Weather forecast for tomorrowChambersburg, PA

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 61°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 4mphNNE 20°
  • Humidity: 47%
  • UV index: 4
  • Sunrise: 7:24 am EDT
  • Sunset: 6:27 pm EDT
  • ▼
On Sunday, in Chambersburg, expect consistent sunshine and open skies.
Temperature is expected to swing from a high of a breezy 60.8°F to a low of an icy 35.6°F.
The high is anticipated to coincide with October's normal 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.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 59°C.
Coldest hour: 6 am 36°C.

Chance of precipitation

Highest chance: 6 am 3%.

Hourly weather forecast

  • 12 am
  • 41°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphN 357°
  • Humidity: 66%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 39°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphN 354°
  • Humidity: 69%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 37°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 3mphN 4°
  • Humidity: 72%
  • Pressure: 30.53"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 36°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 3mphNNE 11°
  • Humidity: 76%
  • Pressure: 30.56"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:24 am
  • 8 am
  • 36°F
  • Feels like:
    36°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 2mphN 8°
  • Humidity: 78%
  • Pressure: 30.59"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 45°F
  • Feels like:
    43°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphN 7°
  • Humidity: 54%
  • Pressure: 30.59"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 54°F
  • Feels like:
    52°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphNNE 24°
  • Humidity: 38%
  • Pressure: 30.59"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 57°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphNNE 32°
  • Humidity: 31%
  • Pressure: 30.53"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 59°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphNNE 21°
  • Humidity: 32%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 55°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphNE 45°
  • Humidity: 45%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:27 pm
  • 8 pm
  • 50°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphESE 102°
  • Humidity: 55%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 46°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 1mphENE 74°
  • Humidity: 67%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, primarily sunny and occasionally overcast weather is anticipated.
The temperature will be between a minimum of 33.8°F and a maximum of 59°F. The warmest part of the day will be from 3 pm to 5 pm.
The temperature tomorrow will be in line with the average high in October. The lowest temperature tomorrow is more comparable to November's average minimum of 34.7°F than the average low in October of 45.7°F.
Updated: Oct 17, 2026 @ 13:54:58 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, the weather remains calm, bright, and sunny.

Tomorrow, the maximum temperature will be 60.8°F, while the minimum temperature will be 35.6°F.
The maximum temperature tomorrow will be in line with the average highest temperature in October. The lowest temperature tomorrow will be notably 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).

In Chambersburg, the length of the day tomorrow will be 11h and 2min.