Current Weather
11:12 AM
85°F
Mostly cloudy
RealFeel® 100°
Hot
RealFeel Shade™ 90°
Hot
RealFeel®
100°
RealFeel Shade™
90°
Heat Index
91°
Max UV Index
7.5 (Very High)
Wind
SW 5 mph
Wind Gusts
11 mph
Humidity
63%
Indoor Humidity
63% (Extremely Humid)
Dew Point
72° F
Pressure
↓ 30.03 in
Cloud Cover
76%
Visibility
17 mi
Cloud Ceiling
26800 ft
Day
7/23
93°Hi
RealFeel®
103°
Very Hot
RealFeel Shade™
96°
Hot
Rather cloudy with a heavy thunderstorm this afternoon; watch for flooding
Max UV Index9.0 (Very High)
AccuLumen Brightness Index™5 (Medium)
WindWSW 7 mph
Wind Gusts15 mph
Probability of Precipitation55%
Probability of Thunderstorms33%
Precipitation0.15 in
Rain0.15 in
Hours of Precipitation1
Hours of Rain1
Cloud Cover72%
Night
7/23
72°Lo
RealFeel®
75°
Pleasant
Cloudy with a thunderstorm in the area; any thunderstorm can cause flash flooding and damaging winds
WindE 5 mph
Wind Gusts7 mph
Probability of Precipitation55%
Probability of Thunderstorms33%
Precipitation0.10 in
Rain0.10 in
Hours of Precipitation1
Hours of Rain1
Cloud Cover95%
Sun & Moon
14 hrs 02 mins
Rise
6:33 AM
Set
8:35 PM
Waxing Gibbous
Rise
4:09 PM
Set
2:00 AM
Temperature History
7/23High
Low
Forecast
93°
72°
Average
94°
71°
Last Year
91°
75°
Current Weather Conditions in Johnston
Johnston, South Carolina is currently Mostly cloudy with a temperature of 85°. The current RealFeel® Temperature is 100° (Hot) based on observed conditions including 63% humidity, 76% cloud cover, a UV index of 8, and winds of 5 mph. In shade, the RealFeel Shade™ is 90°. AccuWeather's MinuteCast® provides minute-by-minute precipitation forecasts for Johnston, powered by forecasting systems and proprietary technology developed by AccuWeather meteorologists since 1962.