watch the wind: Northeast winds on Sunday will be gusty (16 mph); secure any loose patio furniture or decorations that might have survived the holidays.
- Pipe Safety: With lows hitting 21°F-24°F multiple times this week, keep those cabinets open under your sinks.
The weather forecast Kennesaw GA is rarely boring this time of year, and this week is proving to be a perfect example of why you should always keep a heavy coat and an ice scraper handy.