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Chesterfield IL Weather - Clear - 50°F
Clear
50°F
Updated 4:06 am
Feels Like 56°F
Humidity 91%
Wind N 0 mph
Barometer  29.99 in
Dew Point 48°F
Chesterfield IL Weather - Clear - 10°C
Clear
10°C
Updated 4:06 am
Feels Like 13°C
Humidity 91%
Wind N 0 km/h
Barometer  101.6 kPa
Dew Point 9°C
Chesterfield, IL Weather and Current Conditionschesterfield il weather forecast

Chesterfield, IL Weather Forecast

Chesterfield Illinois WeatherChesterfield, Illinois Weather Weather Forecast
14 day API weather forecast for Chesterfield, Illinois. Note: The 7-day weather forecast for Chesterfield, IL is the most reliable and accurate weather forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days ahead.
Chesterfield, IL Weather Forecast Dated: 406 AM Sun Oct 11 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and a stable pattern will dominate.

Sunday, October 11, 2026

Mid-Morning
Chesterfield Weather - 2026-10-11 - Morning - Sunny
65°F 18°C
Sunny
Mid-Afternoon
Chesterfield Weather - 2026-10-11 - Afternoon - Sunny
86°F 30°C
Sunny
Early-Evening
Chesterfield Weather - 2026-10-11 - Evening - Sunny
75°F 24°C
Sunny
Warm and summery near 86°F 30°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure.

Monday, October 12, 2026

Mid-Morning
Chesterfield Weather - 2026-10-12 - Morning - Overcast
75°F 24°C
Overcast
Mid-Afternoon
Chesterfield Weather - 2026-10-12 - Afternoon - Sunny
93°F 34°C
Sunny
Early-Evening
Chesterfield Weather - 2026-10-12 - Evening - Sunny
83°F 28°C
Sunny
Hot and sweltering around 93°F 34°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds turning from the SW to the SSW at 10 mph 17 km/h. Gusts up to 25 mph 41 km/h.

Tuesday, October 13, 2026

Mid-Morning
Chesterfield Weather - 2026-10-13 - Morning - Sunny
77°F 25°C
Sunny
Mid-Afternoon
Chesterfield Weather - 2026-10-13 - Afternoon - Sunny
94°F 34°C
Sunny
Early-Evening
Chesterfield Weather - 2026-10-13 - Evening - Scattered Showers
85°F 29°C
Scattered Showers
Very hot with a high of 94°F 34°C, feeling closer to 97°F 36°C in the humidity, locally heavy downpours at times, with steady humidity and steady pressure. Winds blowing from the WSW at 13 mph 20 km/h.

Wednesday, October 14, 2026

Mid-Morning
Chesterfield Weather - 2026-10-14 - Morning - Overcast
72°F 22°C
Overcast
Mid-Afternoon
Chesterfield Weather - 2026-10-14 - Afternoon - Overcast
71°F 22°C
Overcast
Early-Evening
Chesterfield Weather - 2026-10-14 - Evening - Overcast
66°F 19°C
Overcast
Mild temperatures up to 71°F 22°C, overcast throughout the day, with steady humidity and steady pressure. Winds moving from the WSW to the NE at 11 mph 18 km/h.

Thursday, October 15, 2026

Mid-Morning
Chesterfield Weather - 2026-10-15 - Morning - Drizzle
59°F 15°C
Drizzle
Mid-Afternoon
Chesterfield Weather - 2026-10-15 - Afternoon - Rain
59°F 15°C
Rain
Early-Evening
Chesterfield Weather - 2026-10-15 - Evening - Light Rain
62°F 17°C
Light Rain
Refreshing around 59°F 15°C, persistent showers off and on through the day, with increasing humidity and barometric pressure falling. Winds swinging from the ENE to the WNW at 5 mph 8 km/h.

Friday, October 16, 2026

Mid-Morning
Chesterfield Weather - 2026-10-16 - Morning - Scattered Showers
54°F 12°C
Scattered Showers
Mid-Afternoon
Chesterfield Weather - 2026-10-16 - Afternoon - Partly Cloudy
53°F 12°C
Partly Cloudy
Early-Evening
Chesterfield Weather - 2026-10-16 - Evening - Cloudy
44°F 7°C
Cloudy
Cool and brisk at 53°F 12°C, locally heavy downpours at times, with lower humidity and barometric pressure rising. Winds shifting from the WNW to the NW at 21 mph 34 km/h. Gusts up to 36 mph 57 km/h.

Saturday, October 17, 2026

Mid-Morning
Chesterfield Weather - 2026-10-17 - Morning - Sunny
35°F 1°C
Sunny
Mid-Afternoon
Chesterfield Weather - 2026-10-17 - Afternoon - Partly Cloudy
43°F 6°C
Partly Cloudy
Early-Evening
Chesterfield Weather - 2026-10-17 - Evening - Sunny
38°F 3°C
Sunny
Nippy around 43°F 6°C, partly cloudy through the afternoon, turning sunny this evening, with steady humidity and steady pressure. Winds decreasing from NNW 20 mph 32 km/h to NNW 11 mph 18 km/h. Gusts up to 23 mph 37 km/h.

Sunday, October 18, 2026

Mid-Morning
Chesterfield Weather - 2026-10-18 - Morning - Sunny
37°F 3°C
Sunny
Mid-Afternoon
Chesterfield Weather - 2026-10-18 - Afternoon - Sunny
49°F 9°C
Sunny
Early-Evening
Chesterfield Weather - 2026-10-18 - Evening - Sunny
42°F 6°C
Sunny
Crisp with a high near 49°F 9°C, sunny throughout the day, with steady humidity and barometric pressure falling.

Monday, October 19, 2026

Mid-Morning
Chesterfield Weather - 2026-10-19 - Morning - Sunny
44°F 6°C
Sunny
Mid-Afternoon
Chesterfield Weather - 2026-10-19 - Afternoon - Sunny
60°F 16°C
Sunny
Early-Evening
Chesterfield Weather - 2026-10-19 - Evening - Sunny
51°F 11°C
Sunny
Refreshing around 60°F 16°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds out of the SSW at 13 mph 20 km/h.

Tuesday, October 20, 2026

Mid-Morning
Chesterfield Weather - 2026-10-20 - Morning - Sunny
50°F 10°C
Sunny
Mid-Afternoon
Chesterfield Weather - 2026-10-20 - Afternoon - Sunny
67°F 20°C
Sunny
Early-Evening
Chesterfield Weather - 2026-10-20 - Evening - Sunny
57°F 14°C
Sunny
Mildly cool near 67°F 20°C, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the SSW to the S at 10 mph 15 km/h. Gusts up to 23 mph 37 km/h.

Wednesday, October 21, 2026

Mid-Morning
Chesterfield Weather - 2026-10-21 - Morning - Overcast
55°F 13°C
Overcast
Mid-Afternoon
Chesterfield Weather - 2026-10-21 - Afternoon - Overcast
69°F 21°C
Overcast
Early-Evening
Chesterfield Weather - 2026-10-21 - Evening - Overcast
61°F 16°C
Overcast
Pleasant near 69°F 21°C, overcast throughout the day, with steady humidity and steady pressure. Winds SSW at 10 mph 17 km/h.

Thursday, October 22, 2026

Mid-Morning
Chesterfield Weather - 2026-10-22 - Morning - Cloudy
59°F 15°C
Cloudy
Mid-Afternoon
Chesterfield Weather - 2026-10-22 - Afternoon - Sunny
70°F 21°C
Sunny
Early-Evening
Chesterfield Weather - 2026-10-22 - Evening - Partly Cloudy
63°F 17°C
Partly Cloudy
Comfortable with temperatures reaching 70°F 21°C, partly cloudy through the afternoon, turning sunny this evening, with increasing humidity and steady pressure.

Friday, October 23, 2026

Mid-Morning
Chesterfield Weather - 2026-10-23 - Morning - Sunny
59°F 15°C
Sunny
Mid-Afternoon
Chesterfield Weather - 2026-10-23 - Afternoon - Sunny
72°F 22°C
Sunny
Early-Evening
Chesterfield Weather - 2026-10-23 - Evening - Sunny
65°F 18°C
Sunny
Enjoyable around 72°F 22°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling. Winds shifting from the SE to the S at 11 mph 18 km/h. Gusts up to 24 mph 38 km/h.

Saturday, October 24, 2026

Mid-Morning
Chesterfield Weather - 2026-10-24 - Morning - Light Showers
62°F 17°C
Light Showers
Mid-Afternoon
Chesterfield Weather - 2026-10-24 - Afternoon - Sunny
64°F 18°C
Sunny
Early-Evening
Chesterfield Weather - 2026-10-24 - Evening - Sunny
55°F 13°C
Sunny
Mildly cool near 64°F 18°C, scattered morning showers before drying out later, with lower humidity and barometric pressure rising. Winds turning from the W to the NNW at 12 mph 19 km/h. Gusts up to 23 mph 37 km/h.

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Weather by the Numbers

Sun, 11th
Chesterfield IL Weather - Sunday, Oct 11, 2026 - Sunny
Hi: 87°F 30°C
Lo: 55°F 13°C
Sunrise 07:06 AM
Sunset 06:27 PM
Wind SW 5 mph8 km/h
Dew Point 52°F11°C
uv Index 5
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 39%
Mon, 12th
Chesterfield IL Weather - Monday, Oct 12, 2026 - Partly Cloudy
Hi: 93°F 34°C
Lo: 66°F 19°C
Sunrise 07:07 AM
Sunset 06:25 PM
Wind SW 15 mph23 km/h
Dew Point 57°F14°C
uv Index 5
Barometric Pressure 29.88 in1012 mb
POP 4% *
Humidity 36%
Tue, 13th
Chesterfield IL Weather - Tuesday, Oct 13, 2026 - Moderate Rain At Times
Hi: 94°F 34°C
Lo: 70°F 21°C
Sunrise 07:08 AM
Sunset 06:24 PM
Wind WSW 11 mph18 km/h
Dew Point 65°F18°C
uv Index 7
Barometric Pressure 29.88 in1012 mb
POP 36% *
Humidity 47%
Wed, 14th
Chesterfield IL Weather - Wednesday, Oct 14, 2026 - Patchy Rain Nearby
Hi: 77°F 25°C
Lo: 65°F 18°C
Sunrise 07:09 AM
Sunset 06:23 PM
Wind W 10 mph16 km/h
Dew Point 69°F21°C
uv Index 6
Barometric Pressure 30 in1016 mb
POP 30% *
Humidity 76%
Thu, 15th
Chesterfield IL Weather - Thursday, Oct 15, 2026 - Moderate Rain
Hi: 64°F 18°C
Lo: 58°F 14°C
Sunrise 07:10 AM
Sunset 06:21 PM
Wind E 10 mph16 km/h
Dew Point 57°F14°C
uv Index 3
Barometric Pressure 30.09 in1019 mb
POP 89% *
Humidity 95%
Fri, 16th
Chesterfield IL Weather - Friday, Oct 16, 2026 - Sunny
Hi: 62°F 17°C
Lo: 38°F 4°C
Sunrise 07:11 AM
Sunset 06:20 PM
Wind WNW 23 mph37 km/h
Dew Point 37°F3°C
uv Index 4
Barometric Pressure 30.06 in1018 mb
POP 6% *
Humidity 53%
Sat, 17th
Chesterfield IL Weather - Saturday, Oct 17, 2026 - Cloudy
Hi: 43°F 6°C
Lo: 32°F 0°C
Sunrise 07:12 AM
Sunset 06:18 PM
Wind NNW 20 mph32 km/h
Dew Point 20°F-7°C
uv Index 1
Barometric Pressure 30.45 in1031 mb
POP 5% *
Humidity 44%
Sun, 18th
Chesterfield IL Weather - Sunday, Oct 18, 2026 - Sunny
Hi: 50°F 10°C
Lo: 29°F -2°C
Sunrise 07:14 AM
Sunset 06:17 PM
Wind W 4 mph6 km/h
Dew Point 19°F-7°C
uv Index 3
Barometric Pressure 30.56 in1035 mb
POP 1% *
Humidity 36%
Mon, 19th
Chesterfield IL Weather - Monday, Oct 19, 2026 - Sunny
Hi: 61°F 16°C
Lo: 36°F 2°C
Sunrise 07:15 AM
Sunset 06:15 PM
Wind SSW 14 mph22 km/h
Dew Point 25°F-4°C
uv Index 4
Barometric Pressure 30.36 in1028 mb
POP 1% *
Humidity 32%
Tue, 20th
Chesterfield IL Weather - Tuesday, Oct 20, 2026 - Sunny
Hi: 68°F 20°C
Lo: 42°F 5°C
Sunrise 07:16 AM
Sunset 06:14 PM
Wind SSW 12 mph19 km/h
Dew Point 30°F-1°C
uv Index 5
Barometric Pressure 30.24 in1024 mb
POP 1% *
Humidity 30%
Wed, 21st
Chesterfield IL Weather - Wednesday, Oct 21, 2026 - Overcast
Hi: 70°F 21°C
Lo: 47°F 8°C
Sunrise 07:17 AM
Sunset 06:13 PM
Wind SSW 12 mph19 km/h
Dew Point 35°F2°C
uv Index 4
Barometric Pressure 30.24 in1024 mb
POP 9% *
Humidity 35%
Thu, 22nd
Chesterfield IL Weather - Thursday, Oct 22, 2026 - Sunny
Hi: 71°F 22°C
Lo: 53°F 12°C
Sunrise 07:18 AM
Sunset 06:11 PM
Wind WNW 2 mph4 km/h
Dew Point 51°F10°C
uv Index 5
Barometric Pressure 30.33 in1027 mb
POP 4% *
Humidity 59%
Fri, 23rd
Chesterfield IL Weather - Friday, Oct 23, 2026 - Sunny
Hi: 73°F 23°C
Lo: 52°F 11°C
Sunrise 07:19 AM
Sunset 06:10 PM
Wind SSE 11 mph17 km/h
Dew Point 51°F11°C
uv Index 6
Barometric Pressure 30.3 in1026 mb
POP 3% *
Humidity 55%
Sat, 24th
Chesterfield IL Weather - Saturday, Oct 24, 2026 - Patchy Rain Nearby
Hi: 65°F 19°C
Lo: 48°F 9°C
Sunrise 07:20 AM
Sunset 06:09 PM
Wind WNW 14 mph22 km/h
Dew Point 48°F9°C
uv Index 4
Barometric Pressure 30.15 in1021 mb
POP 5% *
Humidity 57%
* POP = Probability of Precipitation. Data for 12:00 PM.