Mount Pleasant, SC Weather Tomorrow

Prepare for the week ahead with tomorrow's Mount Pleasant weather forecast and a complete 5 day outlook covering precipitation probability, daily and nightly weather conditions, high and low temperature trends, sunrise and sunset information, sky cover, wind speed, wind direction, and wind chill throughout the Mount Pleasant area and around Charleston county, South Carolina.
Updated: Wed Sep 30th 2026 4:00 PM EDT
Mount Pleasant, SC Weather – 9-30 – Sunny
79° / 76°
Sunny
In Mount Pleasant, bright and sunny conditions with highs near 79°F and lows around 76°F. There's a moderate 49% chance of rainfall with an estimated 0.04in. Wind will be moderate, blowing around 13mph on average and gusts of 13.2mph at 8 PM. The humidity will be on the higher side, averaging about 77%, the maximum being 81% at 10 PM and 74% being its lowest at 6 PM. Barometric pressure is its highest of 30.09inHg at 10 PM, a lowest point of 30.04inHg at 5 PM with an avg 30.07inHg.
Mount Pleasant, SC Weather – 10-1 – Sunny
80° / 78°

Weather Tomorrow

Sunny
Daytime highs will reach 80°F with lows dropping to 78°F in Mount Pleasant, where it will be sunny. Rainfall predicted to have a 57% chance with an estimated 0.04in. Winds will be light at 10mph and gusts of 11.6mph at 8 PM. High humidity with average of 81% is anticipated, the maximum being 85% at 10 PM and 78% being its lowest at 5 PM. Barometric pressure is its highest of 30.13inHg at 11 AM, a lowest point of 30.05inHg at 5 AM with an avg 30.08inHg.
Mount Pleasant, SC Weather – 10-2 – Sunny
80° / 77°
Sunny
It will be sunny in Mount Pleasant, with a high of 80°F and a low of 77°F. There might be light rainfall having a 14% chance with an estimated 0in. Wind will be moderate, blowing around 11mph on average and gusts of 16.8mph at 2 PM. High humidity with average of 82% is anticipated, the maximum being 87% at 6 AM and 74% being its lowest at 5 PM. Barometric pressure is its highest of 30.13inHg at 11 AM, a lowest point of 30.04inHg at 5 PM with an avg 30.08inHg.
Mount Pleasant, SC Weather – 10-3 – Scattered Showers
79° / 74°
Scattered Showers
Daytime highs will reach 79°F with lows dropping to 74°F in Mount Pleasant, where showers likely at times. The chance of rain is 78% with an estimated 0.1in. Wind will be moderate, blowing around 16mph on average and gusts of 25.5mph at 6 PM. High humidity with average of 82% is anticipated, the maximum being 86% at 1 PM and 73% being its lowest at 9 PM. Barometric pressure is its highest of 30.13inHg at 12 PM, a lowest point of 30.05inHg at 5 AM with an avg 30.09inHg.
Mount Pleasant, SC Weather – 10-4 – Light Rain Shower
78° / 75°
Light Rain Shower
In Mount Pleasant, periods of rain are likely with highs near 78°F and lows around 75°F. The chance of rain is 86% with an estimated 0.33in. Wind will be moderate, blowing around 14mph on average and gusts of 20.6mph at 12 PM. High humidity with average of 83% is anticipated, the maximum being 89% at 11 PM and 76% being its lowest at 12 AM. Barometric pressure is its highest of 30.11inHg at 12 AM, a lowest point of 30.02inHg at 5 PM with an avg 30.07inHg.
Mount Pleasant, SC Weather – 10-5 – Light Rain Shower
75° / 71°
Light Rain Shower
In Mount Pleasant, rain showers are likely with a high near 75°F and a low around 71°F. The chance of rain is 93% with an estimated 1.25in. Wind will be moderate, blowing around 16mph on average and gusts of 19mph at 8 PM. High humidity with average of 94% is anticipated, the maximum being 96% at 4 PM and 90% being its lowest at 11 PM. Barometric pressure is its highest of 30.04inHg at 12 AM, a lowest point of 29.92inHg at 5 PM with an avg 29.98inHg.

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