Chambersburg, IL Weather Forecast

Local 7-day forecast

62°
F

Sunny

Track current conditions, temperature changes, wind, and the full daily outlook for Chambersburg, IL in one place.

Sunday, April 19, 2026
Wind: 6 to 12 mph NW
Sunday

Sunny, with a high near 62.

Local 7-day forecast

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: Apr 15, 2026 10:42 PM CDT.

The active forecast window currently covers Apr 19 to Apr 22, 2026 for Chambersburg, IL.

Page Snapshot

Page focus
city weather
Forecast window
Apr 19 to Apr 22, 2026
Latest sync
Apr 15, 2026 10:42 PM CDT
Forecast office
LSX
Source
NOAA / NWS
Next High
62°F
Sunday
Next Low
39°F
Sunday Night
Rain Outlook
2
Periods mentioning precipitation
Windiest
10 to 14 mph
Tuesday

Daily Outlook

Today
Apr 19
Sunny
62 °F
/ 39°F
Wind 6 to 12 mph
Mon
Apr 20
Sunny
71 °F
/ 51°F
Wind 5 to 12 mph
Tue
Apr 21
Sunny
74 °F
/ 53°F
Wind 10 to 14 mph
Wed
Apr 22
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
76 °F
Wind 7 to 10 mph

This Week in Chambersburg

Wednesday looks like the warmest upcoming period in Chambersburg at 76 degrees F.

Sunday Night is the coolest period ahead with temperatures near 39 degrees F.

The strongest winds are forecast for Tuesday at about 10 to 14 mph SW.

Precipitation is mentioned in 2 upcoming forecast periods.

Forecast Details

Last updated
Apr 15, 2026 10:42 PM CDT
Coverage
4 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 source

Extended Forecast

Sunday Night
Apr 19
39°F
Clear
5 to 8 mph E

Clear, with a low around 39.

Monday
Apr 20
71°F
Sunny
5 to 12 mph S

Sunny, with a high near 71.

Monday Night
Apr 20
51°F
Mostly Clear
10 mph S

Mostly clear, with a low around 51.

Tuesday
Apr 21
74°F
Sunny
10 to 14 mph SW

Sunny, with a high near 74.

Tuesday Night
Apr 21
53°F
Partly Cloudy then Slight Chance Rain Showers
7 to 10 mph SW

A slight chance of rain showers after 1am. Partly cloudy, with a low around 53. Chance of precipitation is 20%.

Wednesday
Apr 22
76°F
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
7 to 10 mph SW

A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 76. Chance of precipitation is 20%.

Detailed Forecast

Period Conditions Temp Wind
Sunday
Apr 19
Sunny
62°F
6 to 12 mph
NW
Sunday Night
Apr 19
Clear
39°F
5 to 8 mph
E
Monday
Apr 20
Sunny
71°F
5 to 12 mph
S
Monday Night
Apr 20
Mostly Clear
51°F
10 mph
S
Tuesday
Apr 21
Sunny
74°F
10 to 14 mph
SW
Tuesday Night
Apr 21
Partly Cloudy then Slight Chance Rain Showers
53°F
7 to 10 mph
SW
Wednesday
Apr 22
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
76°F
7 to 10 mph
SW
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.