Weather forecast for 10 days
Grantham, PA

Weather forecast for the weekend

Saturday, Jun 21.

Partly Cloudy
5:37 am

8:42 pm
EDT
Partly Cloudy
88°F / 70°F
  • Wind: 7mph SW
  • Humidity: 59%
  • Precip. probability: 6%
  • Precipitation: 0"
  • UV index: 9
On Saturday, in Grantham, changing cloud patterns will allow for periods of sunshine.
Rain is not forecasted. Expected temperature values will span from a blazing 87.8°F down to an agreeable 69.8°F.
On Saturday, the hotter weather will bring a peak temperature more in tune with July's 83.5°F.
Sunrise will be at 5:37 am and sunset at 8:42 pm; the daylight will last for 15h and 5min.

Sunday, Jun 22.

Partly Cloudy
5:37 am

8:42 pm
EDT
Partly Cloudy
91°F / 73°F
  • Wind: 7mph W
  • Humidity: 60%
  • Precip. probability: 15%
  • Precipitation: 0"
  • UV index: 8
On Sunday, in Grantham, clouds and sunshine will create a dynamic sky throughout the day.
Rain is not anticipated. The temperature is expected to oscillate between a maximum of a tropical 91.4°F and a minimum of a warm 73.4°F.
The forecast high is higher and more aligned with what is typical in July than in June.
Sunrise will be at 5:37 am and sunset at 8:42 pm; the daylight will last for 15h and 5min.

Frequently asked questions

What is the weather forecast for Grantham for Saturday?
On Saturday, a pleasant mix of sun and clouds will define the day.
Will it rain on Saturday?
No, it will not rain on Saturday.
What will be the highest temperature on Saturday?
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 Grantham for Sunday?
On Sunday, clouds and sunshine will create a dynamic sky throughout the day.
Will it rain on Sunday?
No, it will not rain on Sunday.
What will be the highest temperature on Sunday?
On Sunday, the highest temperature will be 91.4°F, while the lowest temperature will be 73.4°F.
What is the weather forecast for Grantham for the next ten days?
In Grantham, weather will be unstable, and a combination of turbulent, dry and sunny, cloudy and rainy weather is expected for the next ten days.
Will it rain in the next ten days?
Rain is expected on Monday through Thursday and next Wednesday in Grantham. Wednesday, 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 vary between 64.4°F and 95°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 range between 64.4°F and 113°F.
What will be the hottest and the coldest days?
With a maximum temperature of 95°F, next Monday and Tuesday will be the hottest days. Today is the coldest day, with a maximum temperature of 64.4°F.

Long-term weather forecast

MonJun 16.
  • 64°F
  • 63°F
Showers
Showers
  • Wind: 6mph E
  • Humidity: 91%
  • UV index: 4
  • Precip. probability: 83%
  • Precipitation: 0.08"
  • 5:36 am 8:41 pm EDT
TueJun 17.
  • 75°F
  • 68°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 7mph SSE
  • Humidity: 87%
  • UV index: 4
  • Precip. probability: 45%
  • Precipitation: 0.12"
  • 5:36 am 8:41 pm EDT
WedJun 18.
  • 84°F
  • 70°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 7mph WSW
  • Humidity: 76%
  • UV index: 8
  • Precip. probability: 53%
  • Precipitation: 0.28"
  • 5:36 am 8:41 pm EDT
ThuJun 19.
  • 84°F
  • 63°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 13mph WSW
  • Humidity: 66%
  • UV index: 8
  • Precip. probability: 53%
  • Precipitation: 0.16"
  • 5:36 am 8:42 pm EDT
FriJun 20.
  • 84°F
  • 64°F
Mostly Sunny
Mostly Sunny
  • Wind: 10mph WNW
  • Humidity: 57%
  • UV index: 9
  • Precip. probability: 8%
  • Precipitation: 0"
  • 5:37 am 8:42 pm EDT
SatJun 21.
  • 88°F
  • 70°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph SW
  • Humidity: 59%
  • UV index: 9
  • Precip. probability: 6%
  • Precipitation: 0"
  • 5:37 am 8:42 pm EDT
SunJun 22.
  • 91°F
  • 73°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph W
  • Humidity: 60%
  • UV index: 8
  • Precip. probability: 15%
  • Precipitation: 0"
  • 5:37 am 8:42 pm EDT
MonJun 23.
  • 95°F
  • 75°F
Mostly Sunny
Mostly Sunny
  • Wind: 6mph WNW
  • Humidity: 59%
  • UV index: 9
  • Precip. probability: 6%
  • Precipitation: 0"
  • 5:37 am 8:42 pm EDT
TueJun 24.
  • 95°F
  • 73°F
Sunny
Sunny
  • Wind: 6mph W
  • Humidity: 56%
  • UV index: 9
  • Precip. probability: 8%
  • Precipitation: 0"
  • 5:38 am 8:42 pm EDT
WedJun 25.
  • 90°F
  • 70°F
Isolated Thunderstorms
Isolated Thunderstorms
  • Wind: 6mph WNW
  • Humidity: 61%
  • UV index: 9
  • Precip. probability: 32%
  • Precipitation: 0.08"
  • 5:38 am 8:43 pm EDT
Over the course of the next ten days, expect shifting weather, and a mix of thunderstorm-prone, mostly clear, dull and damp weather is forecasted.
Rain is predicted for Monday through Thursday and next Wednesday.
Temperature variation will be noticeable in the upcoming period. Forecast highs will fluctuate between 64.4°F and 95°F, while the lowest nightly temperature differences will be also quite pronounced, as the overnight lows will vary from 62.6°F to 75.2°F.
Next Monday and Tuesday, with the highest temperature of 95°F, will be the hottest days in Grantham; today is the coldest day, with a maximum temperature of 64.4°F.
Taking the humidity into consideration, the maximum feel-like temperature may increase considerably and range between 64.4°F and a life-threatening 113°F.
Updated: Jun 16, 2025 @ 08:20:52 UTC
Published by: Weather U.S. | About Us
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