Weather forecast for 10 daysGrantham, PA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 61°F
  • 34°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 3mphN 355°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:22 am EDT
  • Sunset: 6:24 pm EDT
  • ▼
Tomorrow, on Sunday, skies are expected to be clear and full of sunshine.
A substantial temperature range, peaking at a comfortable 60.8°F and bottoming out at a wintry 33.8°F, is predicted.
Tomorrow's top temperature will adhere to the average October high temperature of 62.8°F.
Sunrise will be at 7:22 am and sunset at 6:24 pm; tomorrow's daylight will last for 11h and 2min.

10-day overview

Daily temperatures

Warmest day: Tuesday 70°C.
Coldest day: tomorrow 61°C.

Chance of precipitation

Highest chance: Sunday - Monday 24%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 32°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphNNW 344°
  • Humidity: 66%
  • UV index: 0
  • Sunrise: 7:20 am EDT
  • Sunset: 6:25 pm EDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 61°F
  • 34°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 3mphN 355°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:22 am EDT
  • Sunset: 6:24 pm EDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 66°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphN 349°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:23 am EDT
  • Sunset: 6:22 pm EDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 11mphN 356°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:24 am EDT
  • Sunset: 6:21 pm EDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 66°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 8mphN 5°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:25 am EDT
  • Sunset: 6:19 pm EDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 68°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 10mphNNW 347°
  • Humidity: 48%
  • UV index: 4
  • Sunrise: 7:26 am EDT
  • Sunset: 6:18 pm EDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 64°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 8mphN 8°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:27 am EDT
  • Sunset: 6:17 pm EDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 63°F
  • 37°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 11%
  • Precipitation: 0"
  • Wind: 6mphNNE 31°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:28 am EDT
  • Sunset: 6:15 pm EDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 63°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 6mphN 0°
  • Humidity: 59%
  • UV index: 4
  • Sunrise: 7:29 am EDT
  • Sunset: 6:14 pm EDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 68°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 7mphNNW 339°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 7:30 am EDT
  • Sunset: 6:13 pm EDT
  • ▼
Primarily bright and occasionally gloomy weather is anticipated.
Rain is not predicted in Grantham in the upcoming days.
In the upcoming days, the highest temperature will vary between 60.8°F and 69.8°F, while the nightly low temperatures will show a considerable swing, as the lowest temperatures will be recorded between 32°F and 44.6°F.
With the highest temperature of 69.8°F, Tuesday will be the warmest day; expect the coldest day on Sunday with a high of 60.8°F.
Updated: Oct 17, 2026 @ 22:45:20 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, uninterrupted sunshine is anticipated.

Tomorrow, the maximum temperature will be 60.8°F, while the minimum temperature will be 33.8°F.
The highest temperature tomorrow will be in line with the average maximum temperature in October. The lowest temperature will be uncommonly lower than the average low of 46.6°F.

On Sunday, in Grantham, sunrise will be at 7:22 am and sunset at 6:24 pm (EDT).

Tomorrow, the daylight will last for 11h and 2min.