Charleston Weather Blog

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

Tuesday: Chilly start, but a warming trend begins

/ October 23, 2023 at 9:51 PM

We get off to a fairly chilly start on Tuesday as lows bottom out in the upper 40s thanks to clear skies and light winds. This will be the low-water mark (so to speak) for temperatures, though, as we head into the rest of the week. Highs on Tuesday top out in the mid-70s once again, perhaps a degree or two warmer than we saw on Monday. All in all, another nice October day.

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The week ahead: High pressure in control; warm and sunny days to ensue

/ October 22, 2023 at 4:39 PM

The story of this week’s weather will be high pressure keeping a firm grasp on the area for the rest of the week (and maybe even the rest of October). This will lead to generally quiet weather, with a warming trend bringing us into the low 80s starting around midweek. Monday will be the coolest of the set in the wake of a dry cold frontal passage; we start the day around 50° and warm into the low 70s in the afternoon with just a few clouds. Tuesday starts a touch cooler, but the warming trend will begin with temperatures reaching a little warmer in the afternoon. A decent stretch of above-normal warmth takes hold from there, with variable cloud cover but little else to write home about as moisture is generally scant. All in all, it’s not a bad week to get the car washed (note to self) and enjoy some outdoor lunches.

The only concern may end up being coastal flooding at times of high tide possibly starting as early as Tuesday. Winds will be out of the northeast as high pressure settles in to our northwest, and this combined with the upcoming full moon will once again start to send water levels above coastal flood criteria as we head into the latter half of the week. Keep an ear out for Coastal Flood Advisories from the National Weather Service.

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Weekend forecast: Pretty fantastic

/ at 9:13 PM

After an occasionally stormy Friday, we have a great looking weekend of weather ahead. Skies clear out overnight Friday in the wake of the front, and by Saturday morning, we’re waking up to brilliant sunshine and temperatures in the low 50s. It’ll be a predominantly sunny day with temperatures topping out in the low-to-mid-70s.

Sunday turns a little warmer, but it’ll remain rather comfortable. Lows in the upper 50s give way to highs in the mid-to-upper 70s in the afternoon with a few clouds at times and a gentle northwesterly breeze. A reinforcing front makes a dry passage late Sunday evening, and this will cool temperatures back down for Monday. Peeking ahead into the forecastable future, there’s very little sign of much in the way of rain as we get into the home stretch of October. This isn’t too abnormal as October is climatologically a fairly dry month here in the Lowcountry, but we are almost an inch off pace still for the month.

Friday & the weekend: Stormy close to the work week, then beauty

/ October 19, 2023 at 10:33 PM

Showers and a few thunderstorms re-enter the weather picture for Friday as a cold front moves by, but it’ll be worth it as we have a gorgeous weekend ahead.

We start Friday in the mid-50s with dewpoints steadily rising throughout the day. Showers and thunderstorms will approach the area from the west as the day goes on, with storms possible perhaps as early as 1-2 PM, but most likely in the late afternoon to early evening hours. A storm or two could even be on the strong side, with damaging wind gusts the main concern. Rainfall between a quarter and half-inch is generally expected, with some spots under- and over-performing as is common with these kinds of convective setups. Due to the ongoing dry conditions, though, flooding is not expected to be an issue.

From there, the weekend looks great. Skies clear nicely for Saturday, and northwesterly flow will yield a rather beautiful day with lows in the mid-50s yielding to highs in the mid-70s in the afternoon with nary a cloud to be found. Sunday will be another really nice day with temperatures generally similar to Saturday’s, though we’ll see a bit more in the way of scattered clouds ahead of a dry frontal passage late. All in all, it looks to be a fantastic weekend to get out and do stuff.

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