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Current weather in Clayton is overcast clouds.

Where can I find the hourly weather forecast for Clayton?

This page shows hourly weather forecast for Clayton, including temperature, wind, precipitation, humidity and cloud cover.

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Weather data for Clayton is updated regularly with the latest available observations and forecasts.

Now · 4:33 AM

Clayton Weather & Hourly Forecast

United States · Illinois · 62324

68°F

Overcast night

Feels like: 66°F

💧 Humidity 66% 🌡 Pressure 30.06 inHg 💨 Wind 8 mph 👁 Visibility 20.5 mi ☁ Clouds 95% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Clayton

Today

5:00 AM

Overcast night

68° 💧 None 💨 8 mph H 66%30.06 inHg

8:00 AM

Mostly cloudy

71° 💧 None 💨 8 mph H 66%30.09 inHg

11:00 AM

Mostly sunny

83° 💧 None 💨 9 mph H 45%30.09 inHg

2:00 PM

Mostly sunny

91° 💧 None 💨 8 mph H 38%30.03 inHg

5:00 PM

Sunny

92° 💧 None 💨 8 mph H 41%29.97 inHg

8:00 PM

Clear night

84° 💧 None 💨 9 mph H 54%30.00 inHg

11:00 PM

Clear night

82° 💧 None 💨 10 mph H 53%30.00 inHg

Tomorrow

2:00 AM

Clear night

80° 💧 None 💨 11 mph H 53%29.97 inHg

5:00 AM

Clear night

79° 💧 None 💨 10 mph H 56%29.97 inHg

8:00 AM

Sunny

79° 💧 0.007 in 💨 4 mph H 62%30.03 inHg

11:00 AM

Light rain

86° 💧 0.018 in 💨 6 mph H 57%30.03 inHg

2:00 PM

Light rain

87° 💧 0.039 in 💨 8 mph H 59%30.00 inHg

5:00 PM

Mostly cloudy

85° 💧 0.031 in 💨 8 mph H 64%29.97 inHg

8:00 PM

Thunderstorms

75° 💧 0.287 in 💨 7 mph H 96%29.97 inHg

11:00 PM

Thunderstorms

74° 💧 0.217 in 💨 3 mph H 99%30.00 inHg

Thursday

2:00 AM

Light thunderstorms

72° 💧 0.021 in 💨 3 mph H 98%29.97 inHg

Today

5:00 AM

Overcast night

68° 💧 None 💨 8 mph H 66%30.06 inHg

6:00 AM

Overcast night

68° 💧 None 💨 8 mph H 66%30.06 inHg

7:00 AM

Mostly cloudy

68° 💧 None 💨 8 mph H 66%30.09 inHg

8:00 AM

Mostly cloudy

71° 💧 None 💨 8 mph H 66%30.09 inHg

9:00 AM

Mostly cloudy

75° 💧 None 💨 8 mph H 60%30.09 inHg

10:00 AM

Mostly sunny

79° 💧 None 💨 8 mph H 53%30.09 inHg

11:00 AM

Mostly sunny

83° 💧 None 💨 9 mph H 45%30.09 inHg

12:00 PM

Mostly sunny

87° 💧 None 💨 9 mph H 40%30.06 inHg

1:00 PM

Mostly sunny

89° 💧 None 💨 9 mph H 38%30.03 inHg

2:00 PM

Mostly sunny

91° 💧 None 💨 8 mph H 38%30.03 inHg

3:00 PM

Mostly sunny

92° 💧 None 💨 8 mph H 39%30.00 inHg

4:00 PM

Sunny

92° 💧 None 💨 9 mph H 39%30.00 inHg

5:00 PM

Sunny

92° 💧 None 💨 8 mph H 41%29.97 inHg

6:00 PM

Sunny

90° 💧 None 💨 7 mph H 46%29.97 inHg

7:00 PM

Sunny

86° 💧 None 💨 8 mph H 52%29.97 inHg

8:00 PM

Clear night

84° 💧 None 💨 9 mph H 54%30.00 inHg

9:00 PM

Clear night

82° 💧 None 💨 9 mph H 56%30.00 inHg

10:00 PM

Clear night

82° 💧 None 💨 9 mph H 55%30.03 inHg

11:00 PM

Clear night

82° 💧 None 💨 10 mph H 53%30.00 inHg

Tomorrow

12:00 AM

Clear night

81° 💧 None 💨 10 mph H 54%30.00 inHg

1:00 AM

Clear night

81° 💧 None 💨 11 mph H 54%30.00 inHg

2:00 AM

Clear night

80° 💧 None 💨 11 mph H 53%29.97 inHg

3:00 AM

Clear night

79° 💧 None 💨 10 mph H 54%29.97 inHg

4:00 AM

Clear night

79° 💧 None 💨 10 mph H 56%29.97 inHg

5:00 AM

Clear night

79° 💧 None 💨 10 mph H 56%29.97 inHg

6:00 AM

Clear night

79° 💧 None 💨 10 mph H 55%30.00 inHg

7:00 AM

Sunny

78° 💧 None 💨 8 mph H 56%30.00 inHg

8:00 AM

Sunny

79° 💧 None 💨 4 mph H 62%30.03 inHg

9:00 AM

Partly cloudy

82° 💧 0.003 in 💨 5 mph H 61%30.06 inHg

10:00 AM

Light rain

84° 💧 0.004 in 💨 5 mph H 57%30.03 inHg

11:00 AM

Light rain

86° 💧 0.009 in 💨 6 mph H 57%30.03 inHg

12:00 PM

Mostly sunny

88° 💧 0.001 in 💨 8 mph H 53%30.03 inHg

1:00 PM

Light rain

87° 💧 0.008 in 💨 12 mph H 56%30.03 inHg

2:00 PM

Light rain

87° 💧 0.011 in 💨 8 mph H 59%30.00 inHg

3:00 PM

Light rain

89° 💧 0.004 in 💨 8 mph H 54%29.97 inHg

4:00 PM

Light thunderstorms

85° 💧 0.023 in 💨 6 mph H 63%29.97 inHg

5:00 PM

Mostly cloudy

85° 💧 0.001 in 💨 8 mph H 64%29.97 inHg

6:00 PM

Light thunderstorms

80° 💧 0.006 in 💨 6 mph H 75%29.97 inHg

7:00 PM

Light thunderstorms

78° 💧 0.024 in 💨 4 mph H 86%29.97 inHg

8:00 PM

Thunderstorms

75° 💧 0.101 in 💨 7 mph H 96%29.97 inHg

9:00 PM

Light rain

75° 💧 0.093 in 💨 3 mph H 97%29.97 inHg

10:00 PM

Light thunderstorms

74° 💧 0.093 in 💨 2 mph H 98%30.00 inHg

11:00 PM

Thunderstorms

74° 💧 0.171 in 💨 3 mph H 99%30.00 inHg

Thursday

12:00 AM

Light thunderstorms

74° 💧 0.045 in 💨 3 mph H 99%29.97 inHg

1:00 AM

Overcast night

73° 💧 0.001 in 💨 6 mph H 98%29.97 inHg

2:00 AM

Light thunderstorms

72° 💧 0.011 in 💨 3 mph H 98%29.97 inHg

3:00 AM

Overcast night

73° 💧 0.002 in 💨 3 mph H 98%29.97 inHg

4:00 AM

Light rain

73° 💧 0.008 in 💨 4 mph H 97%29.97 inHg

5:00 AM

Light rain

72° 💧 0.012 in 💨 6 mph H 98%29.97 inHg

6:00 AM

Light rain

71° 💧 0.033 in 💨 5 mph H 98%29.97 inHg

7:00 AM

Light rain

70° 💧 0.012 in 💨 5 mph H 98%29.97 inHg

8:00 AM

Overcast

71° 💧 0.001 in 💨 5 mph H 97%30.00 inHg

9:00 AM

Mostly cloudy

73° 💧 None 💨 8 mph H 92%30.00 inHg

10:00 AM

Mostly cloudy

75° 💧 None 💨 7 mph H 83%30.00 inHg

11:00 AM

Overcast

78° 💧 None 💨 7 mph H 71%30.00 inHg

12:00 PM

Overcast

80° 💧 None 💨 7 mph H 61%30.00 inHg

1:00 PM

Overcast

80° 💧 None 💨 7 mph H 56%30.00 inHg

2:00 PM

Mostly cloudy

81° 💧 None 💨 8 mph H 53%29.97 inHg

3:00 PM

Mostly sunny

81° 💧 None 💨 8 mph H 50%29.97 inHg

4:00 PM

Mostly sunny

81° 💧 None 💨 8 mph H 49%29.94 inHg

5:00 PM

Sunny

80° 💧 None 💨 8 mph H 49%29.94 inHg

6:00 PM

Sunny

78° 💧 None 💨 7 mph H 55%29.94 inHg

7:00 PM

Sunny

74° 💧 None 💨 5 mph H 62%29.94 inHg

10:00 PM

Clear night

67° 💧 None 💨 6 mph H 70%30.00 inHg

Friday

1:00 AM

Clear night

63° 💧 None 💨 4 mph H 80%30.00 inHg

4:00 AM

Clear night

60° 💧 None 💨 4 mph H 88%30.00 inHg

7:00 AM

Sunny

60° 💧 None 💨 4 mph H 91%30.00 inHg

10:00 AM

Sunny

72° 💧 None 💨 5 mph H 72%30.00 inHg

1:00 PM

Sunny

80° 💧 None 💨 6 mph H 52%29.94 inHg

4:00 PM

Sunny

81° 💧 None 💨 7 mph H 52%29.88 inHg

7:00 PM

Sunny

75° 💧 None 💨 4 mph H 73%29.85 inHg

10:00 PM

Mostly clear night

70° 💧 None 💨 6 mph H 83%29.85 inHg

Saturday

1:00 AM

Mostly clear night

70° 💧 None 💨 9 mph H 77%29.83 inHg

4:00 AM

Clear night

70° 💧 None 💨 9 mph H 86%29.80 inHg

7:00 AM

Sunny

70° 💧 None 💨 8 mph H 95%29.83 inHg

10:00 AM

Light rain

76° 💧 None 💨 11 mph H 82%29.91 inHg

1:00 PM

Overcast

80° 💧 None 💨 8 mph H 70%29.85 inHg

4:00 PM

Overcast

81° 💧 None 💨 8 mph H 72%29.85 inHg

7:00 PM

Partly cloudy

79° 💧 None 💨 3 mph H 80%29.85 inHg

10:00 PM

Mostly cloudy night

75° 💧 None 💨 4 mph H 90%29.91 inHg

Sunday

1:00 AM

Light rain

73° 💧 None 💨 7 mph H 95%29.97 inHg

4:00 AM

Partly cloudy night

71° 💧 None 💨 9 mph H 96%30.00 inHg

7:00 AM

Partly cloudy

64° 💧 None 💨 7 mph H 88%30.03 inHg

10:00 AM

Mostly sunny

71° 💧 None 💨 8 mph H 66%30.09 inHg

1:00 PM

Partly cloudy

78° 💧 None 💨 5 mph H 54%30.06 inHg

4:00 PM

Mostly cloudy

81° 💧 None 💨 4 mph H 54%30.00 inHg

7:00 PM

Mostly sunny

76° 💧 None 💨 5 mph H 66%30.03 inHg

Monday

1:00 AM

Partly cloudy night

70° 💧 None 💨 8 mph H 69%30.06 inHg

7:00 AM

Light rain

69° 💧 None 💨 8 mph H 88%30.03 inHg

1:00 PM

Overcast

90° 💧 None 💨 10 mph H 59%29.94 inHg

7:00 PM

Sunny

86° 💧 None 💨 11 mph H 63%29.80 inHg

Tuesday

1:00 AM

Overcast night

79° 💧 None 💨 7 mph H 76%29.94 inHg

7:00 AM

Overcast

73° 💧 None 💨 8 mph H 98%30.03 inHg

1:00 PM

Overcast

79° 💧 None 💨 7 mph H 48%30.12 inHg

7:00 PM

Partly cloudy

75° 💧 None 💨 7 mph H 53%30.12 inHg

Wednesday

1:00 AM

Partly cloudy night

67° 💧 None 💨 6 mph H 74%30.21 inHg

7:00 AM

Light rain

63° 💧 None 💨 9 mph H 92%30.24 inHg

1:00 PM

Moderate rain

70° 💧 None 💨 7 mph H 89%30.24 inHg

7:00 PM

Mostly cloudy

72° 💧 None 💨 8 mph H 88%30.18 inHg

Thursday

1:00 AM

Mostly cloudy night

70° 💧 None 💨 7 mph H 92%30.18 inHg

7:00 AM

Overcast

69° 💧 None 💨 4 mph H 98%30.15 inHg

1:00 PM

Overcast

81° 💧 None 💨 8 mph H 77%30.15 inHg

7:00 PM

Mostly cloudy

70° 💧 None 💨 11 mph H 79%30.24 inHg

Friday

1:00 AM

Clear night

62° 💧 None 💨 10 mph H 81%30.36 inHg

7:00 AM

Sunny

57° 💧 None 💨 10 mph H 85%30.45 inHg

1:00 PM

Sunny

65° 💧 None 💨 9 mph H 53%30.45 inHg

7:00 PM

Sunny

61° 💧 None 💨 7 mph H 64%30.39 inHg

Saturday

1:00 AM

Clear night

53° 💧 None 💨 5 mph H 83%30.39 inHg

7:00 AM

Mostly sunny

49° 💧 None 💨 4 mph H 90%30.36 inHg

1:00 PM

Sunny

66° 💧 None 💨 6 mph H 46%30.27 inHg

7:00 PM

Sunny

62° 💧 None 💨 4 mph H 64%30.15 inHg

Sunday

1:00 AM

Clear night

56° 💧 None 💨 7 mph H 73%30.12 inHg

7:00 AM

Sunny

52° 💧 None 💨 7 mph H 79%30.09 inHg

1:00 PM

Mostly sunny

75° 💧 None 💨 8 mph H 38%30.06 inHg

7:00 PM

Mostly cloudy

70° 💧 None 💨 6 mph H 50%30.00 inHg

Monday

1:00 AM

Overcast night

66° 💧 None 💨 6 mph H 55%30.03 inHg

7:00 AM

Overcast

65° 💧 None 💨 4 mph H 63%30.06 inHg

1:00 PM

Mostly cloudy

78° 💧 None 💨 6 mph H 55%30.06 inHg

7:00 PM

Overcast

72° 💧 None 💨 8 mph H 60%30.09 inHg

Tuesday

1:00 AM

Mostly cloudy night

64° 💧 None 💨 7 mph H 73%30.12 inHg

7:00 AM

Mostly cloudy

57° 💧 None 💨 5 mph H 88%30.15 inHg

1:00 PM

Sunny

75° 💧 None 💨 5 mph H 42%30.12 inHg

7:00 PM

Overcast

69° 💧 None 💨 4 mph H 57%30.03 inHg

In Clayton and, more broadly, across the state of Illinois: This evening will be mostly sunny with a few clouds, and temperatures will remain mild to warm, ranging from 76 to 79 degrees Fahrenheit. Light east winds will prevail, with speeds up to 9 mph and occasional gusts reaching 22 mph. No precipitation is expected during this time, making for a clear and pleasant evening. Conditions should remain stable through the next few hours, providing comfortable weather for outdoor activities. Temperatures will gradually stay within the same range, and winds are unlikely to cause any disruptions. Overall, it should be a calm and mild evening with clear skies and gentle breezes.

15-Day Weather Outlook for Clayton

TomorrowTomorrow

Light thunderstorms 88°/77° 💧 None 💨 11 mph

Thursday, Sep 10Thu Sep 10

Light thunderstorms 81°/71° 💧 0.387 in 💨 8 mph

Friday, Sep 11Fri Sep 11

Mostly sunny 81°/60° 💧 0.000 in 💨 7 mph

Saturday, Sep 12Sat Sep 12

Overcast 87°/69° 💧 0.008 in 💨 9 mph

Sunday, Sep 13Sun Sep 13

Light rain 85°/70° 💧 0.073 in 💨 7 mph

Monday, Sep 14Mon Sep 14

Partly cloudy 87°/74° 💧 0.005 in 💨 9 mph

Tuesday, Sep 15Tue Sep 15

Light rain 90°/65° 💧 0.264 in 💨 12 mph

Wednesday, Sep 16Wed Sep 16

Sunny 77°/57° 💧 None 💨 10 mph

Thursday, Sep 17Thu Sep 17

Sunny 74°/58° 💧 0.000 in 💨 7 mph

Friday, Sep 18Fri Sep 18

Mostly sunny 79°/63° 💧 None 💨 8 mph

Saturday, Sep 19Sat Sep 19

Heavy rain 82°/67° 💧 0.789 in 💨 6 mph

Sunday, Sep 20Sun Sep 20

Overcast 74°/64° 💧 0.412 in 💨 6 mph

Monday, Sep 21Mon Sep 21

Mostly cloudy 74°/64° 💧 0.002 in 💨 8 mph

Tuesday, Sep 22Tue Sep 22

Moderate rain 68°/62° 💧 0.726 in 💨 11 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Clayton

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Clayton

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 5:00 AM

PM2.5 Fine particles Good 8,2µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 9,0µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 60,1µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 3,8µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Clayton

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 7,1High 🙂Fair

Tomorrow UV 7,3High 🙂Fair

Thursday UV 5,9Moderate 🙂Fair

Friday UV 6,8High 🙂Fair

Saturday UV 9,0Very high 😊Good

Sunday UV 9,0Very high —Unavailable

Monday UV 9,0Very high —Unavailable

Hourly UV index today

7:00 AMUV 0,0 8:00 AMUV 0,5 9:00 AMUV 1,5 10:00 AMUV 3,4 11:00 AMUV 5,5 12:00 PMUV 6,9 1:00 PMUV 7,1 2:00 PMUV 6,7 3:00 PMUV 5,4 4:00 PMUV 3,6 5:00 PMUV 1,8 6:00 PMUV 0,6

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Clayton

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · CLAYTON, ILLINOIS

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

31/100Best-hour score

No good viewing window tonight Astronomical darkness exists, but current sky conditions are unfavorable.

☁ Cloud cover 95% Real hourly forecast for the best viewing hour.

☾ Moonlight 13% Waning Crescent · Moon about 13° above the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 89° high at the best hour.

✦ Estimated visible meteors Poor visibility Meteor activity may occur above the clouds, but local viewing conditions are not suitable.

Chance ≥1 meteor in 30 minNot meaningful

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for Clayton were last refreshed today at 4:33 AM. The current forecast period extends through 10/09/2026 at 2:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.