Chambersburg, PA Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Chambersburg, PA in one place.
Mostly sunny, with a high near 80. West wind 3 to 9 mph.
Local Weather Overview
This forecast page for Chambersburg, PA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Aug 23, 2026 8:43 PM EDT.
The active forecast window currently covers Aug 24 to Aug 30, 2026 for Chambersburg, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 24 to Aug 30, 2026
- Latest sync
- Aug 23, 2026 8:43 PM EDT
- Forecast office
- CTP
- Source
- NOAA / NWS
Daily Outlook
This Week in Chambersburg
Thursday looks like the warmest upcoming period in Chambersburg at 86 degrees F.
Monday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Monday at about 3 to 9 mph W.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 23, 2026 8:43 PM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- CTP
- Radar station
- KLWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 56. West wind 1 to 7 mph.
Mostly sunny, with a high near 82. West wind 1 to 7 mph.
Mostly clear, with a low around 58. Northwest wind 0 to 5 mph.
Mostly sunny, with a high near 85.
Mostly cloudy, with a low around 65.
A slight chance of showers and thunderstorms between 8am and 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 86. Chance of precipitation is 60%.
Showers and thunderstorms likely before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Mostly sunny, with a high near 86.
Partly cloudy, with a low around 63.
Mostly sunny, with a high near 83.
Partly cloudy, with a low around 62.
Mostly sunny, with a high near 84.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Aug 24
|
Mostly Sunny
|
80°F |
3 to 9 mph
W
|
|
Monday Night
Aug 24
|
Partly Cloudy
|
56°F |
1 to 7 mph
W
|
|
Tuesday
Aug 25
|
Mostly Sunny
|
82°F |
1 to 7 mph
W
|
|
Tuesday Night
Aug 25
|
Mostly Clear
|
58°F |
0 to 5 mph
NW
|
|
Wednesday
Aug 26
|
Mostly Sunny
|
85°F |
0 to 3 mph
S
|
|
Wednesday Night
Aug 26
|
Mostly Cloudy
|
65°F |
5 mph
SE
|
|
Thursday
Aug 27
|
Slight Chance Showers And Thunderstorms
|
86°F |
6 mph
S
|
|
Thursday Night
Aug 27
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
66°F |
0 to 5 mph
SW
|
|
Friday
Aug 28
|
Mostly Sunny
|
86°F |
0 to 3 mph
NW
|
|
Friday Night
Aug 28
|
Partly Cloudy
|
63°F |
0 to 3 mph
NW
|
|
Saturday
Aug 29
|
Mostly Sunny
|
83°F |
3 mph
NW
|
|
Saturday Night
Aug 29
|
Partly Cloudy
|
62°F |
3 mph
NE
|
|
Sunday
Aug 30
|
Mostly Sunny
|
84°F |
3 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Chambersburg.
