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As of 21:58 CDT

Weather in Chesterfield, IL

45°Current weather

Chesterfield, Saturday, 17 October, 21:58

Clear. Feels like 43°. High 58°, low 39°.

Pressure30.47 inHg
Wind4 mph SE
Humidity77%
Visibility6.2 mi
Dew point38°
Sun, 1863° / 41°0Clear
63 °Clear

Chesterfield, Sunday, 18 October

Clear. High 63°, low 41°.

Pressure30.47 inHg
Wind9.2 mph S
Humidity46%
Visibility6.2 mi
Dew point38°
Mon, 1967° / 43°0Mostly clear
67 °Mostly clear

Chesterfield, Monday, 19 October

Mostly clear. High 67°, low 43°.

Pressure30.39 inHg
Wind2.1 mph S
Humidity50%
Visibility6.2 mi
Dew point44°
Tue, 2068° / 45°0Mostly clear
68 °Mostly clear

Chesterfield, Tuesday, 20 October

Mostly clear. High 68°, low 45°.

Pressure30.39 inHg
Wind1 mph SE
Humidity50%
Visibility6.2 mi
Dew point47°
Wed, 2170° / 46°0Clear
70 °Clear

Chesterfield, Wednesday, 21 October

Clear. High 70°, low 46°.

Pressure30.27 inHg
Wind2.5 mph S
Humidity51%
Visibility6.2 mi
Dew point48°
Thu, 2272° / 50°0Clear
72 °Clear

Chesterfield, Thursday, 22 October

Clear. High 72°, low 50°.

Pressure30.24 inHg
Wind5.7 mph NE
Humidity44%
Visibility—
Dew point45°
Fri, 2373° / 51°0Mostly clear
73 °Mostly clear

Chesterfield, Friday, 23 October

Mostly clear. High 73°, low 51°.

Pressure30.27 inHg
Wind8.9 mph SE
Humidity44%
Visibility—
Dew point45°
Sat, 2477° / 57°0Overcast
77 °Overcast

Chesterfield, Saturday, 24 October

Overcast. High 77°, low 57°.

Pressure30.24 inHg
Wind12.4 mph S
Humidity25%
Visibility—
Dew point35°
Sun, 2563° / 50°0Overcast
63 °Overcast

Chesterfield, Sunday, 25 October

Overcast. High 63°, low 50°.

Pressure30.39 inHg
Wind14 mph NW
Humidity44%
Visibility—
Dew point39°
Mon, 2661° / 40°0Overcast
61 °Overcast

Chesterfield, Monday, 26 October

Overcast. High 61°, low 40°.

Pressure30.42 inHg
Wind6.6 mph N
Humidity28%
Visibility—
Dew point23°
Tue, 2768° / 45°0Overcast
68 °Overcast

Chesterfield, Tuesday, 27 October

Overcast. High 68°, low 45°.

Pressure30.30 inHg
Wind10.1 mph S
Humidity30%
Visibility—
Dew point30°
Wed, 2865° / 53°0Overcast
65 °Overcast

Chesterfield, Wednesday, 28 October

Overcast. High 65°, low 53°.

Pressure30.12 inHg
Wind13.2 mph S
Humidity48%
Visibility—
Dew point42°
Thu, 2972° / 59°0.05Light rain
72 °Light rain

Chesterfield, Thursday, 29 October

Light rain. High 72°, low 59°.

Pressure29.85 inHg
Wind16.9 mph S
Humidity40%
Visibility—
Dew point44°
Fri, 3069° / 60°0.01Light rain
69 °Light rain

Chesterfield, Friday, 30 October

Light rain. High 69°, low 60°.

Pressure29.97 inHg
Wind10.7 mph SW
Humidity71%
Visibility—
Dew point56°
Sat, 3169° / 56°0.83Heavy rain
69 °Heavy rain

Chesterfield, Saturday, 31 October

Heavy rain. High 69°, low 56°.

Pressure29.94 inHg
Wind14 mph SE
Humidity69%
Visibility—
Dew point57°
Sun, 0168° / 55°0.15Light rain
68 °Light rain

Chesterfield, Sunday, 1 November

Light rain. High 68°, low 55°.

Pressure29.94 inHg
Wind15.7 mph W
Humidity37%
Visibility—
Dew point39°

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.