So, you’re thinking about heading down to Ego Alley or maybe just trying to figure out if you’ll need the heavy parka for the walk to the State House this week. Honestly, Annapolis in January is a bit of a mood. One minute you’re looking at a crisp, sunny sky reflecting off the Severn, and the next, a "Clipper" is sliding in from the west to remind you that winter is very much alive.
Right now, as of Tuesday night, January 13, 2026, the Annapolis 10 day forecast is looking like a classic Mid-Atlantic rollercoaster. We’ve got a current temperature of 44°F, but with that south wind kicking at 12 mph, it actually feels closer to 37°F. It’s cloudy, kinda damp, and there’s a small 10% chance of rain lingering through the night.
The Immediate Outlook: Clouds and a Cold Snap
If you were hoping for a warm-up, I've got some bad news. Wednesday, January 14, is probably your last "mild" day for a while with a high of 48°F. After that? The bottom basically falls out.
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Thursday is going to be a shock to the system. We’re looking at a high of only 31°F and a low that drops down to 20°F. You’ve gotta remember that Annapolis sits right on the water, and when those temps hit the 20s, the humidity off the Chesapeake makes that cold feel like it’s biting right through your coat.
Here is the quick breakdown of what the next several days look like:
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- Friday, Jan 16: Mostly sunny but cold. High 34°F, Low 29°F.
- Saturday, Jan 17: A slight "rebound" to 42°F, which will feel like a heatwave compared to Thursday.
- Sunday, Jan 18: Back into the freezer. High 31°F, Low 17°F.
Basically, if you have outdoor plans this weekend, Sunday is the day you stay inside with a bowl of cream of crab soup. That 17°F low on Sunday night is the coldest mark in the current 10-day stretch.
Why the Chesapeake Bay Changes Everything
Most people check a generic app and think they know the weather, but Annapolis is weird because of the Bay. In the summer, the water keeps us cooler. In the winter? It usually keeps us just a tiny bit warmer than places like Bowie or Frederick, but it also means we get more "nuisance" weather.
Think about it. The sea temperature right now is hovering around 3°C (about 37°F). When cold air moves over that relatively "warmer" water, it can create localized fog or even weird snow squalls that don't show up on the big regional maps.
Governor Moore actually put out a reminder recently about being vigilant with these coastal systems. Even if the Annapolis 10 day forecast doesn't show a massive blizzard, these January coastal lows can bring high winds and tidal flooding. If you’re parked down by the City Dock during a high tide with a south wind, you might end up with the Severn River in your floorboards.
Is it Still "Boating Weather"?
Depends on who you ask. The hardcore sailors will tell you there’s no such thing as bad weather, just bad gear. But for the rest of us? Most of the tour boats like the Harbor Queen are tucked away or running limited climate-controlled schedules.
That said, the Watermark water taxis are still a thing, and honestly, seeing the Naval Academy from the water when there's a light dusting of frost is pretty incredible. Just don't be the person who goes out on a kayak without a dry suit this time of year. The water is cold enough to cause hypothermia in minutes.
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Practical Steps for the Next 10 Days
- Watch the Tides: If the forecast mentions south winds over 15 mph, avoid parking in the lowest spots of downtown.
- Layer Up for Humidity: A 30-degree day in Annapolis feels colder than a 30-degree day in Denver. Wear a windbreaker over your fleece to block the damp Bay breeze.
- Check the Wind: Monday, Jan 19, and Tuesday, Jan 20, are staying cold with highs of 29°F. If the wind picks up, the wind chill will likely stay in the low teens all day.
- Plan Indoor Backups: If you're visiting, the Maryland State House is free and heated. It’s a great way to kill an hour when the wind starts whipping off the harbor.
The rest of the month looks like it'll stay chilly, with temperatures predicted to be about 2 degrees below the historical average. Keep the salt handy for your sidewalk and maybe keep an extra blanket in the car—January in Naptown isn't messing around this year.