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As of 22:59 CDT

Weather in Chambersburg, IL

47°Current weather

Chambersburg, Sunday, 18 October, 22:59

Clear. Feels like 44°. High 66°, low 39°.

Pressure30.36 inHg
Wind5.9 mph S
Humidity72%
Visibility6.2 mi
Dew point37°
Mon, 1969° / 41°0Partly cloudy
69 °Partly cloudy

Chambersburg, Monday, 19 October

Partly cloudy. High 69°, low 41°.

Pressure30.39 inHg
Wind4.3 mph S
Humidity51%
Visibility6.2 mi
Dew point44°
Tue, 2069° / 43°0Clear
69 °Clear

Chambersburg, Tuesday, 20 October

Clear. High 69°, low 43°.

Pressure30.36 inHg
Wind3.4 mph SE
Humidity51%
Visibility6.2 mi
Dew point47°
Wed, 2170° / 47°0Clear
70 °Clear

Chambersburg, Wednesday, 21 October

Clear. High 70°, low 47°.

Pressure30.30 inHg
Wind1.3 mph S
Humidity54%
Visibility6.2 mi
Dew point50°
Thu, 2270° / 50°0Clear
70 °Clear

Chambersburg, Thursday, 22 October

Clear. High 70°, low 50°.

Pressure30.33 inHg
Wind3.2 mph E
Humidity57%
Visibility6.2 mi
Dew point51°
Fri, 2368° / 49°0Clear
68 °Clear

Chambersburg, Friday, 23 October

Clear. High 68°, low 49°.

Pressure30.33 inHg
Wind7.4 mph SE
Humidity50%
Visibility—
Dew point46°
Sat, 2474° / 48°0Overcast
74 °Overcast

Chambersburg, Saturday, 24 October

Overcast. High 74°, low 48°.

Pressure30.33 inHg
Wind11.9 mph S
Humidity43%
Visibility—
Dew point44°
Sun, 2568° / 54°0Partly cloudy
68 °Partly cloudy

Chambersburg, Sunday, 25 October

Partly cloudy. High 68°, low 54°.

Pressure30.33 inHg
Wind10.8 mph SW
Humidity21%
Visibility—
Dew point25°
Mon, 2667° / 51°0Overcast
67 °Overcast

Chambersburg, Monday, 26 October

Overcast. High 67°, low 51°.

Pressure30.18 inHg
Wind14.8 mph S
Humidity47%
Visibility—
Dew point45°
Tue, 2763° / 56°0.14Light rain
63 °Light rain

Chambersburg, Tuesday, 27 October

Light rain. High 63°, low 56°.

Pressure30.12 inHg
Wind10.6 mph S
Humidity56%
Visibility—
Dew point45°
Wed, 2856° / 55°0.24Light rain
56 °Light rain

Chambersburg, Wednesday, 28 October

Light rain. High 56°, low 55°.

Pressure30.12 inHg
Wind6.6 mph SE
Humidity93%
Visibility—
Dew point54°
Thu, 2971° / 55°0.13Light rain
71 °Light rain

Chambersburg, Thursday, 29 October

Light rain. High 71°, low 55°.

Pressure29.97 inHg
Wind13.6 mph S
Humidity79%
Visibility—
Dew point55°
Fri, 3073° / 59°0.07Light rain
73 °Light rain

Chambersburg, Friday, 30 October

Light rain. High 73°, low 59°.

Pressure29.83 inHg
Wind18 mph S
Humidity76%
Visibility—
Dew point63°
Sat, 3166° / 55°0Overcast
66 °Overcast

Chambersburg, Saturday, 31 October

Overcast. High 66°, low 55°.

Pressure30.00 inHg
Wind13 mph SE
Humidity33%
Visibility—
Dew point33°
Sun, 0162° / 43°0.13Light rain
62 °Light rain

Chambersburg, Sunday, 1 November

Light rain. High 62°, low 43°.

Pressure29.94 inHg
Wind22.4 mph NW
Humidity46%
Visibility—
Dew point34°
Mon, 0264° / 43°0Clear
64 °Clear

Chambersburg, Monday, 2 November

Clear. High 64°, low 43°.

Pressure30.03 inHg
Wind9.8 mph SW
Humidity35%
Visibility—
Dew point31°

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.