Chambersburg, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Chambersburg, IL in one place.
Sunny, with a high near 81. East wind 2 to 6 mph.
Local Weather Overview
This forecast page for Chambersburg, IL 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: Jun 1, 2026 10:56 PM CDT.
The active forecast window currently covers Jun 3 to Jun 8, 2026 for Chambersburg, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 3 to Jun 8, 2026
- Latest sync
- Jun 1, 2026 10:56 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Chambersburg
Monday looks like the warmest upcoming period in Chambersburg at 88 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Thursday at about 5 to 10 mph S.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 1, 2026 10:56 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 57. South wind around 5 mph.
Sunny, with a high near 85.
Mostly clear, with a low around 64.
A slight chance of rain showers between 7am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jun 3
|
Sunny
|
81°F |
2 to 6 mph
E
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
57°F |
5 mph
S
|
|
Thursday
Jun 4
|
Sunny
|
85°F |
5 to 10 mph
S
|
|
Thursday Night
Jun 4
|
Mostly Clear
|
64°F |
8 mph
S
|
|
Friday
Jun 5
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
86°F |
10 mph
S
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms
|
66°F |
8 mph
S
|
|
Saturday
Jun 6
|
Chance Showers And Thunderstorms
|
86°F |
9 mph
SW
|
|
Saturday Night
Jun 6
|
Chance Showers And Thunderstorms
|
66°F |
3 to 7 mph
S
|
|
Sunday
Jun 7
|
Chance Showers And Thunderstorms
|
87°F |
5 to 9 mph
SE
|
|
Sunday Night
Jun 7
|
Chance Showers And Thunderstorms
|
68°F |
7 mph
SE
|
|
Monday
Jun 8
|
Chance Showers And Thunderstorms
|
88°F |
6 to 9 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Chambersburg.