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Clayton IL Weather - Sunny - 55°F
Sunny
55°F
Updated 8:16 am
Feels Like 51°F
Humidity 93%
Wind NE 9 mph
Barometer  30.3 in
Dew Point 53°F
Clayton IL Weather - Sunny - 13°C
Sunny
13°C
Updated 8:16 am
Feels Like 11°C
Humidity 93%
Wind NE 14 km/h
Barometer  102.6 kPa
Dew Point 12°C
Clayton, IL Weather and Current Conditionsclayton il weather forecast

Clayton, IL Weather Forecast

Clayton Illinois WeatherClayton, Illinois Weather Weather Forecast
14 day API weather forecast for Clayton, Illinois. Note: The 7-day weather forecast for Clayton, 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.
Clayton, IL Weather Forecast Dated: 816 AM Wed Sep 23 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. generally humid conditions and no major pressure swings will dominate.

Wednesday, September 23, 2026

Mid-Morning
Clayton Weather - 2026-09-23 - Morning - Sunny
58°F 14°C
Sunny
Mid-Afternoon
Clayton Weather - 2026-09-23 - Afternoon - Sunny
72°F 22°C
Sunny
Early-Evening
Clayton Weather - 2026-09-23 - Evening - Sunny
64°F 18°C
Sunny
Pleasant near 72°F 22°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds turning from the NE to the ENE at 11 mph 17 km/h.

Thursday, September 24, 2026

Mid-Morning
Clayton Weather - 2026-09-24 - Morning - Sunny
59°F 15°C
Sunny
Mid-Afternoon
Clayton Weather - 2026-09-24 - Afternoon - Sunny
73°F 23°C
Sunny
Early-Evening
Clayton Weather - 2026-09-24 - Evening - Overcast
68°F 20°C
Overcast
Comfortable with temperatures reaching 73°F 23°C, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure.

Friday, September 25, 2026

Mid-Morning
Clayton Weather - 2026-09-25 - Morning - Overcast
63°F 17°C
Overcast
Mid-Afternoon
Clayton Weather - 2026-09-25 - Afternoon - Scattered Showers
68°F 20°C
Scattered Showers
Early-Evening
Clayton Weather - 2026-09-25 - Evening - Overcast
65°F 18°C
Overcast
Enjoyable around 68°F 20°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds switching from the ESE to the E at 8 mph 12 km/h.

Saturday, September 26, 2026

Mid-Morning
Clayton Weather - 2026-09-26 - Morning - Scattered Showers
59°F 15°C
Scattered Showers
Mid-Afternoon
Clayton Weather - 2026-09-26 - Afternoon - Light Showers
59°F 15°C
Light Showers
Early-Evening
Clayton Weather - 2026-09-26 - Evening - Overcast
56°F 14°C
Overcast
Cool with a high near 59°F 15°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds E at 8 mph 13 km/h.

Sunday, September 27, 2026

Mid-Morning
Clayton Weather - 2026-09-27 - Morning - Drizzle
54°F 12°C
Drizzle
Mid-Afternoon
Clayton Weather - 2026-09-27 - Afternoon - Light Showers
58°F 15°C
Light Showers
Early-Evening
Clayton Weather - 2026-09-27 - Evening - Scattered Showers
61°F 16°C
Scattered Showers
Refreshing around 58°F 15°C, scattered downpours possible, with steady humidity and barometric pressure falling. Winds swinging from the E to the ENE at 6 mph 9 km/h.

Monday, September 28, 2026

Mid-Morning
Clayton Weather - 2026-09-28 - Morning - Partly Cloudy
61°F 16°C
Partly Cloudy
Mid-Afternoon
Clayton Weather - 2026-09-28 - Afternoon - Sunny
74°F 23°C
Sunny
Early-Evening
Clayton Weather - 2026-09-28 - Evening - Sunny
69°F 21°C
Sunny
Pleasant near 74°F 23°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds shifting from the E to the ESE at 9 mph 14 km/h.

Tuesday, September 29, 2026

Mid-Morning
Clayton Weather - 2026-09-29 - Morning - Partly Cloudy
61°F 16°C
Partly Cloudy
Mid-Afternoon
Clayton Weather - 2026-09-29 - Afternoon - Overcast
72°F 22°C
Overcast
Early-Evening
Clayton Weather - 2026-09-29 - Evening - Scattered Showers
69°F 21°C
Scattered Showers
Comfortable with temperatures reaching 72°F 22°C, periods of heavy rain and gusty conditions, with steady humidity and barometric pressure falling. Winds turning from the SE to the SSE at 11 mph 16 km/h. Gusts up to 23 mph 36 km/h.

Wednesday, September 30, 2026

Mid-Morning
Clayton Weather - 2026-09-30 - Morning - Scattered Showers
55°F 13°C
Scattered Showers
Mid-Afternoon
Clayton Weather - 2026-09-30 - Afternoon - Partly Cloudy
58°F 15°C
Partly Cloudy
Early-Evening
Clayton Weather - 2026-09-30 - Evening - Overcast
57°F 14°C
Overcast
Cool with a high near 58°F 15°C, scattered downpours possible, with lower humidity and steady pressure. Winds out of the WNW at 19 mph 31 km/h. Gusts up to 31 mph 50 km/h.

Thursday, October 1, 2026

Mid-Morning
Clayton Weather - 2026-10-01 - Morning - Sunny
53°F 12°C
Sunny
Mid-Afternoon
Clayton Weather - 2026-10-01 - Afternoon - Sunny
67°F 20°C
Sunny
Early-Evening
Clayton Weather - 2026-10-01 - Evening - Sunny
62°F 17°C
Sunny
Refreshing around 67°F 20°C, sunny throughout the day, with steady humidity and steady pressure. Winds tapering down from W 14 mph 23 km/h to WSW 6 mph 9 km/h.

Friday, October 2, 2026

Mid-Morning
Clayton Weather - 2026-10-02 - Morning - Partly Cloudy
65°F 19°C
Partly Cloudy
Mid-Afternoon
Clayton Weather - 2026-10-02 - Afternoon - Sunny
84°F 29°C
Sunny
Early-Evening
Clayton Weather - 2026-10-02 - Evening - Sunny
75°F 24°C
Sunny
Very warm with a high of 84°F 29°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds SW at 15 mph 25 km/h. Gusts up to 20 mph 33 km/h.

Saturday, October 3, 2026

Mid-Morning
Clayton Weather - 2026-10-03 - Morning - Scattered Showers
62°F 17°C
Scattered Showers
Mid-Afternoon
Clayton Weather - 2026-10-03 - Afternoon - Light Showers
69°F 21°C
Light Showers
Early-Evening
Clayton Weather - 2026-10-03 - Evening - Cloudy
63°F 17°C
Cloudy
Pleasant near 69°F 21°C, scattered downpours possible, with steady humidity and steady pressure. Winds shifting from the WSW to the ESE at 9 mph 14 km/h.

Sunday, October 4, 2026

Mid-Morning
Clayton Weather - 2026-10-04 - Morning - Sunny
53°F 12°C
Sunny
Mid-Afternoon
Clayton Weather - 2026-10-04 - Afternoon - Sunny
66°F 19°C
Sunny
Early-Evening
Clayton Weather - 2026-10-04 - Evening - Sunny
61°F 16°C
Sunny
Cool with a high near 66°F 19°C, sunny through the afternoon, turning overcast this evening, with lower humidity and barometric pressure falling.

Monday, October 5, 2026

Mid-Morning
Clayton Weather - 2026-10-05 - Morning - Overcast
58°F 15°C
Overcast
Mid-Afternoon
Clayton Weather - 2026-10-05 - Afternoon - Partly Cloudy
79°F 26°C
Partly Cloudy
Early-Evening
Clayton Weather - 2026-10-05 - Evening - Overcast
73°F 23°C
Overcast
Enjoyable around 79°F 26°C, overcast in the morning, becoming cloudy through the afternoon and evening, with increasing humidity and steady pressure. Winds turning from the SSE to the WNW at 8 mph 13 km/h.

Tuesday, October 6, 2026

Mid-Morning
Clayton Weather - 2026-10-06 - Morning - Overcast
60°F 16°C
Overcast
Mid-Afternoon
Clayton Weather - 2026-10-06 - Afternoon - Sunny
72°F 22°C
Sunny
Early-Evening
Clayton Weather - 2026-10-06 - Evening - Sunny
65°F 19°C
Sunny
Mild temperatures up to 72°F 22°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds NNE at 9 mph 15 km/h.

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Weather by the Numbers

Wed, 23rd
Clayton IL Weather - Wednesday, Sep 23, 2026 - Sunny
Hi: 72°F 22°C
Lo: 54°F 12°C
Sunrise 06:52 AM
Sunset 06:59 PM
Wind NE 10 mph16 km/h
Dew Point 51°F10°C
uv Index 6
Barometric Pressure 30.27 in1025 mb
POP 3% *
Humidity 53%
Thu, 24th
Clayton IL Weather - Thursday, Sep 24, 2026 - Patchy Rain Nearby
Hi: 74°F 23°C
Lo: 55°F 13°C
Sunrise 06:53 AM
Sunset 06:57 PM
Wind ENE 6 mph10 km/h
Dew Point 54°F12°C
uv Index 6
Barometric Pressure 30.27 in1025 mb
POP 8% *
Humidity 59%
Fri, 25th
Clayton IL Weather - Friday, Sep 25, 2026 - Overcast
Hi: 69°F 20°C
Lo: 60°F 16°C
Sunrise 06:54 AM
Sunset 06:56 PM
Wind E 7 mph11 km/h
Dew Point 56°F13°C
uv Index 3
Barometric Pressure 30.21 in1023 mb
POP 18% *
Humidity 70%
Sat, 26th
Clayton IL Weather - Saturday, Sep 26, 2026 - Patchy Rain Nearby
Hi: 62°F 17°C
Lo: 53°F 12°C
Sunrise 06:55 AM
Sunset 06:54 PM
Wind ESE 8 mph13 km/h
Dew Point 50°F10°C
uv Index 1
Barometric Pressure 30.15 in1021 mb
POP 25% *
Humidity 77%
Sun, 27th
Clayton IL Weather - Sunday, Sep 27, 2026 - Light Drizzle
Hi: 61°F 16°C
Lo: 53°F 12°C
Sunrise 06:56 AM
Sunset 06:52 PM
Wind E 5 mph8 km/h
Dew Point 52°F11°C
uv Index 3
Barometric Pressure 30.12 in1020 mb
POP 64% *
Humidity 90%
Mon, 28th
Clayton IL Weather - Monday, Sep 28, 2026 - Sunny
Hi: 74°F 23°C
Lo: 56°F 14°C
Sunrise 06:57 AM
Sunset 06:51 PM
Wind ESE 9 mph15 km/h
Dew Point 53°F12°C
uv Index 6
Barometric Pressure 29.94 in1014 mb
POP 3% *
Humidity 55%
Tue, 29th
Clayton IL Weather - Tuesday, Sep 29, 2026 - Partly Cloudy
Hi: 72°F 22°C
Lo: 56°F 13°C
Sunrise 06:58 AM
Sunset 06:49 PM
Wind SSE 9 mph14 km/h
Dew Point 58°F14°C
uv Index 5
Barometric Pressure 29.8 in1009 mb
POP 14% *
Humidity 70%
Wed, 30th
Clayton IL Weather - Wednesday, Sep 30, 2026 - Overcast
Hi: 65°F 19°C
Lo: 54°F 12°C
Sunrise 06:59 AM
Sunset 06:47 PM
Wind W 20 mph32 km/h
Dew Point 45°F7°C
uv Index 3
Barometric Pressure 29.83 in1010 mb
POP 11% *
Humidity 66%
Thu, 1st
Clayton IL Weather - Thursday, Oct 1, 2026 - Sunny
Hi: 68°F 20°C
Lo: 48°F 9°C
Sunrise 07:00 AM
Sunset 06:46 PM
Wind WNW 16 mph26 km/h
Dew Point 33°F1°C
uv Index 5
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 34%
Fri, 2nd
Clayton IL Weather - Friday, Oct 2, 2026 - Sunny
Hi: 85°F 29°C
Lo: 57°F 14°C
Sunrise 07:01 AM
Sunset 06:44 PM
Wind SW 16 mph26 km/h
Dew Point 47°F8°C
uv Index 7
Barometric Pressure 29.91 in1013 mb
POP 1% *
Humidity 35%
Sat, 3rd
Clayton IL Weather - Saturday, Oct 3, 2026 - Overcast
Hi: 71°F 21°C
Lo: 55°F 13°C
Sunrise 07:02 AM
Sunset 06:43 PM
Wind WNW 11 mph17 km/h
Dew Point 58°F15°C
uv Index 4
Barometric Pressure 29.94 in1014 mb
POP 37% *
Humidity 79%
Sun, 4th
Clayton IL Weather - Sunday, Oct 4, 2026 - Sunny
Hi: 67°F 20°C
Lo: 47°F 8°C
Sunrise 07:03 AM
Sunset 06:41 PM
Wind ENE 4 mph7 km/h
Dew Point 38°F3°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 1% *
Humidity 42%
Mon, 5th
Clayton IL Weather - Monday, Oct 5, 2026 - Thundery Outbreaks In Nearby
Hi: 81°F 27°C
Lo: 53°F 12°C
Sunrise 07:04 AM
Sunset 06:39 PM
Wind S 11 mph18 km/h
Dew Point 45°F7°C
uv Index 5
Barometric Pressure 29.94 in1014 mb
POP 4% *
Humidity 41%
Tue, 6th
Clayton IL Weather - Tuesday, Oct 6, 2026 - Sunny
Hi: 73°F 23°C
Lo: 56°F 14°C
Sunrise 07:05 AM
Sunset 06:38 PM
Wind NE 11 mph17 km/h
Dew Point 50°F10°C
uv Index 6
Barometric Pressure 30.09 in1019 mb
POP 2% *
Humidity 53%
* POP = Probability of Precipitation. Data for 12:00 PM.