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As of 15:39 CDT

Weather in Chapman, IL

90°Current weather

Chapman, Saturday, 8 August, 15:39

Clear. Feels like 101°. High 90°, low 70°.

Pressure30.00 inHg
Wind5.2 mph SW
Humidity63%
Visibility6.2 mi
Dew point76°
Sun, 0994° / 73°0Overcast
94 °Overcast

Chapman, Sunday, 9 August

Overcast. High 94°, low 73°.

Pressure29.97 inHg
Wind13.8 mph S
Humidity68%
Visibility6.2 mi
Dew point74°
Mon, 1093° / 74°0Clear
93 °Clear

Chapman, Monday, 10 August

Clear. High 93°, low 74°.

Pressure29.97 inHg
Wind13.6 mph SW
Humidity64%
Visibility6.2 mi
Dew point74°
Tue, 1188° / 74°0.01Light rain
88 °Light rain

Chapman, Tuesday, 11 August

Light rain. High 88°, low 74°.

Pressure29.88 inHg
Wind14.6 mph SW
Humidity61%
Visibility6.2 mi
Dew point73°
Wed, 1287° / 71°0.11Light rain
87 °Light rain

Chapman, Wednesday, 12 August

Light rain. High 87°, low 71°.

Pressure29.83 inHg
Wind4 mph N
Humidity65%
Visibility6.2 mi
Dew point73°
Thu, 1379° / 70°0.59Rain
79 °Rain

Chapman, Thursday, 13 August

Rain. High 79°, low 70°.

Pressure29.88 inHg
Wind7.6 mph SE
Humidity83%
Visibility—
Dew point72°
Fri, 1476° / 62°0.01Light rain
76 °Light rain

Chapman, Friday, 14 August

Light rain. High 76°, low 62°.

Pressure30.15 inHg
Wind11.5 mph NE
Humidity51%
Visibility—
Dew point54°
Sat, 1575° / 56°0Partly cloudy
75 °Partly cloudy

Chapman, Saturday, 15 August

Partly cloudy. High 75°, low 56°.

Pressure30.30 inHg
Wind7.8 mph E
Humidity55%
Visibility—
Dew point54°
Sun, 1678° / 58°0.05Light rain
78 °Light rain

Chapman, Sunday, 16 August

Light rain. High 78°, low 58°.

Pressure30.18 inHg
Wind11.1 mph S
Humidity56%
Visibility—
Dew point59°
Mon, 1789° / 68°0.15Light rain
89 °Light rain

Chapman, Monday, 17 August

Light rain. High 89°, low 68°.

Pressure29.94 inHg
Wind17.5 mph S
Humidity71%
Visibility—
Dew point72°
Tue, 1886° / 72°0Overcast
86 °Overcast

Chapman, Tuesday, 18 August

Overcast. High 86°, low 72°.

Pressure29.97 inHg
Wind9.3 mph N
Humidity63%
Visibility—
Dew point70°
Wed, 1989° / 70°0Partly cloudy
89 °Partly cloudy

Chapman, Wednesday, 19 August

Partly cloudy. High 89°, low 70°.

Pressure29.91 inHg
Wind7.4 mph SE
Humidity64%
Visibility—
Dew point70°
Thu, 2084° / 72°1.64Heavy rain
84 °Heavy rain

Chapman, Thursday, 20 August

Heavy rain. High 84°, low 72°.

Pressure29.88 inHg
Wind8.1 mph SE
Humidity70%
Visibility—
Dew point70°
Fri, 2183° / 68°0.03Light rain
83 °Light rain

Chapman, Friday, 21 August

Light rain. High 83°, low 68°.

Pressure29.94 inHg
Wind7.8 mph NE
Humidity72%
Visibility—
Dew point66°
Sat, 2283° / 64°0Overcast
83 °Overcast

Chapman, Saturday, 22 August

Overcast. High 83°, low 64°.

Pressure29.94 inHg
Wind17.4 mph NE
Humidity58%
Visibility—
Dew point63°
Sun, 2374° / 59°0.05Light rain
74 °Light rain

Chapman, Sunday, 23 August

Light rain. High 74°, low 59°.

Pressure30.15 inHg
Wind12.8 mph NE
Humidity68%
Visibility—
Dew point54°

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.