Charleston Weather Blog

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

Rest of the work week: One more front, then much more sun

/ October 28, 2025 at 7:29 PM

After the coolest day since late February — the high at the airport only peaked around 57° — we’ll turn warmer on Wednesday as an approaching cold front scours out the wedge of high pressure that brought us a dreary, drizzly Tuesday. We’ll start Hump Day around 50° under mostly cloudy skies once again. A warm front lifting northward will push through the area later in the afternoon, and it’s that warm front along with some breaks in the cloud cover which will help us warm to the mid-to-upper 60s later in the day. Shower chances will return in the evening through the overnight as a band of rain ahead of the cold front moves by.

Showers should depart by the time most of us get Thursday underway. We’ll start in the upper 40s to around 50° once again, warming to the mid-60s in the afternoon with much more in the way of sunshine than we’ve seen so far this week. Clearer skies overnight Thursday will allow Halloween to start a little cooler, generally in the mid-40s in the metro (with lower temperatures possible further inland as well as in some more rural areas). Unfettered sunshine will send temperatures in the mid-to-upper 60s in the afternoon. Trick-or-treaters and their accompanying guardians (where applicable) should expect temperatures to fall into the 50s around and after sunset.

Read more »

Tuesday: Overcast and a few showers persist

/ October 27, 2025 at 11:16 PM

More overcast is in store for Tuesday despite low pressure departing the area. The overcast combined with gusty northerly winds and a few lingering showers will keep us on the cool side in the afternoon, with highs only peaking in the low 60s after a start to the day in the mid-50s. Showers should taper off by evening, with a rain-free period expected until Wednesday afternoon.

Read more »

The week ahead: Stormy start, but quieter for Halloween; staying cool throughout

/ October 26, 2025 at 11:01 PM

The final week of October will feature cooler-than-normal temperatures as well as periods of unsettled weather as a couple storm systems affect the area ahead of what should be a quiet Halloween weekend.

Read more »

Weekend forecast: Generally nice, but changes are on the way

/ October 24, 2025 at 7:01 PM

Generally speaking, we can expect good weather this weekend (especially on Saturday) with a wedge of high pressure building southward through the Carolinas into Georgia. This will lead to breezier conditions for the weekend as northeasterly winds kick up, and temperatures will run a couple clicks lower with cooler air moving in at the surface. Moisture will also start to overrun the wedge, and that will bring a gradual increase in dewpoints and cloud cover as low pressure develops in the Gulf. This low pressure system may bring us some showers later Sunday, and look to make for a soggy Monday.

Saturday’s lows will once again begin in the upper 40s (with some mid-40s inland), warming to the low 70s in the afternoon under partly cloudy skies. Cloud cover will continue to thicken on Sunday as moisture return continues; this will lead to a warmer start in the mid-50s before highs peak around 70-71° once again under mostly cloudy skies. Showers and maybe even some rumbles of thunder will be possible beginning Sunday evening, so keep that in mind as you make your weekend plans.

Read more »

Friday & the weekend: Seasonable conditions continue

/ October 23, 2025 at 6:46 PM

Expect generally quiet weather and seasonably cool temperatures to continue for Friday and the weekend. Dry high pressure remains in control for Friday with temperatures cooling to the upper 40s by morning, warming to the low-to-mid-70s in the afternoon with just a few clouds. High pressure then begins to wedge into the area over the weekend, bringing with it slightly cooler temperatures for Saturday. Moisture return ahead of the next storm system starts to kick in on Sunday, with dewpoints rising throughout the day contributing to a bit more in the way of cloud cover ahead of what looks to be an unsettled first half of the work week next week as low pressure heads up the coast.

Read more »

Tuesday: Another picture-perfect day

/ October 20, 2025 at 6:36 PM

No complaints in the weather department for Tuesday as high pressure remains the main weather driver with deep-layer dry air in place across the region. Temperatures start on the cool side once again, with lows bottoming out in the low 50s (with perhaps a few readings in the upper 40s in more rural and sheltered areas). We’ll warm to the mid-to-upper 70s under predominantly sunny skies in advance of a dry front that comes through early Wednesday morning.

Read more »

The week ahead: Quiet and seasonable weather continues

/ October 19, 2025 at 10:49 PM

Another generally quiet week of weather lies ahead as high pressure remains the primary weather driver across the Southeast with a reinforcing shot of cooler air for the second half of the week.

Read more »

Friday & the weekend: Comfortable and quiet while trending warmer

/ October 16, 2025 at 5:33 PM

High pressure remains the main weather player in our neck of the woods, keeping things generally quiet and seasonable for Friday and the weekend. You may need a light hoodie or somesuch Friday morning as lows bottom out to the low 50s in the metro and perhaps into the 40s further inland and in more rural locations. Highs Friday peak in the low 70s with plenty of sunshine expected.

High pressure starts to move a bit more overhead Saturday and then starts to slip offshore on Sunday. This will lead to gradually warming temperatures through the weekend; mid-70s Saturday while we should touch 80° on Sunday. Generally speaking, mostly sunny skies will prevail, though there could be an uptick in cloud cover later Sunday as a front approaches. A stray shower will be possible overnight Sunday into early Monday morning, but otherwise, we look to stay dry well into next week.