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As of 15:08 CDT

Weather in Chapman, IL

79°Current weather

Chapman, Saturday, 10 October, 15:08

Overcast. Feels like 79°. High 79°, low 56°.

Pressure30.00 inHg
Wind5.3 mph SE
Humidity41%
Visibility6.2 mi
Dew point54°
Sun, 1185° / 53°0Clear
85 °Clear

Chapman, Sunday, 11 October

Clear. High 85°, low 53°.

Pressure30.00 inHg
Wind1.5 mph NW
Humidity53%
Visibility6.2 mi
Dew point56°
Mon, 1288° / 63°0Clear
88 °Clear

Chapman, Monday, 12 October

Clear. High 88°, low 63°.

Pressure29.91 inHg
Wind9.8 mph SW
Humidity46%
Visibility6.2 mi
Dew point60°
Tue, 1389° / 70°0Clear
89 °Clear

Chapman, Tuesday, 13 October

Clear. High 89°, low 70°.

Pressure29.88 inHg
Wind8.6 mph W
Humidity53%
Visibility6.2 mi
Dew point66°
Wed, 1478° / 68°0.15Light rain
78 °Light rain

Chapman, Wednesday, 14 October

Light rain. High 78°, low 68°.

Pressure30.03 inHg
Wind1 mph NE
Humidity78%
Visibility6.2 mi
Dew point68°
Thu, 1565° / 57°0.46Rain
65 °Rain

Chapman, Thursday, 15 October

Rain. High 65°, low 57°.

Pressure30.18 inHg
Wind11.1 mph NE
Humidity74%
Visibility—
Dew point56°
Fri, 1664° / 45°0.14Rain
64 °Rain

Chapman, Friday, 16 October

Rain. High 64°, low 45°.

Pressure30.03 inHg
Wind25.8 mph W
Humidity34%
Visibility—
Dew point30°
Sat, 1743° / 34°0Overcast
43 °Overcast

Chapman, Saturday, 17 October

Overcast. High 43°, low 34°.

Pressure30.36 inHg
Wind20.6 mph NW
Humidity42%
Visibility—
Dew point19°
Sun, 1851° / 29°0Clear
51 °Clear

Chapman, Sunday, 18 October

Clear. High 51°, low 29°.

Pressure30.53 inHg
Wind7.5 mph NW
Humidity29%
Visibility—
Dew point16°
Mon, 1960° / 35°0Partly cloudy
60 °Partly cloudy

Chapman, Monday, 19 October

Partly cloudy. High 60°, low 35°.

Pressure30.42 inHg
Wind12 mph S
Humidity30%
Visibility—
Dew point23°
Tue, 2065° / 40°0Overcast
65 °Overcast

Chapman, Tuesday, 20 October

Overcast. High 65°, low 40°.

Pressure30.30 inHg
Wind15.1 mph S
Humidity29%
Visibility—
Dew point28°
Wed, 2156° / 49°0.23Rain
56 °Rain

Chapman, Wednesday, 21 October

Rain. High 56°, low 49°.

Pressure30.06 inHg
Wind16.6 mph S
Humidity91%
Visibility—
Dew point51°
Thu, 2268° / 44°0Clear
68 °Clear

Chapman, Thursday, 22 October

Clear. High 68°, low 44°.

Pressure30.21 inHg
Wind9.1 mph SW
Humidity40%
Visibility—
Dew point37°
Fri, 2368° / 49°0Clear
68 °Clear

Chapman, Friday, 23 October

Clear. High 68°, low 49°.

Pressure30.18 inHg
Wind8.5 mph N
Humidity29%
Visibility—
Dew point31°
Sat, 2468° / 47°0Overcast
68 °Overcast

Chapman, Saturday, 24 October

Overcast. High 68°, low 47°.

Pressure30.15 inHg
Wind8.7 mph SE
Humidity31%
Visibility—
Dew point33°
Sun, 2565° / 50°0.2Light rain
65 °Light rain

Chapman, Sunday, 25 October

Light rain. High 65°, low 50°.

Pressure29.83 inHg
Wind18.1 mph NW
Humidity83%
Visibility—
Dew point58°

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.