Hourly Weather Forecast - Johnston, SC

12 AM
62°F
10%
10mph
NNE
Partly Cloudy
Humidity
46%
Feels like
62°F
Dew Point
41°F
1 AM
60°F
10%
10mph
NNE
Partly Cloudy
Humidity
46%
Feels like
60°F
Dew Point
39°F
2 AM
58°F
10%
11mph
NE
Partly Cloudy
Humidity
47%
Feels like
58°F
Dew Point
38°F
3 AM
56°F
10%
11mph
NE
Mostly Clear
Humidity
48%
Feels like
56°F
Dew Point
37°F
4 AM
54°F
10%
11mph
NE
Mostly Clear
Humidity
49%
Feels like
54°F
Dew Point
36°F
5 AM
53°F
10%
11mph
NE
Clear
Humidity
51%
Feels like
53°F
Dew Point
35°F
6 AM
51°F
0%
11mph
NE
Clear
Humidity
52%
Feels like
51°F
Dew Point
34°F
7 AM
50°F
0%
10mph
NE
Clear
Humidity
54%
Feels like
46°F
Dew Point
34°F
7:25 AM
8 AM
50°F
0%
10mph
NE
Sunny
Humidity
54%
Feels like
46°F
Dew Point
34°F
9 AM
51°F
0%
10mph
ENE
Sunny
Humidity
52%
Feels like
51°F
Dew Point
34°F
10 AM
54°F
0%
10mph
ENE
Sunny
Humidity
48%
Feels like
54°F
Dew Point
35°F
11 AM
57°F
0%
10mph
ENE
Sunny
Humidity
44%
Feels like
57°F
Dew Point
35°F
12 PM
60°F
0%
9mph
ENE
Sunny
Humidity
40%
Feels like
60°F
Dew Point
35°F
1 PM
62°F
0%
9mph
ENE
Sunny
Humidity
36%
Feels like
62°F
Dew Point
35°F
2 PM
64°F
0%
8mph
E
Sunny
Humidity
33%
Feels like
64°F
Dew Point
35°F
3 PM
66°F
0%
8mph
E
Sunny
Humidity
31%
Feels like
66°F
Dew Point
34°F
4 PM
67°F
0%
7mph
E
Sunny
Humidity
29%
Feels like
67°F
Dew Point
34°F
5 PM
67°F
10%
7mph
E
Sunny
Humidity
30%
Feels like
67°F
Dew Point
34°F
6 PM
65°F
10%
6mph
ESE
Sunny
Humidity
33%
Feels like
65°F
Dew Point
35°F
7 PM
61°F
10%
5mph
E
Mostly Sunny
Humidity
38%
Feels like
61°F
Dew Point
36°F
7:41 PM
8 PM
58°F
10%
4mph
ESE
Mostly Clear
Humidity
44%
Feels like
58°F
Dew Point
36°F
9 PM
56°F
10%
4mph
ESE
Mostly Clear
Humidity
48%
Feels like
56°F
Dew Point
37°F
10 PM
55°F
10%
4mph
ESE
Partly Cloudy
Humidity
51%
Feels like
55°F
Dew Point
37°F
11 PM
54°F
30%
4mph
SE
30% Chance Rain Showers
Humidity
55%
Feels like
54°F
Dew Point
38°F

Today's High Temperature Outlook

Dangerous Heat Continues Across the Southwest

Dozens of record high temperatures will be challenged or shattered across the Southwest today.

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Weekly Drought Map for March 19, 2026

Active Weather, Drought Improvements for Eastern Half; Drying Persists Elsewhere

Story image: WeatherBug user Pat S. captures a plant blooming in Columbia, Md., on February 24, 2017.

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(Image provided by Pixabay.com)

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