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As of 15:48 CDT

Weather in Chapman, IL

84°Current weather

Chapman, Sunday, 11 October, 15:48

Clear. Feels like 84°. High 84°, low 53°.

Pressure29.94 inHg
Wind4.2 mph S
Humidity44%
Visibility6.2 mi
Dew point60°
Mon, 1289° / 62°0Partly cloudy
89 °Partly cloudy

Chapman, Monday, 12 October

Partly cloudy. High 89°, low 62°.

Pressure29.94 inHg
Wind11.1 mph SW
Humidity46%
Visibility6.2 mi
Dew point60°
Tue, 1389° / 66°0Clear
89 °Clear

Chapman, Tuesday, 13 October

Clear. High 89°, low 66°.

Pressure29.91 inHg
Wind8.2 mph SW
Humidity52%
Visibility6.2 mi
Dew point66°
Wed, 1482° / 69°0.24Rain
82 °Rain

Chapman, Wednesday, 14 October

Rain. High 82°, low 69°.

Pressure30.00 inHg
Wind2 mph SW
Humidity77%
Visibility6.2 mi
Dew point70°
Thu, 1580° / 71°0.3Light rain
80 °Light rain

Chapman, Thursday, 15 October

Light rain. High 80°, low 71°.

Pressure30.00 inHg
Wind10.6 mph SW
Humidity83%
Visibility4.9 mi
Dew point72°
Fri, 1670° / 53°0.21Rain
70 °Rain

Chapman, Friday, 16 October

Rain. High 70°, low 53°.

Pressure30.39 inHg
Wind18.5 mph N
Humidity47%
Visibility—
Dew point41°
Sat, 1753° / 40°0Clear
53 °Clear

Chapman, Saturday, 17 October

Clear. High 53°, low 40°.

Pressure30.62 inHg
Wind9.9 mph NE
Humidity29%
Visibility—
Dew point20°
Sun, 1862° / 35°0Clear
62 °Clear

Chapman, Sunday, 18 October

Clear. High 62°, low 35°.

Pressure30.50 inHg
Wind13.8 mph S
Humidity22%
Visibility—
Dew point17°
Mon, 1969° / 42°0Clear
69 °Clear

Chapman, Monday, 19 October

Clear. High 69°, low 42°.

Pressure30.42 inHg
Wind13.2 mph S
Humidity22%
Visibility—
Dew point24°
Tue, 2072° / 49°0Overcast
72 °Overcast

Chapman, Tuesday, 20 October

Overcast. High 72°, low 49°.

Pressure30.30 inHg
Wind12 mph S
Humidity44%
Visibility—
Dew point45°
Wed, 2174° / 57°0Overcast
74 °Overcast

Chapman, Wednesday, 21 October

Overcast. High 74°, low 57°.

Pressure30.21 inHg
Wind16.4 mph S
Humidity47%
Visibility—
Dew point49°
Thu, 2268° / 63°0.04Light rain
68 °Light rain

Chapman, Thursday, 22 October

Light rain. High 68°, low 63°.

Pressure30.27 inHg
Wind13.2 mph S
Humidity81%
Visibility—
Dew point59°
Fri, 2376° / 63°0Overcast
76 °Overcast

Chapman, Friday, 23 October

Overcast. High 76°, low 63°.

Pressure30.12 inHg
Wind16.2 mph S
Humidity47%
Visibility—
Dew point51°
Sat, 2469° / 50°0.13Light rain
69 °Light rain

Chapman, Saturday, 24 October

Light rain. High 69°, low 50°.

Pressure30.06 inHg
Wind14.9 mph SW
Humidity88%
Visibility—
Dew point55°
Sun, 2553° / 44°0Overcast
53 °Overcast

Chapman, Sunday, 25 October

Overcast. High 53°, low 44°.

Pressure30.15 inHg
Wind12.8 mph N
Humidity52%
Visibility—
Dew point34°
Mon, 2659° / 44°0Overcast
59 °Overcast

Chapman, Monday, 26 October

Overcast. High 59°, low 44°.

Pressure30.03 inHg
Wind16.9 mph NW
Humidity39%
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 Chapman, 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 Chapman, 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.