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 Charleston Weather Forecast Summary |
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Today
May 18th
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Tuesday
May 19th
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Wednesday
May 20th
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Thursday
May 21st
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Friday
May 22nd
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Thundershowers |
Thundershowers |
Showers |
Showers |
Thundershowers |
83°F
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84°F
68°F |
70°F
62°F |
64°F
61°F |
76°F
61°F |
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| Charleston Detailed Weather Forecast |
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| Monday, May 18th, 2026 |
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Afternoon |
Temperature: 82°F |
| A mix of cloud and sun with a chance of showers or thundershowers. Windy. |
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Evening |
Temperature: 68°F |
| A mix of cloudy and clear skies with a few showers. Slight chance of a thunderstorm. Windy at times. |
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| Tuesday, May 19th, 2026 |
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Overnight |
Temperature: 69°F |
| Mostly clear with a chance of showers. Windy at times. |
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Morning |
Temperature: 75°F |
| A mix of sun and cloud. Chance of a thunderstorm. Windy at times. |
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Afternoon |
Temperature: 84°F |
| Sunny with cloudy periods with a chance of showers or thundershowers. Windy at times. |
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Evening |
Temperature: 74°F |
| A mix of cloudy and clear skies with a few showers. Chance of a thunderstorm. |
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| Wednesday, May 20th, 2026 |
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Overnight |
Temperature: 67°F |
| Cloudy with a few showers. |
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Morning |
Temperature: 66°F |
| Cloudy with sunny periods with showers likely. Windy at times. |
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Afternoon |
Temperature: 69°F |
| Mostly cloudy with a slight chance of showers. |
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Evening |
Temperature: 64°F |
| Cloudy with a slight chance of showers. Windy at times. |
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| Thursday, May 21st, 2026 |
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Overnight |
Temperature: 62°F |
| Cloudy with a chance of showers. |
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Morning |
Temperature: 62°F |
| Cloudy with a chance of showers. |
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Afternoon |
Temperature: 63°F |
| Cloudy with sunny periods with showers likely. Windy at times. |
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Evening |
Temperature: 61°F |
| Cloudy with clear periods with a chance of showers. Windy at times. |
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| Friday, May 22nd, 2026 |
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Overnight |
Temperature: 62°F |
| Cloudy with a few showers. |
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Morning |
Temperature: 68°F |
| Cloudy with a few showers. Slight chance of a thunderstorm. Windy at times. |
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Afternoon |
Temperature: 75°F |
| Mostly cloudy with a chance of showers or thundershowers. Windy at times. |
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Evening |
Temperature: 72°F |
| A mix of cloudy and clear skies with a chance of showers or thundershowers. |
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| Saturday, May 23rd, 2026 |
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Overnight |
Temperature: 68°F |
| A mix of cloudy and clear skies with a chance of showers. Slight chance of a thunderstorm. |
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Morning |
Temperature: 68°F |
| Mostly cloudy with showers likely. |
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Afternoon |
Temperature: 78°F |
| Mostly sunny. Chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 72°F |
| Mostly clear. Chance of a thunderstorm. |
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| Sunday, May 24th, 2026 |
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Overnight |
Temperature: 67°F |
| Clear with cloudy periods. |
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Morning |
Temperature: 71°F |
| A mix of cloud and sun. Chance of a thunderstorm. |
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Afternoon |
Temperature: 72°F |
| Mostly cloudy with a chance of showers. Slight chance of a thunderstorm. |
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Evening |
Temperature: 70°F |
| A mix of cloudy and clear skies with a slight chance of showers. |
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| Monday, May 25th, 2026 |
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Overnight |
Temperature: 68°F |
| Cloudy with a chance of showers. |
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Morning |
Temperature: 69°F |
| Cloudy with a chance of showers. Slight chance of a thunderstorm. Windy at times. |
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Afternoon |
Temperature: 76°F |
| Mostly cloudy with a chance of showers or thundershowers. Windy at times. |
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Evening |
Temperature: 72°F |
| Mostly cloudy with showers likely. Chance of a thunderstorm. |
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| Tuesday, May 26th, 2026 |
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Overnight |
Temperature: 69°F |
| Clear with cloudy periods with a chance of showers. Slight chance of a thunderstorm. Windy at times. |
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Morning |
Temperature: 74°F |
| Sunny with a chance of showers or thundershowers. Windy at times. |
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Afternoon |
Temperature: 82°F |
| Sunny with showers likely. Chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 78°F |
| Mostly clear with a chance of showers or thundershowers. Windy at times. |
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