Charleston Weather Blog

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

Friday & the weekend: Unsettled start to March

/ February 29, 2024 at 10:35 PM

We’ll get March — and climatological spring — off to a fairly wet start on Friday as moisture overruns the area throughout the day. We start the day within range of normal — generally the upper 40s — but only warm to the mid-60s in the afternoon as rain showers increase throughout the day. There could be some pockets of heavy rain at times, particularly depending on the positioning of a developing low pressure system, but right now the risk for the heaviest rain looks to stay offshore. Still, it’ll be a day for the rain gear as rain looks to continue well into Friday night.

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Thursday turns much cooler ahead of an unsettled weekend

/ February 28, 2024 at 10:23 PM

We’ll wake up to much cooler air on Leap Day as a cold front will be long-gone by Thursday morning. Temperatures will start in the mid-40s, warming only to the low 60s at best as high pressure wedges into the area. We’ll get some peeks of sun at times, but the mid-and-high cloud deck will prove formidable. It’ll be a breezy day as well, especially in the early going. By evening, we will start to see more in the way of low-level moisture return to the area, which could bring a few showers late Thursday.

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Rest of the work week: A warm Wednesday, then temperatures crash

/ February 27, 2024 at 10:44 PM

Unseasonable warmth continues for one more day before it is blunted by a sharp cold front that will bring a few late showers Wednesday followed by much cooler weather on Thursday.

First, though, we start Wednesday with low temperatures approaching 60°, warming to the upper 70s to maybe even 80° in the afternoon ahead of the aforementioned front. It’ll be breezy, too, as the pressure gradient tightens ahead of the front. We should stay rain-free through the daylight hours; from there, a thin line of showers, which has been depicted on models for the past several days, should move by and produce a little rain, but nothing too impactful.

The impacts from the front will come in the form of a sharp cooldown for Leap Day. We start Thursday in the mid-40s, only warming to the low 60s in the afternoon with more clouds than not and breezy northeasterly winds. Winds will slacken a little bit Thursday night into early Friday, though low pressure developing offshore as high pressure wedges southwestward into the area should help to tighten the gradient a bit more as we go through Friday. Shower chances increase throughout the day Friday as moisture overruns the wedge and the aforementioned low pressure develops, with rain chances peaking Friday night into Saturday morning. Temperatures are currently forecast in the mid-60s, but downward revisions to that forecast certainly seem possible as we learn more about the strength of the wedge.

Tuesday: Turning even warmer

/ February 26, 2024 at 7:40 PM

We turn even warmer on Tuesday as high pressure moves further offshore and more warmer air is drawn northward. Temperatures start several degrees above normal, generally in the low 50s (and even warmer closer to the coast). From there, we’ll head well into the mid-70s in the afternoon despite an uptick in cloud cover compared to Monday as a disturbance moves by to the north. We’ll stay out of the rain, though. Winds will run a little on the breezy side as well, but nothing too crazy.

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The week ahead: A warm close to February and an unsettled start to March

/ February 25, 2024 at 4:59 PM

Sunday’s chill yields to a much warmer few days to start the new week and close out February. After a chilly start in the upper 30s, temperatures on Monday will rise into the low 70s, several degrees warmer than we reached on Sunday, thanks to plenty of sunshine and winds starting to go southerly as surface high pressure moves offshore. The warming trend continues for Tuesday and Wednesday, with lows in the low 50s on Tuesday yielding to highs in the mid-70s in the afternoon. Wednesday will start well above normal — think upper 50s — before temperatures make a run at 80° in the afternoon despite a mix of sun and clouds.

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