Charleston Weather Blog

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

Friday & the weekend: Fall-like temperatures incoming, but showers and storms hang around

/ September 5, 2024 at 11:11 PM

A reinforcing shot of cooler air will send temperatures well below normal this weekend, but first we have to get through some elevated rain chances for Friday that linger into Saturday. Friday starts in the low 70s, warming to the mid-80s in the afternoon. Low pressure developing along the front will strafe the area in the afternoon and evening hours, driving rain chances up across the area as it does so. Rain chances peak Friday evening into Saturday morning, though scattered storms will remain possible much of the day Saturday. A trough of low pressure hangs over the area on Sunday, and this keep the risk for a few showers and storms in the forecast especially in the afternoon.

Temperatures will dive even further below normal Saturday and Sunday. Expect highs to only reach about 80° on Saturday, while we may not even crack 80° on Sunday. If the high of 78° verifies, it’d be the coolest high temperature since May 18, when we also reached 78°! Fall will certainly be a bit more in the air, that’s for sure. Temperatures recover back into the low 80s as we get into next week, but remain well below early September normals.

Thursday: Staying breezy and on the cool side with a shower possible

/ September 4, 2024 at 7:15 PM

The wedge of high pressure that’s kept things breezy and cool but largely quiet hangs on for one more day Thursday. We’ll start the day in the low 70s, warming to the mid-80s in the afternoon under a mix of sun and clouds. Breezy conditions with gusts 20-25 MPH will continue to be possible as the pressure gradient stays pinched, and we’ll keep the risk of a shower or two primarily in the afternoon. The best chance for any rain will be closer to the coast, though much of us look to get the day in rain-free.

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Rest of the work week: A few more clouds, maybe a few showers

/ September 3, 2024 at 7:01 PM

Tuesday ended up being a rather nice day across the area as the low-level cloud cover that was originally anticipated didn’t quite materialize. Unfortunately, that reprieve may not last as the stationary front offshore buckles back toward the coast a bit more starting Wednesday. This should help spread some cloud cover back into the area, though the best shower and storm chances will reside closer to the coast. Northeasterly flow will keep temperatures well in check, with lows in the upper 60s Wednesday followed by low 70s Thursday into Friday. We’ll see highs continue to peak in the mid-80s, which remains a few degrees below normal for this point in the year.

Rain chances will tick up heading into Friday as a little more moisture works back into the area. We’ll see rain chances peak Saturday into Sunday before another front moves by for Monday, which should bring another round of cooler and drier air into the region for next week.

Rest of the work week: Cooler, cloudier, occasionally stormy

/ September 2, 2024 at 9:39 PM

A front will get through the area overnight into Tuesday morning, bringing with it a cooldown that will last for the rest of the week as high pressure wedges southward into the area. Lingering showers should end Tuesday morning, and we should get much of the rest of the day in without any additional measurable rainfall. Clouds will hang around, though, and this will be commonplace for much of the week with the nearby front and ongoing high pressure wedge.

Tuesday’s temperatures will be fairly representative of what we have in store for the rest of the week. Expect lows around 70°, with perhaps some 60s further inland. We’ll warm to the mid-80s in the afternoon, tempered by the northeasterly winds and cloud cover. Dewpoints on Tuesday will run just in the mid-60s, making it the driest-feeling day of the rest of the week as they’ll trend back up to the upper 60s on Wednesday and back to around 70-71° on Thursday and Friday as the stalled front buckles back northward. Shower chances with some rumbles of thunder head up starting Wednesday afternoon and get a little higher Thursday and Friday thanks to the aforementioned front and the return of more quality surface moisture. We’ll keep this going into the weekend, too, before another front sweeps through the area with a reinforcing shot of cooler and drier air to kick off next week.