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As of 18:12 CDT

Weather in Chesterfield, IL

65°Current weather

Chesterfield, Monday, 19 October, 18:12

Overcast. Feels like 64°. High 69°, low 40°.

Pressure30.30 inHg
Wind2.6 mph S
Humidity49%
Visibility6.2 mi
Dew point46°
Tue, 2071° / 44°0Clear
71 °Clear

Chesterfield, Tuesday, 20 October

Clear. High 71°, low 44°.

Pressure30.36 inHg
Wind2.6 mph SE
Humidity49%
Visibility6.2 mi
Dew point47°
Wed, 2171° / 45°0Clear
71 °Clear

Chesterfield, Wednesday, 21 October

Clear. High 71°, low 45°.

Pressure30.27 inHg
Wind1.9 mph SW
Humidity49%
Visibility6.2 mi
Dew point48°
Thu, 2271° / 48°0Clear
71 °Clear

Chesterfield, Thursday, 22 October

Clear. High 71°, low 48°.

Pressure30.30 inHg
Wind4.7 mph E
Humidity46%
Visibility6.2 mi
Dew point48°
Fri, 2368° / 51°0Mostly clear
68 °Mostly clear

Chesterfield, Friday, 23 October

Mostly clear. High 68°, low 51°.

Pressure30.30 inHg
Wind7.3 mph SE
Humidity53%
Visibility6.2 mi
Dew point48°
Sat, 2469° / 48°0Partly cloudy
69 °Partly cloudy

Chesterfield, Saturday, 24 October

Partly cloudy. High 69°, low 48°.

Pressure30.39 inHg
Wind7.5 mph SE
Humidity40%
Visibility—
Dew point39°
Sun, 2576° / 52°0Overcast
76 °Overcast

Chesterfield, Sunday, 25 October

Overcast. High 76°, low 52°.

Pressure30.33 inHg
Wind8.7 mph SW
Humidity37%
Visibility—
Dew point42°
Mon, 2664° / 57°0Overcast
64 °Overcast

Chesterfield, Monday, 26 October

Overcast. High 64°, low 57°.

Pressure30.30 inHg
Wind7.8 mph NE
Humidity76%
Visibility—
Dew point55°
Tue, 2758° / 47°0.07Light rain
58 °Light rain

Chesterfield, Tuesday, 27 October

Light rain. High 58°, low 47°.

Pressure30.30 inHg
Wind11.6 mph N
Humidity84%
Visibility—
Dew point48°
Wed, 2846° / 33°0Clear
46 °Clear

Chesterfield, Wednesday, 28 October

Clear. High 46°, low 33°.

Pressure30.50 inHg
Wind13.8 mph N
Humidity27%
Visibility—
Dew point12°
Thu, 2951° / 29°0Clear
51 °Clear

Chesterfield, Thursday, 29 October

Clear. High 51°, low 29°.

Pressure30.47 inHg
Wind6.3 mph N
Humidity26%
Visibility—
Dew point13°
Fri, 3060° / 35°0Mostly clear
60 °Mostly clear

Chesterfield, Friday, 30 October

Mostly clear. High 60°, low 35°.

Pressure30.30 inHg
Wind12.9 mph S
Humidity19%
Visibility—
Dew point13°
Sat, 3167° / 44°0Overcast
67 °Overcast

Chesterfield, Saturday, 31 October

Overcast. High 67°, low 44°.

Pressure30.15 inHg
Wind14.5 mph SW
Humidity19%
Visibility—
Dew point19°
Sun, 0164° / 49°0Overcast
64 °Overcast

Chesterfield, Sunday, 1 November

Overcast. High 64°, low 49°.

Pressure30.12 inHg
Wind8.4 mph SW
Humidity25%
Visibility—
Dew point25°
Mon, 0263° / 45°0.04Light rain
63 °Light rain

Chesterfield, Monday, 2 November

Light rain. High 63°, low 45°.

Pressure30.12 inHg
Wind13.3 mph N
Humidity52%
Visibility—
Dew point43°
Tue, 0359° / 40°0Mostly clear
59 °Mostly clear

Chesterfield, Tuesday, 3 November

Mostly clear. High 59°, low 40°.

Pressure30.12 inHg
Wind7.2 mph SE
Humidity49%
Visibility—
Dew point36°

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 Chesterfield, 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 Chesterfield, 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.