If you’ve spent any time in Middle Georgia, you know the vibe. One minute you’re sipping sweet tea in a light jacket on the square in Thomaston, and the next you’re digging through the hall closet for that heavy wool coat you swore you wouldn’t need this year. Honestly, the thomaston ga weather forecast is a fickle beast, especially when January decides to throw a temper tantrum.
Right now, we are looking at a classic Georgia "sandwich" of weather. Today, Saturday, January 17, 2026, it is basically a gray, soggy mess. The temperature is sitting at exactly 53°F with a heavy 76% humidity that makes the air feel thicker than it actually is. It’s mostly cloudy, and the wind is coming out of the west at 8 mph. If you’re heading out to Grab-a-Go or hitting the Piggly Wiggly, keep the umbrella in the front seat.
The Snowy Surprise Hiding in the Forecast
Here is where things get weird. People think Middle Georgia is immune to the white stuff. We aren't. While today’s high is 55°F, things are going to take a sharp, icy turn tonight. The National Weather Service in Peachtree City has already issued a Winter Weather Advisory for Upson County starting at 3:00 AM Sunday.
We are looking at a 95% chance of rain today, but as the sun goes down and the mercury drops to 35°F, that rain is expected to mix with—and potentially turn into—snow showers.
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- Tonight's Low: 35°F
- The Switch: Rain transitions to a 35% chance of snow after midnight.
- The Wind: Southwesterly at 9 mph, shifting as the cold front pushes through.
Don't go buying out all the milk and bread just yet, though. Accumulations are expected to be light, maybe a trace to half an inch in some spots, but it’s enough to turn the roads into a skating rink by tomorrow morning.
Why Sunday Is the Real Game Changer
Tomorrow, Sunday, January 18, is going to be a shock to the system. Forget that 50-degree comfort. The high is only going to hit 42°F. It’ll be sunny, sure, but that northwest wind is going to be kicking at 11 mph. When you factor in the low of 27°F for Sunday night, you’re looking at a hard freeze that’ll bite if you aren't prepared.
This is the kind of thomaston ga weather forecast that catches people off guard. You see the sun through the window and think it’s a nice day for a walk at Greatest Generation Park, but the wind chill will tell you otherwise.
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The humidity is also going to crater, dropping from 77% today to around 47% tomorrow. It’s going to feel crisp. Dry. Bone-chillingly cold for those of us used to the Georgia heat.
Looking Ahead: The 10-Day Outlook
If you can survive the freeze this weekend, the rest of the week looks... actually pretty decent? Monday, which is Martin Luther King Jr. Day, will be sunny with a high of 49°F. It’s perfect for local events, provided you’ve got a good scarf.
Mid-Week Trends
By Wednesday, January 21, we start to see a bit of a warmup. Highs will climb back into the mid-50s, specifically 54°F, though the lows will stay stubborn at around 26°F. It’s that classic "four seasons in one week" scenario we love to complain about at the coffee shop.
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Interestingly, as we head into next weekend (January 24-25), the rain returns. Saturday the 24th looks mostly cloudy with a high of 61°F—downright balmy compared to this Sunday! But don't get too comfortable. Sunday the 25th brings light rain and a humidity spike back up to 85%.
The Big Storm Potential
Keep your eyes on Monday, January 26. The forecast is currently calling for a transition from light rain during the day (high of 51°F) into a heavy snow storm Monday night. The chance of precipitation jumps to 65% with a low of 32°F. In Georgia terms, that is a "stay home and binge-watch Netflix" kind of alert.
Actionable Steps for Thomaston Residents
Since the thomaston ga weather forecast is calling for freezing temps and potential snow/ice over the next 24 hours, here is what you actually need to do:
- Drip those faucets. When it hits 27°F on Sunday night, your pipes are at risk, especially in older homes around the downtown area.
- Check the outdoor pets. Bring 'em in. If they have to stay out, make sure their bedding is dry and they have unfrozen water.
- Watch the bridges. Highway 19 and Highway 36 have spots that hold moisture. If that rain turns to snow or freezes tonight, those overpasses will be treacherous by dawn Sunday.
- Cover the plants. If you were over-eager with your winter gardening, get the frost blankets out now.
Basically, enjoy the cozy cloudy vibes today, but get ready to hunker down. Georgia winters are short, but they sure do know how to make an entrance.
Stay warm, stay dry, and keep a close eye on the sky—or at least your weather app—before you head out this weekend.