Weather forecast for 10 daysChambersburg, PA

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 54°F
  • 34°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 14mphN 351°
  • Humidity: 42%
  • UV index: 4
  • Sunrise: 7:23 am EDT
  • Sunset: 6:28 pm EDT
  • ▼
Today, on Saturday, October 17, the outlook remains bright and sunny.
The temperature is anticipated to oscillate between a maximum of a crisp 53.6°F and a minimum of an icy 33.8°F.
Today, the maximum temperature is expected to align with November's average high of 50°F instead of October's.
Sunrise was at 7:23 am and sunset will be at 6:28 pm; the daylight will last for 11h and 5min.

Sunday Oct 18, 2026

  • 61°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 4mphNNE 20°
  • Humidity: 46%
  • UV index: 4
  • Sunrise: 7:24 am EDT
  • Sunset: 6:27 pm EDT
  • ▼
Tomorrow, expect consistent sunshine and open skies.
The maximum temperature will be a breezy 60.8°F, while the minimum temperature will be a wintry 35.6°F.
Expect the maximum temperature to remain consistent with the typical October high of 62.8°F.
Sunrise will be at 7:24 am and sunset at 6:27 pm; tomorrow's daylight will last for 11h and 2min.

10-day overview

Daily temperatures

Warmest day: Tuesday 70°C.
Coldest day: today 54°C.

Chance of precipitation

Highest chance: Sunday - Monday 24%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 54°F
  • 34°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 14mphN 351°
  • Humidity: 42%
  • UV index: 4
  • Sunrise: 7:23 am EDT
  • Sunset: 6:28 pm EDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 61°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 4mphNNE 20°
  • Humidity: 46%
  • UV index: 4
  • Sunrise: 7:24 am EDT
  • Sunset: 6:27 pm EDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 68°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphN 9°
  • Humidity: 49%
  • UV index: 4
  • Sunrise: 7:25 am EDT
  • Sunset: 6:25 pm EDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 9mphN 2°
  • Humidity: 49%
  • UV index: 4
  • Sunrise: 7:26 am EDT
  • Sunset: 6:24 pm EDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 66°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 8mphNNE 16°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:27 am EDT
  • Sunset: 6:22 pm EDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 68°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 11%
  • Precipitation: 0"
  • Wind: 8mphN 352°
  • Humidity: 49%
  • UV index: 4
  • Sunrise: 7:28 am EDT
  • Sunset: 6:21 pm EDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 64°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 8mphN 11°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:29 am EDT
  • Sunset: 6:20 pm EDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 63°F
  • 39°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 7mphNNE 20°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:30 am EDT
  • Sunset: 6:18 pm EDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 64°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 7mphN 0°
  • Humidity: 61%
  • UV index: 4
  • Sunrise: 7:32 am EDT
  • Sunset: 6:17 pm EDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 68°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 7mphNNW 336°
  • Humidity: 64%
  • UV index: 3
  • Sunrise: 7:33 am EDT
  • Sunset: 6:16 pm EDT
  • ▼
Ten-day trends indicate that primarily sunny and occasionally cloud-filled weather is forecasted.
Rain is not anticipated in Chambersburg in the upcoming period.
Significant changes in temperature are expected across the forecast period. Highs will range from 53.6°F to 69.8°F, while the fluctuation in night temperatures will be also significant, as nighttime lows are forecast to fall between 33.8°F and 46.4°F.
Expect the warmest day on Tuesday, with temperatures peaking at 69.8°F; today is the coldest day, with a maximum temperature of 53.6°F.
Updated: Oct 17, 2026 @ 15:28:28 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, expect sunny weather with a crisp, clear sky.

Today, the maximum temperature will be 53.6°F, while the minimum temperature will be 33.8°F.
The highest temperature today will be noticeably lower than the average maximum of 62.8°F in October. The lowest temperature will be also notably lower than the average low of 45.7°F.

On Saturday, in Chambersburg, sunrise was at 7:23 am and sunset will be at 6:28 pm (EDT).

In Chambersburg, the length of the day today will be 11h and 5min.

On Sunday, in Chambersburg, uninterrupted sunshine is anticipated.

Tomorrow, the highest temperature in Chambersburg will be 60.8°F, while the lowest temperature will be 35.6°F.
The maximum temperature will be in line with the average highest temperature of 62.8°F in October. Tomorrow, the lowest temperature will be uncommonly lower than the average low of 45.7°F.

On Sunday, in Chambersburg, sunrise will be at 7:24 am and sunset at 6:27 pm (EDT).

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