Weather forecast for 10 days
Johnston, SC

Weather forecast for the weekend

Saturday, Jun 21.

Mostly Sunny
6:15 am

8:42 pm
EDT
Mostly Sunny
93°F / 72°F
  • Wind: 7mph SE
  • Humidity: 62%
  • Precip. probability: 11%
  • Precipitation: 0"
  • UV index: 10
On Saturday, June 21, sunshine will dominate, with only occasional cloud cover.
The temperature variation is forecasted to range from a maximum of a hot 93.2°F to a minimum of a delightful 71.6°F.
The anticipated maximum temperature will be a couple of degrees higher than June's typical high of 88.7°F.
Sunrise will be at 6:15 am and sunset at 8:42 pm; the daylight will last for 14h and 27min.

Sunday, Jun 22.

Mostly Sunny
6:15 am

8:42 pm
EDT
Mostly Sunny
93°F / 72°F
  • Wind: 6mph SSE
  • Humidity: 63%
  • Precip. probability: 15%
  • Precipitation: 0"
  • UV index: 10
On Sunday, in Johnston, golden sunshine will carry through the day.
The maximum forecasted temperature is a hot 93.2°F, while the minimum temperature will be an agreeable 71.6°F.
On Sunday, the forecasted high will be relatively higher than June's typical maximum of 88.7°F.
Sunrise will be at 6:15 am and sunset at 8:42 pm; the daylight will last for 14h and 27min.

Frequently asked questions

What is the weather forecast for Johnston for Saturday?
On Saturday, in Johnston, bright conditions and mild breezes are expected.
What will be the maximum temperature on Saturday?
On Saturday, the highest temperature will be 93.2°F, while the lowest temperature will be 71.6°F.
What is the weather forecast for Johnston for Sunday?
On Sunday, blue skies and warm sunshine will define the conditions.
What will be the maximum temperature on Sunday?
On Sunday, the maximum temperature will be 93.2°F, while the minimum temperature will be 71.6°F.
What is the weather forecast for Johnston for the next ten days?
In Johnston, a combination of cloudy and clear weather is predicted for the next ten days.
How hot will it be in the next ten days?
The maximum temperature will vary between 91.4°F and 95°F, while the minimum temperature will be between 69.8°F and 73.4°F.
Combining with the humidity, the maximum feel-like temperature will vary between 107.6°F and 114.8°F.
What will be the hottest and the coldest days?
The hottest days will be Monday through next Thursday, with a maximum of 95°F. The coldest days will be Wednesday through Friday, with a maximum of 91.4°F.

Long-term weather forecast

TueJun 17.
  • min.
  • 70°F
Mostly Clear
Mostly Clear
  • Wind: 5mph SW
  • Humidity: 95%
  • UV index: 0
  • Precip. probability: 15%
  • Precipitation: 0"
  • 6:14 am 8:41 pm EDT
WedJun 18.
  • 91°F
  • 72°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph SW
  • Humidity: 67%
  • UV index: 10
  • Precip. probability: 8%
  • Precipitation: 0"
  • 6:14 am 8:42 pm EDT
ThuJun 19.
  • 91°F
  • 70°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph SW
  • Humidity: 66%
  • UV index: 10
  • Precip. probability: 24%
  • Precipitation: 0"
  • 6:15 am 8:42 pm EDT
FriJun 20.
  • 91°F
  • 72°F
Partly Cloudy
Partly Cloudy
  • Wind: 5mph WNW
  • Humidity: 66%
  • UV index: 10
  • Precip. probability: 16%
  • Precipitation: 0"
  • 6:15 am 8:42 pm EDT
SatJun 21.
  • 93°F
  • 72°F
Mostly Sunny
Mostly Sunny
  • Wind: 7mph SE
  • Humidity: 62%
  • UV index: 10
  • Precip. probability: 11%
  • Precipitation: 0"
  • 6:15 am 8:42 pm EDT
SunJun 22.
  • 93°F
  • 72°F
Mostly Sunny
Mostly Sunny
  • Wind: 6mph SSE
  • Humidity: 63%
  • UV index: 10
  • Precip. probability: 15%
  • Precipitation: 0"
  • 6:15 am 8:42 pm EDT
MonJun 23.
  • 95°F
  • 72°F
Mostly Sunny
Mostly Sunny
  • Wind: 7mph SSE
  • Humidity: 61%
  • UV index: 10
  • Precip. probability: 23%
  • Precipitation: 0"
  • 6:16 am 8:43 pm EDT
TueJun 24.
  • 95°F
  • 72°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph SSE
  • Humidity: 59%
  • UV index: 10
  • Precip. probability: 18%
  • Precipitation: 0"
  • 6:16 am 8:43 pm EDT
WedJun 25.
  • 95°F
  • 72°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph S
  • Humidity: 60%
  • UV index: 10
  • Precip. probability: 22%
  • Precipitation: 0"
  • 6:16 am 8:43 pm EDT
ThuJun 26.
  • 95°F
  • 73°F
Mostly Sunny
Mostly Sunny
  • Wind: 7mph SSW
  • Humidity: 59%
  • UV index: 10
  • Precip. probability: 12%
  • Precipitation: 0"
  • 6:16 am 8:43 pm EDT
Across the following ten days, a combination of dull and bright weather is expected.
Rainfall is not anticipated in Johnston in the upcoming days.
Fluctuations in temperature will be barely perceptible over the next several days. Highs will range from 91.4°F to 95°F, while the lowest nighttime temperatures will be also relatively consistent, as the minimum temperature is expected to range between 69.8°F and 73.4°F.
With a maximum temperature of 95°F, Monday through next Thursday will be the hottest days in Johnston; with a maximum temperature of 91.4°F, Wednesday through Friday will be the coldest days in Johnston.
Taking the humidity into consideration, the maximum feel-like temperature may increase significantly and vary between a blistering 107.6°F and a life-threatening 114.8°F.
Updated: Jun 18, 2025 @ 03:47:39 UTC
Published by: Weather U.S. | About Us
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