Charleston, SC Weather Tomorrow

Explore tomorrow's Charleston weather before planning your week with a detailed 5 day forecast featuring daily precipitation forecasts, changing sky conditions, daytime highs, overnight lows, Fahrenheit and Celsius temperatures, sunrise, sunset, wind chill, and local wind details for the Charleston area.
Updated: Fri Aug 28th 2026 8:15 PM EDT
Charleston, SC Weather – 8-28 – Overcast
86° / 72°
Overcast
Cloud-filled skies are in the forecast for Charleston, with a high of 86°F and a low of 72°F. The chance of rain is 88% with an estimated 3.19in. Winds will be light at 7mph and gusts of 11.7mph at 9 PM. High humidity with average of 86% is anticipated, the maximum being 92% at 10 PM and 90% being its lowest at 9 PM. Barometric pressure is its highest of 30.04inHg at 10 PM, a lowest point of 30.02inHg at 9 PM with an avg 30.03inHg.
Charleston, SC Weather – 8-29 – Light Rain Shower
77° / 73°

Weather Tomorrow

Light Rain Shower
It will rain at times in Charleston, with a high of 77°F and a low of 73°F. The chance of rain is 88% with an estimated 0.27in. Winds will be light at 7mph and gusts of 11.6mph at 11 PM. High humidity with average of 91% is anticipated, the maximum being 95% at 9 PM and 86% being its lowest at 1 AM. Barometric pressure is its highest of 30.16inHg at 12 PM, a lowest point of 30.04inHg at 12 AM with an avg 30.11inHg.
Charleston, SC Weather – 8-30 – Sunny
94° / 74°
Sunny
In Charleston, it will be sunny with highs near 94°F and lows around 74°F. Rainfall predicted to have a 70% chance with an estimated 0.34in. Winds will be light at 10mph and gusts of 19mph at 8 PM. The humidity will be on the higher side, averaging about 72%, the maximum being 95% at 7 AM and 42% being its lowest at 3 PM. Barometric pressure is its highest of 30.17inHg at 11 AM, a lowest point of 30.06inHg at 5 PM with an avg 30.12inHg.
Charleston, SC Weather – 8-31 – Sunny
96° / 75°
Sunny
In Charleston, sunshine is likely with a high near 96°F and a low around 75°F. Rainfall predicted to have a 66% chance with an estimated 0.14in. Winds will be light at 7mph and gusts of 16.2mph at 8 PM. The humidity will be on the higher side, averaging about 75%, the maximum being 96% at 7 AM and 40% being its lowest at 3 PM. Barometric pressure is its highest of 30.14inHg at 10 AM, a lowest point of 30.04inHg at 5 PM with an avg 30.09inHg.
Charleston, SC Weather – 9-1 – Sunny
96° / 76°
Sunny
Charleston could see sunshine with daytime highs of 96°F and nighttime lows near 76°F. There's a very small chance of rainfall, only about 5%. Winds will be light at 7mph and gusts of 17mph at 11 PM. The humidity will be on the higher side, averaging about 68%, the maximum being 93% at 7 AM and 40% being its lowest at 3 PM. Barometric pressure is its highest of 30.11inHg at 12 PM, a lowest point of 30inHg at 6 PM with an avg 30.06inHg.
Charleston, SC Weather – 9-2 – Sunny
99° / 77°
Sunny
A sunny day is in the forecast for Charleston, with a high of 99°F and a low of 77°F. There's a very small chance of rainfall, only about 6%. Winds will be light at 6mph and gusts of 16.8mph at 12 AM. The humidity will be on the higher side, averaging about 63%, the maximum being 85% at 5 AM and 37% being its lowest at 5 PM. Barometric pressure is its highest of 30.07inHg at 11 AM, a lowest point of 29.97inHg at 5 PM with an avg 30.03inHg.

Currently

Overcast 78°F
30.01 inHg.
Barometer
87%
Humidity
SSW 6.8 mph
Wind
Overcast

5 Day Forecast Nearby

More Local Information

Bookmark and Share

Get the LocalConditions.com App on Google Play
Sign up for a membership to go Ad free

Charleston Community Weather Reports

Write your own Charleston, SC report, forecast, or traffic update:


Will not be posted, shared or used for marketing!

Please note by clicking on "Post" you acknowledge that you have read our Privacy Policy and Terms of Service and the Charleston, SC report and/or forecast you are posting is in compliance with such terms. If you are under 18, do not submit this form. Be respectful! Inappropriate content will be removed by a moderator.