Charleston Weather Blog

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

The next seven days: A chilly and wet Saturday gives way to increasingly warm days; next front Thursday

/ May 1, 2026 at 6:54 PM

We’re taking a look at the next seven days tonight as I’ll be taking a bit of a break over the next few days. A more regular posting schedule resumes Friday!

A rain-cooled day is on tap for Saturday — not quite peak air show weather, that’s for sure — as we may challenge a record cool high temperature. The coolest high temperature on record for May 2 is 63°, set in 1978; the NWS forecast for the airport currently calls for highs to reach about 64°. It’s gonna be close! As mentioned, some much needed rain will be falling throughout the day, with some rumbles of thunder possible with some elevated instability. No severe weather is anticipated, though. It’ll be generally on and off through late afternoon before tapering off in the evening. Many of us should see an additional inch to inch and a half of rain before it’s over — quite a nice sight given the ongoing severe drought.

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Friday & the weekend: Wet and cool start to May

/ April 30, 2026 at 11:38 PM

After completing what should go down as the second-driest April on record (only by virtue of measurable rainfall over the past two days), we will get May off to a more unsettled start with some much-needed rain followed by a cool but sunny Sunday. We will also need to keep an eye on tides for possible coastal flooding concerns into the weekend.

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Rest of the work week: An unsettled end to a dry April

/ April 28, 2026 at 7:07 PM

We will close a bone-dry April out with a couple more chances for showers and thunderstorms as another cold front approaches the area with disturbances riding along it. One such disturbance fell apart as it reached the Lowcountry today, giving us another trace of rain at the airport. Officially, though, rainfall totals for the month of April remain at 0.01”, which currently ties 1972 as the driest April on record. With any luck, though, we should not end up there, though a top-five driest April on record certainly appears to be in the cards.

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The week ahead: A few more rain chances, not quite as warm

/ April 26, 2026 at 11:57 PM

One of the driest Aprils on record will come to a somewhat unsettled end this week as the pattern starts to finally flip toward something a little more favorable for rain chances. We’ll run a little cooler, too, especially as we start May.

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