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As of 03:42 CDT

Weather in Chambersburg, IL

38°Current weather

Chambersburg, Sunday, 18 October, 03:42

Clear. Feels like 33°. High 65°, low 38°.

Pressure30.45 inHg
Wind6.4 mph S
Humidity82%
Visibility6.2 mi
Dew point33°
Mon, 1967° / 41°0Mostly clear
67 °Mostly clear

Chambersburg, Monday, 19 October

Mostly clear. High 67°, low 41°.

Pressure30.39 inHg
Wind3.9 mph S
Humidity54%
Visibility6.2 mi
Dew point46°
Tue, 2068° / 45°0Partly cloudy
68 °Partly cloudy

Chambersburg, Tuesday, 20 October

Partly cloudy. High 68°, low 45°.

Pressure30.36 inHg
Wind3.7 mph SE
Humidity54%
Visibility6.2 mi
Dew point49°
Wed, 2171° / 46°0Overcast
71 °Overcast

Chambersburg, Wednesday, 21 October

Overcast. High 71°, low 46°.

Pressure30.30 inHg
Wind3.8 mph S
Humidity52%
Visibility6.2 mi
Dew point49°
Thu, 2271° / 50°0Clear
71 °Clear

Chambersburg, Thursday, 22 October

Clear. High 71°, low 50°.

Pressure30.27 inHg
Wind4.6 mph NE
Humidity48%
Visibility—
Dew point47°
Fri, 2370° / 51°0Clear
70 °Clear

Chambersburg, Friday, 23 October

Clear. High 70°, low 51°.

Pressure30.27 inHg
Wind9.4 mph SE
Humidity47%
Visibility—
Dew point45°
Sat, 2480° / 59°0Overcast
80 °Overcast

Chambersburg, Saturday, 24 October

Overcast. High 80°, low 59°.

Pressure30.21 inHg
Wind13.9 mph S
Humidity24%
Visibility—
Dew point36°
Sun, 2563° / 48°0.01Light rain
63 °Light rain

Chambersburg, Sunday, 25 October

Light rain. High 63°, low 48°.

Pressure30.45 inHg
Wind12.7 mph N
Humidity38%
Visibility—
Dew point34°
Mon, 2654° / 43°0.03Light rain
54 °Light rain

Chambersburg, Monday, 26 October

Light rain. High 54°, low 43°.

Pressure30.36 inHg
Wind7.6 mph SE
Humidity31%
Visibility—
Dew point23°
Tue, 2773° / 51°0Overcast
73 °Overcast

Chambersburg, Tuesday, 27 October

Overcast. High 73°, low 51°.

Pressure30.15 inHg
Wind7.8 mph SW
Humidity43%
Visibility—
Dew point45°
Wed, 2870° / 57°0Overcast
70 °Overcast

Chambersburg, Wednesday, 28 October

Overcast. High 70°, low 57°.

Pressure29.97 inHg
Wind11.7 mph S
Humidity49%
Visibility—
Dew point46°
Thu, 2972° / 59°0Overcast
72 °Overcast

Chambersburg, Thursday, 29 October

Overcast. High 72°, low 59°.

Pressure29.77 inHg
Wind5.8 mph SW
Humidity54%
Visibility—
Dew point52°
Fri, 3077° / 55°0Clear
77 °Clear

Chambersburg, Friday, 30 October

Clear. High 77°, low 55°.

Pressure29.80 inHg
Wind13.6 mph SW
Humidity45%
Visibility—
Dew point49°
Sat, 3180° / 61°0.14Light rain
80 °Light rain

Chambersburg, Saturday, 31 October

Light rain. High 80°, low 61°.

Pressure29.77 inHg
Wind15.3 mph SW
Humidity54%
Visibility—
Dew point57°
Sun, 0184° / 62°0Partly cloudy
84 °Partly cloudy

Chambersburg, Sunday, 1 November

Partly cloudy. High 84°, low 62°.

Pressure29.94 inHg
Wind14.4 mph SW
Humidity44%
Visibility—
Dew point55°
Mon, 0276° / 61°0Overcast
76 °Overcast

Chambersburg, Monday, 2 November

Overcast. High 76°, low 61°.

Pressure30.15 inHg
Wind11.1 mph NE
Humidity45%
Visibility—
Dew point50°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Chambersburg, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Chambersburg, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.