Charleston Weather Blog

Forecast explanations, atmospheric science, and other cool weather-related stuff for Charleston, SC

Thursday: A touch cooler, but still a nice late-January day

/ January 29, 2025 at 9:34 PM

After the warmest day of 2025 so far, in which we reached 72° at the airport and 70° downtown, a dry cold front knocks our temperatures down a few degrees for Thursday, but it’ll still feel quite good outside. Expect mostly sunny skies to help low temperatures in the low-to-mid-40s warm to the mid-60s in the afternoon. An easterly wind at 10 MPH will keep things a touch on the breezy side, but otherwise, no concerns for Thursday.

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Rest of the work week: Warmer-than-normal temperatures prevail

/ January 28, 2025 at 9:05 PM

Warmer-than-normal temperatures will be the headline for the rest of the work week as high pressure ridges in a bit aloft. We’re still on track to see our first 70°+ reading of 2025 on Friday, too.

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Tuesday: Sunny & warmer; 70s by the end of the week

/ January 27, 2025 at 11:05 PM

Tuesday will feel a lot better than Monday did as a front swings through with mostly a drier airmass, but not nearly as cold as the one we dealt with last week. We start the day in the upper 30s and warm to around 60° in the afternoon under mostly sunny skies. The black ice threat has ended, especially after Monday’s rain melted much of the rest of the snowpack and any lingering ice patches. If you have some snow left, it won’t be much longer, especially as we get into a warming trend this week.

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The week ahead: After a taste of winter weather, spring-like conditions close January

/ January 26, 2025 at 10:48 PM

January will end much differently than how it has gone thus far as temperatures head around and even above normal to close out the month and bring in February with just a few rain chances mixed in to start and end the week.

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Weekend forecast: End of black ice in sight

/ January 24, 2025 at 10:22 PM

Snowmelt will accelerate this weekend with warmer temperatures and more sunshine each afternoon. We will still deal with freezing temperatures each morning, though, which brings the specter of black ice back to the forecast for a couple more days. Saturday morning looks particularly frigid, with clear skies, calm winds, and existing snowpack contributing to temperatures falling into the low 20s. Winds go southwesterly during the day Saturday, though, and temperatures will head to around 50° in the afternoon. With mostly sunny skies expected, we should get another solid day of melting.

Whatever’s left of the snowpack on Saturday probably won’t make it too far past Sunday. We start Sunday in the upper 20s, but once we head above freezing on Sunday morning, we’ll stay above for the foreseeable future. Temperatures will head to the mid-50s in the afternoon with a few more clouds in the mix. Despite a few more clouds, melting will continue apace. And with lows not expected to get below freezing overnight Sunday into Monday morning, the risk for black ice will come to an end.

The warming trend continues next week, especially starting Tuesday as highs return to the 60s for a few days for mid-week — a far cry from where we’ve been, that’s for sure!

Friday & the weekend: Slow warming trend as snowpack continues to melt

/ January 23, 2025 at 9:11 PM

Snowpack is heading into its third day here in the Lowcountry, with many roads still a little on the sketchy side and black ice being a concern once again overnight Thursday into Friday morning. It’s kept us on the chilly side, too: the high today hit 40° at the airport, while the high of 38° at downtown Charleston was a record cold high temperature for January 23. We’re already back into the 20s as of this writing (8:45 PM-ish) with temperatures expected to fall into the low 20s given much less cloud cover than last night and the continued snowpack. Winds a little more out of the west should kick in on Friday, though, and we should see highs peak in the mid-40s along with more sunshine than we saw Thursday. Still, melting during the day Friday should once again contribute to a black ice threat overnight into Saturday morning, so keep that in mind if you head out.

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