You’ve probably heard the jokes about the Gulf Coast. If you don't like the weather, just wait five minutes. Honestly, it’s a bit of a cliché, but today, Sunday, January 18, 2026, Biloxi is actually playing it pretty straight. No surprises. No wild swings. Just a crisp, clear January day that reminds you why winter on the Coast is a total hidden gem.
If you’re standing out on Highway 90 right now, you’re feeling a bit of a bite.
Current Conditions and Today’s Outlook
Right now, the mercury is sitting at 44°F. It’s nighttime, and the sky is draped in clouds. But here’s the kicker: that north wind is whipping in at 16 mph. It makes the air feel more like 37°F. If you’re heading out for an early breakfast or a walk by the Lighthouse, you're definitely going to want that heavy sweater or a light puffer jacket. Humidity is hanging out at 58%, which is actually quite low for us.
As the sun comes up today, things look up. We’re looking at a high of 49°F under mostly sunny skies. It’s not "beach weather," but it’s spectacular for anything else.
The wind will shift slightly, coming from the northwest at about 10 mph. That’s enough to keep the Gulf a bit choppy, but nothing like the mess we had yesterday. Most importantly? The chance of rain is 0%. You can leave the umbrella in the trunk. Tonight, the temperature is going to bottom out at 32°F. Yeah, a light freeze is on the table, so maybe pull those sensitive porch plants inside if you haven't already.
The Marine Perspective
For the boaters and the "I-fish-no-matter-what" crowd, Sunday is a transition day. We’ve had a Small Craft Advisory in effect because of a cold front pushing through. Those north winds were gusting up to 25 knots overnight with 4-foot waves in the Sound.
By this afternoon, those winds will drop to 5–10 knots. The water will go from "rough" to a "moderate chop." If you’re hitting the Biloxi Marsh for Bull Reds, the morning might be bumpy, but the afternoon should settle down nicely.
The Week Ahead in Biloxi
Looking at the broader weather forecast for Biloxi, we’re in a classic winter pattern. Monday stays cool with a mix of sun and clouds, but then things start to mellow out. By Tuesday, we should see the mid-60s again.
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January in Biloxi usually averages around 60°F for a high, so today's 49°F is a bit of a cold snap. We’re roughly 11 degrees below the typical average. Historically, the coldest day of the year here is actually yesterday or today (January 17-18), so once we get past tonight’s 32°F low, we’re technically on the upswing toward spring.
What to Pack or Wear
- Layering is everything. You need a wind-resistant outer shell for the morning and a breathable layer for the afternoon sun.
- Skin care matters. Even with a UV index of 4 today, the wind-chill at 37°F can dry your face out faster than a summer heatwave.
- Boating gear. If you're on the water, high-vis gear and a life jacket are non-negotiable with the lingering chop from that north wind.
Basically, enjoy the clarity. The air is crisp, the humidity is low, and the casinos look great against a sharp blue sky. Just don't let the sun fool you into leaving your coat at home.
Next Steps for Your Day:
Check your outdoor pipes and plants tonight, as that 32°F low is the real deal. If you're planning a boat trip, wait until after 1:00 PM when the northwest winds settle below 10 mph for a much smoother ride.