There is a new URL for this page, be sure to update your bookmarks: Johns Island, SC 5-Day Weather Forecast
Johns Island, SC Weather Forecast | 5 Day
Updated: Wed Jul 16th 2025 10:15 PM EDT
Ask About Weather
Test our newly developed Weather Chatbot. It provides up to 10 days of forecast information!
Sunny
Wed 7-16
Sunny with a high of 94°F and a low of 80°F. Wind will be moderate, blowing around 12mph on average and gusts of 16.9mph at 11 PM. The humidity will be on the higher side, averaging about 78%, the maximum being 86% at 11 PM and 86% being its lowest at 11 PM. Barometric pressure is its highest of 30.09inHg at 11 PM, a lowest point of 30.09inHg at 11 PM with an avg 30.09inHg.
- HI: 94°F
- LO: 80°F
- Rainfall: 0%
- Snowfall: 0%
- Wind
11.6 mph - Humidity
78% avg. - UV Index
2.9 - Air QualityGood
- Sunrise
06:23 AM - Sunset
08:28 PM - Moonrise
No moonrise - Moonset
12:13 PM - Moon Phase
Waning Gibbous
Partly Cloudy
Thu 7-17
Partly Cloudy with a high of 94°F and a low of 80°F. Wind will be moderate, blowing around 14mph on average and gusts of 18mph at 1 AM. The humidity will be on the higher side, averaging about 77%, the maximum being 89% at 5 AM and 63% being its lowest at 4 PM. Barometric pressure is its highest of 30.15inHg at 11 AM, a lowest point of 30.06inHg at 3 AM with an avg 30.1inHg.
- HI: 94°F
- LO: 80°F
- Rainfall: 0%
- Snowfall: 0%
- Wind
13.4 mph - Humidity
77% avg. - UV Index
2.9 - Air QualityGood
- Sunrise
06:24 AM - Sunset
08:27 PM - Moonrise
12:07 AM - Moonset
01:19 PM - Moon Phase
Last Quarter
Overcast
Fri 7-18
Overcast with a high of 98°F and a low of 78°F. Wind will be moderate, blowing around 15mph on average and gusts of 19.8mph at 6 PM. The humidity will be on the higher side, averaging about 80%, the maximum being 97% at 2 AM and 58% being its lowest at 2 PM. Barometric pressure is its highest of 30.16inHg at 11 AM, a lowest point of 30.09inHg at 5 AM with an avg 30.11inHg.
- HI: 98°F
- LO: 78°F
- Rainfall: 0%
- Snowfall: 0%
- Wind
14.1 mph - Humidity
80% avg. - UV Index
2.6 - Air QualityGood
- Sunrise
06:24 AM - Sunset
08:27 PM - Moonrise
12:38 AM - Moonset
02:28 PM - Moon Phase
Last Quarter
Partly Cloudy
Sat 7-19
Partly Cloudy with a high of 102°F and a low of 78°F. Wind will be moderate, blowing around 14mph on average and gusts of 19.2mph at 12 AM. The humidity will be on the higher side, averaging about 73%, the maximum being 95% at 2 AM and 45% being its lowest at 5 PM. Barometric pressure is its highest of 30.13inHg at 11 PM, a lowest point of 30.02inHg at 5 PM with an avg 30.09inHg.
- HI: 102°F
- LO: 78°F
- Rainfall: 0%
- Snowfall: 0%
- Wind
13.2 mph - Humidity
73% avg. - UV Index
2.8 - Air QualityModerate
- Sunrise
06:25 AM - Sunset
08:26 PM - Moonrise
01:14 AM - Moonset
03:39 PM - Moon Phase
Waning Crescent
Moderate Rain
Sun 7-20
Moderate Rain with a high of 97°F and a low of 79°F. Rainfall expected to have a 71% chance with an estimated 0.24in. Wind will be moderate, blowing around 15mph on average and gusts of 25.7mph at 8 PM. The humidity will be on the higher side, averaging about 66%, the maximum being 83% at 3 AM and 43% being its lowest at 1 PM. Barometric pressure is its highest of 30.07inHg at 12 AM, a lowest point of 29.94inHg at 5 PM with an avg 30.01inHg.
- HI: 97°F
- LO: 79°F
- Rainfall: 71% | est. 0.24in
- Snowfall: 0%
- Wind
14.3 mph - Humidity
66% avg. - UV Index
2.2 - Air QualityModerate
- Sunrise
06:26 AM - Sunset
08:26 PM - Moonrise
01:56 AM - Moonset
04:51 PM - Moon Phase
Waning Crescent
Patchy Rain Nearby
Mon 7-21
Scattered showers with a high of 97°F and a low of 78°F. Rainfall expected in the surrounding area to have a 66% chance with an estimated 0.11in. Wind will be moderate, blowing around 12mph on average and gusts of 18.2mph at 11 PM. The humidity will be on the higher side, averaging about 77%, the maximum being 88% at 11 PM and 46% being its lowest at 2 PM. Barometric pressure is its highest of 29.99inHg at 12 AM, a lowest point of 29.88inHg at 5 PM with an avg 29.92inHg.
- HI: 97°F
- LO: 78°F
- Rainfall: 66% | est. 0.11in
- Snowfall: 0%
- Wind
11.6 mph - Humidity
77% avg. - UV Index
0.1 - Air QualityTBA
- Sunrise
06:26 AM - Sunset
08:25 PM - Moonrise
02:46 AM - Moonset
06:01 PM - Moon Phase
Waning Crescent
Currently
 |
83°F |
30.08 inHg.
Barometer 84%
Humidity S 16.2 mph Wind |
| Partly Cloudy | ||
5 Day Forecast Nearby
More Local Information
Bookmark and Share
