Weather forecast for 10 days
Mount Gretna, PA

Weather forecast for the weekend

Saturday, Jun 21.

Partly Cloudy
5:34 am

8:40 pm
EDT
Partly Cloudy
88°F / 70°F
  • Wind: 7mph WSW
  • Humidity: 60%
  • Precip. probability: 6%
  • Precipitation: 0"
  • UV index: 9
On Saturday, in Mount Gretna, moderate cloud cover will mix with sunshine throughout the day.
The temperature scale will run from a maximum of a tropical 87.8°F to a minimum of an agreeable 69.8°F.
The maximum temperature will be higher and more in tune with July's average of 82°F than with June's.
Sunrise will be at 5:34 am and sunset at 8:40 pm; the daylight will last for 15h and 6min.

Sunday, Jun 22.

Partly Cloudy
5:35 am

8:40 pm
EDT
Partly Cloudy
91°F / 73°F
  • Wind: 9mph W
  • Humidity: 64%
  • Precip. probability: 5%
  • Precipitation: 0"
  • UV index: 9
On Sunday, in Mount Gretna, partly cloudy skies will persist, making for a mix of sun and clouds.
The temperature will fluctuate from a high of a humid 91.4°F to a low of a warm 73.4°F.
On Sunday, the higher temperature fits better with the expected maximum in July than June.
Sunrise will be at 5:35 am and sunset at 8:40 pm; the daylight will last for 15h and 5min.

Frequently asked questions

What is the weather forecast for Mount Gretna for Saturday?
On Saturday, the sky will feature a blend of clouds and sunshine.
What will be the highest temperature on Saturday in Mount Gretna?
On Saturday, the maximum temperature will be 87.8°F, while the minimum temperature will be 69.8°F.
What is the weather forecast for Mount Gretna for Sunday?
On Sunday, patchy clouds will move across the sky, allowing for sunshine at times.
What will be the highest temperature on Sunday?
On Sunday, the maximum temperature will be 91.4°F, while the minimum temperature will be 73.4°F.
What is the weather forecast for Mount Gretna for the next ten days?
In Mount Gretna, a combination of gloomy, bright and storm-filled weather is anticipated for the next ten days.
Will it rain in the next ten days?
Rainfall is expected on Wednesday through next Saturday in Mount Gretna. Next Thursday, with light precipitation of 0.28", will be the day with the most rainfall.
How hot will it be in the next ten days?
The maximum temperature will range between 80.6°F and 96.8°F, as the minimum temperature will range between 62.6°F and 75.2°F.
Including the humidity's impact, the maximum feel-like temperature will vary between 84.2°F and 116.6°F.
What will be the hottest and the coldest days?
The hottest days will be Monday and Tuesday, with a maximum of 96.8°F. Next Friday will be the coldest day, with a maximum temperature of 80.6°F.

Long-term weather forecast

ThuJun 19.
  • 88°F
  • 63°F
Partly Cloudy
Partly Cloudy
  • Wind: 14mph SW
  • Humidity: 59%
  • UV index: 9
  • Precip. probability: 15%
  • Precipitation: 0"
  • 5:34 am 8:40 pm EDT
FriJun 20.
  • 82°F
  • 64°F
Mostly Sunny
Mostly Sunny
  • Wind: 12mph WNW
  • Humidity: 59%
  • UV index: 9
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:34 am 8:40 pm EDT
SatJun 21.
  • 88°F
  • 70°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph WSW
  • Humidity: 60%
  • UV index: 9
  • Precip. probability: 6%
  • Precipitation: 0"
  • 5:34 am 8:40 pm EDT
SunJun 22.
  • 91°F
  • 73°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph W
  • Humidity: 64%
  • UV index: 9
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:35 am 8:40 pm EDT
MonJun 23.
  • 97°F
  • 75°F
Mostly Sunny
Mostly Sunny
  • Wind: 7mph WNW
  • Humidity: 58%
  • UV index: 9
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:35 am 8:41 pm EDT
TueJun 24.
  • 97°F
  • 75°F
Sunny
Sunny
  • Wind: 7mph WNW
  • Humidity: 54%
  • UV index: 9
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:35 am 8:41 pm EDT
WedJun 25.
  • 95°F
  • 72°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph NW
  • Humidity: 56%
  • UV index: 9
  • Precip. probability: 24%
  • Precipitation: 0.08"
  • 5:36 am 8:41 pm EDT
ThuJun 26.
  • 91°F
  • 68°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 7mph SSW
  • Humidity: 65%
  • UV index: 9
  • Precip. probability: 57%
  • Precipitation: 0.28"
  • 5:36 am 8:41 pm EDT
FriJun 27.
  • 81°F
  • 68°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 8mph S
  • Humidity: 76%
  • UV index: 9
  • Precip. probability: 57%
  • Precipitation: 0.24"
  • 5:36 am 8:41 pm EDT
SatJun 28.
  • 84°F
  • 68°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 7mph WSW
  • Humidity: 70%
  • UV index: 9
  • Precip. probability: 47%
  • Precipitation: 0.24"
  • 5:37 am 8:41 pm EDT
Looking ahead, conditions suggest a period of dull, sunny and thunderstorm-prone weather is expected.
Rainfall is anticipated on Wednesday through next Saturday.
Temperature differences will be noticeable over the next several days. The temperature is expected to swing from 80.6°F up to 96.8°F, while there will be also a marked difference in overnight low temperatures, as the overnight lows will vary from 62.6°F to 75.2°F.
Monday and Tuesday, with the highest temperature of 96.8°F, will be the hottest days in Mount Gretna; next Friday will be the coldest day, with the highest temperature of 80.6°F.
Including the humidity's impact, the maximum feel-like temperature may increase significantly and vary between 84.2°F and a life-threatening 116.6°F.
Updated: Jun 19, 2025 @ 15:47:44 UTC
Published by: Weather U.S. | About Us
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