Johnston, SC Weather

Updated: Sat Jul 12th 2025 3:15 AM EDT

Mist

74^°F 23^°C

Feels Like 78^°F / 26^°C

Johnston, SC weather condition is Mist and 74°F.

Today's Weather in Johnston,SC

The current weather in Johnston SC as of 3:15 AM EDT on Sat Jul 12th 2025, has a sky condition of Mist with the visibility of 9 mile(s). It is 74 degrees fahrenheit but feels like 78 degrees. The barometric pressure is 30.06 - measured by inches of mercury - and is rising since its last observation. The humidity is 94 percent that's rising since the last report, with a dew point of 76 degrees fahrenheit which is falling. Wind direction is from the Southwest at 5.6 miles per hour, gusting at 9.7 miles per hour. Sunrise is at 6:26 AM and Sunset is at 8:40 PM. The moon phase is a Waning Gibbous moon rising at 10:18 PM. Thank you for listening to the weather report from LocalConditions.com!

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Barometer 30.06 inHg. rising
Humidity 94% rising
Heat Index 84°F
Wind from SW. 5.6 mph
Wind Gust 9.7 miles per hour
Wind Chill 78°F
UV Index 0

Dew Point 76°F falling
Visibility 9 mi.
Sunrise 6:26 AM
Sunset 8:40 PM
Moonrise 10:18 PM
Moonset 7:59 AM
Moon Phase Waning Gibbous Moon

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Radar Alerts Next 48 Hours Traffic

Hourly Forecast - Next 8 hours

5 Day Forecast

Sunny

Sunny with a high of 97°F and a low of 75°F. Winds will be light at 9mph at times. The humidity will be on the higher side, reaching around 69%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 97° \| Lo 75°	69%	0% \| est. 0in	0%	8.3 mph

Partly Cloudy

Partly Cloudy with a high of 95°F and a low of 79°F. Winds will be moderate, blowing around 19mph. The humidity will be on the higher side, reaching around 74%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 95° \| Lo 79°	74%	0%	0%	18.8 mph

Patchy Rain Nearby

Patchy Rain Nearby with a high of 91°F and a low of 72°F. Probable rainfall forecasted, having a 78% chance with an estimated 0.02in. Winds will be moderate, blowing around 11mph. The humidity will be on the higher side, reaching around 71%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 91° \| Lo 72°	71%	78% \| est. 0.02in	0%	10.1 mph

Patchy Rain Nearby

Patchy Rain Nearby with a high of 91°F and a low of 73°F. Probable rainfall forecasted, having an 88% chance with an estimated 0.02in. Winds will be moderate, blowing around 12mph. The humidity will be on the higher side, reaching around 76%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 91° \| Lo 73°	76%	88% \| est. 0.02in	0%	11.6 mph

Partly Cloudy

Partly Cloudy with a high of 93°F and a low of 74°F. Winds will be moderate, blowing around 11mph. The humidity will be on the higher side, reaching around 63%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 93° \| Lo 74°	63%	0%	0%	10.3 mph

Yesterday Tomorrow 5-Day

Weather Radar Map

Live Johnston, SC weather with granular precipitation, radar, barometric pressure, temperatures and wind speeds for today thru Wednesday, as you toggle through each map layer. Use the slider to move forward and back in time to view how current data and forecasts will affect the region; you can press or click on the map to show metrics available for each tab. The related timestamp is located above the Play button which will animate the weather forecast.

Hourly Temperature

The current temperature today is 74^°F. The morning temperature of 74°^F is lowest at 3am with the daytime high of 91°^F at 1pm and a low around 82°^F at 11pm is expected.