Johnston, SC weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Johnston now
Loading the National Weather Service forecast…
Johnston weather by the hour
Johnston weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Johnston.
This week in Johnston
Sunrise, sunset and moon in Johnston
What is the weather usually like in Johnston?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 93°F average high
- Januarycoldest month · 33°F average low
- 48.5 inprecipitation per year · 1,231 mm
- 1.0 insnowfall per year · 3 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Johnston: April–May and September–October, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station JOHNSTON 4 SW, SC US (USC00384607), adjusted for the elevation of Johnston.
Johnston weather month by month
Sunrise and sunset in Johnston through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:30 AM | 5:42 PM | 10 h 12 min |
| February | 7:09 AM | 6:12 PM | 11 h 2 min |
| March | 7:35 AM | 7:36 PM | 12 h 0 min |
| April | 6:54 AM | 7:59 PM | 13 h 4 min |
| May | 6:24 AM | 8:22 PM | 13 h 58 min |
| June | 6:14 AM | 8:41 PM | 14 h 26 min |
| July | 6:26 AM | 8:40 PM | 14 h 13 min |
| August | 6:48 AM | 8:15 PM | 13 h 27 min |
| September | 7:09 AM | 7:35 PM | 12 h 25 min |
| October | 7:31 AM | 6:54 PM | 11 h 23 min |
| November | 6:58 AM | 5:25 PM | 10 h 27 min |
| December | 7:23 AM | 5:21 PM | 9 h 57 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in Johnston?
Johnston has a humid subtropical climate. The warmest month is July, with an average high of 93°F (34°C), and the coldest is January, with average lows of 33°F (0°C).
It gets about 48.5 inches (1,231 mm) of precipitation a year. The wettest month is June and the driest is October. Snow is common: about 1 inches fall in an average year.
The best time to visit Johnston is April–May and September–October. At 663 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Johnston
Weather in towns near Johnston
Questions about the weather in Johnston
What is the hottest month in Johnston?
July, with an average high of 93°F (34°C).
What is the coldest month in Johnston?
January, with an average low of 33°F (0°C).
How much does it rain in Johnston?
About 48.5 inches (1,231 mm) a year; the wettest month is June.
Does it snow in Johnston?
Yes, about 1 inches of snow fall in an average year.
When is the best time to visit Johnston?
April–May and September–October, when temperatures are most pleasant and rainy days are fewer.
What climate does Johnston have?
Humid subtropical (Köppen Cfa).
What is the weather like in Johnston in November?
Highs average 66°F and lows 40°F, with about 3.3 inches of precipitation.
What time is sunrise in Johnston?
Around 6:58 AM in mid-November, and sunset around 5:25 PM. Today’s exact times are shown above.
Where does this Johnston weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Johnston.
Last updated: