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Current weather in Mark is broken clouds.

Where can I find the hourly weather forecast for Mark?

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

Is the weather forecast for Mark updated regularly?

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

Now · 7:51 AM

Mark Weather & Hourly Forecast

United States · Illinois · 61340

67°F

Mostly cloudy

Feels like: 68°F

💧 Humidity 80% 🌡 Pressure 30.12 inHg 💨 Wind 5 mph 👁 Visibility 17.4 mi ☁ Clouds 91% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Mark

Today

8:00 AM

Mostly cloudy

67° 💧 None 💨 5 mph H 80%30.12 inHg

11:00 AM

Overcast

79° 💧 None 💨 6 mph H 59%30.12 inHg

2:00 PM

Sunny

85° 💧 None 💨 8 mph H 45%30.06 inHg

5:00 PM

Sunny

86° 💧 None 💨 9 mph H 49%30.00 inHg

8:00 PM

Clear night

79° 💧 None 💨 8 mph H 62%30.00 inHg

11:00 PM

Mostly clear night

77° 💧 None 💨 8 mph H 63%30.00 inHg

Tomorrow

2:00 AM

Mostly clear night

77° 💧 None 💨 10 mph H 60%29.97 inHg

5:00 AM

Clear night

76° 💧 0.050 in 💨 7 mph H 60%29.97 inHg

8:00 AM

Light thunderstorms

71° 💧 0.162 in 💨 3 mph H 95%30.00 inHg

11:00 AM

Light rain

77° 💧 0.023 in 💨 6 mph H 91%30.03 inHg

2:00 PM

Overcast

78° 💧 0.019 in 💨 6 mph H 82%30.00 inHg

5:00 PM

Light rain

76° 💧 0.026 in 💨 6 mph H 94%29.97 inHg

8:00 PM

Overcast night

74° 💧 None 💨 1 mph H 97%29.97 inHg

11:00 PM

Mist at night

72° 💧 None 💨 2 mph H 100%29.97 inHg

Thursday

2:00 AM

Fog at night

71° 💧 None 💨 3 mph H 100%29.97 inHg

5:00 AM

Fog at night

70° 💧 None 💨 4 mph H 100%29.94 inHg

Today

8:00 AM

Mostly cloudy

67° 💧 None 💨 5 mph H 80%30.12 inHg

9:00 AM

Mostly cloudy

70° 💧 None 💨 5 mph H 74%30.12 inHg

10:00 AM

Mostly cloudy

74° 💧 None 💨 5 mph H 67%30.12 inHg

11:00 AM

Overcast

79° 💧 None 💨 6 mph H 59%30.12 inHg

12:00 PM

Partly cloudy

82° 💧 None 💨 6 mph H 52%30.09 inHg

1:00 PM

Mostly sunny

84° 💧 None 💨 7 mph H 47%30.06 inHg

2:00 PM

Sunny

85° 💧 None 💨 8 mph H 45%30.06 inHg

3:00 PM

Partly cloudy

86° 💧 None 💨 9 mph H 46%30.03 inHg

4:00 PM

Sunny

86° 💧 None 💨 8 mph H 47%30.03 inHg

5:00 PM

Sunny

86° 💧 None 💨 9 mph H 49%30.00 inHg

6:00 PM

Sunny

84° 💧 None 💨 7 mph H 55%30.00 inHg

7:00 PM

Sunny

81° 💧 None 💨 7 mph H 60%30.00 inHg

8:00 PM

Clear night

79° 💧 None 💨 8 mph H 62%30.00 inHg

9:00 PM

Mostly clear night

78° 💧 None 💨 8 mph H 63%30.03 inHg

10:00 PM

Mostly clear night

77° 💧 None 💨 8 mph H 64%30.03 inHg

11:00 PM

Mostly clear night

77° 💧 None 💨 8 mph H 63%30.00 inHg

Tomorrow

12:00 AM

Clear night

77° 💧 None 💨 10 mph H 62%30.00 inHg

1:00 AM

Clear night

77° 💧 None 💨 10 mph H 60%29.97 inHg

2:00 AM

Mostly clear night

77° 💧 None 💨 10 mph H 60%29.97 inHg

3:00 AM

Clear night

77° 💧 None 💨 9 mph H 60%29.97 inHg

4:00 AM

Clear night

76° 💧 None 💨 9 mph H 60%29.97 inHg

5:00 AM

Clear night

76° 💧 None 💨 7 mph H 60%29.97 inHg

6:00 AM

Light rain

74° 💧 0.008 in 💨 6 mph H 70%30.03 inHg

7:00 AM

Light thunderstorms

71° 💧 0.043 in 💨 9 mph H 87%30.06 inHg

8:00 AM

Light thunderstorms

71° 💧 0.056 in 💨 3 mph H 95%30.00 inHg

9:00 AM

Light rain

74° 💧 0.014 in 💨 7 mph H 93%30.03 inHg

10:00 AM

Light rain

74° 💧 0.092 in 💨 7 mph H 96%30.00 inHg

11:00 AM

Light rain

77° 💧 0.023 in 💨 6 mph H 91%30.03 inHg

12:00 PM

Overcast

81° 💧 0.000 in 💨 10 mph H 73%30.03 inHg

1:00 PM

Overcast

80° 💧 0.000 in 💨 9 mph H 74%30.00 inHg

2:00 PM

Overcast

78° 💧 0.004 in 💨 6 mph H 82%30.00 inHg

3:00 PM

Overcast

80° 💧 0.001 in 💨 7 mph H 76%29.97 inHg

4:00 PM

Light rain

79° 💧 0.014 in 💨 7 mph H 82%29.97 inHg

5:00 PM

Light rain

76° 💧 0.025 in 💨 6 mph H 94%29.97 inHg

6:00 PM

Overcast

76° 💧 0.001 in 💨 4 mph H 93%29.97 inHg

7:00 PM

Overcast

76° 💧 None 💨 2 mph H 95%29.97 inHg

8:00 PM

Overcast night

74° 💧 None 💨 1 mph H 97%29.97 inHg

9:00 PM

Mostly cloudy night

73° 💧 None 💨 1 mph H 99%29.97 inHg

10:00 PM

Mist at night

72° 💧 None 💨 2 mph H 100%29.97 inHg

11:00 PM

Mist at night

72° 💧 None 💨 2 mph H 100%29.97 inHg

Thursday

12:00 AM

Fog at night

71° 💧 None 💨 1 mph H 100%29.97 inHg

1:00 AM

Fog at night

71° 💧 None 💨 2 mph H 100%29.97 inHg

2:00 AM

Fog at night

71° 💧 None 💨 3 mph H 100%29.97 inHg

3:00 AM

Fog at night

70° 💧 None 💨 2 mph H 100%29.94 inHg

4:00 AM

Fog at night

69° 💧 None 💨 2 mph H 100%29.97 inHg

5:00 AM

Fog at night

70° 💧 None 💨 4 mph H 100%29.94 inHg

6:00 AM

Fog at night

68° 💧 None 💨 5 mph H 99%29.97 inHg

7:00 AM

Fog

67° 💧 None 💨 5 mph H 95%29.97 inHg

8:00 AM

Overcast

67° 💧 None 💨 5 mph H 91%30.00 inHg

9:00 AM

Mostly sunny

70° 💧 None 💨 5 mph H 83%30.00 inHg

10:00 AM

Sunny

74° 💧 None 💨 5 mph H 70%30.00 inHg

11:00 AM

Sunny

77° 💧 None 💨 6 mph H 57%30.00 inHg

12:00 PM

Sunny

79° 💧 None 💨 7 mph H 49%30.00 inHg

1:00 PM

Sunny

80° 💧 None 💨 7 mph H 47%29.97 inHg

2:00 PM

Sunny

80° 💧 None 💨 7 mph H 47%29.97 inHg

3:00 PM

Sunny

80° 💧 0.000 in 💨 8 mph H 46%29.97 inHg

4:00 PM

Sunny

79° 💧 None 💨 9 mph H 48%29.94 inHg

5:00 PM

Sunny

77° 💧 None 💨 9 mph H 51%29.94 inHg

6:00 PM

Sunny

75° 💧 None 💨 7 mph H 55%29.94 inHg

7:00 PM

Sunny

71° 💧 None 💨 5 mph H 64%29.94 inHg

Friday

4:00 AM

Clear night

59° 💧 None 💨 3 mph H 92%30.00 inHg

7:00 AM

Sunny

59° 💧 None 💨 4 mph H 94%30.03 inHg

10:00 AM

Sunny

71° 💧 None 💨 6 mph H 68%30.00 inHg

1:00 PM

Sunny

78° 💧 None 💨 6 mph H 51%29.97 inHg

4:00 PM

Sunny

80° 💧 None 💨 5 mph H 50%29.88 inHg

7:00 PM

Sunny

73° 💧 None 💨 4 mph H 71%29.85 inHg

10:00 PM

Clear night

69° 💧 None 💨 7 mph H 76%29.85 inHg

Saturday

1:00 AM

Mostly clear night

67° 💧 None 💨 7 mph H 84%29.88 inHg

4:00 AM

Mostly cloudy night

66° 💧 None 💨 6 mph H 86%29.83 inHg

7:00 AM

Overcast

65° 💧 None 💨 1 mph H 92%29.88 inHg

10:00 AM

Mostly cloudy

71° 💧 None 💨 6 mph H 93%29.88 inHg

1:00 PM

Overcast

81° 💧 None 💨 9 mph H 69%29.88 inHg

4:00 PM

Overcast

81° 💧 None 💨 6 mph H 71%29.88 inHg

7:00 PM

Partly cloudy

77° 💧 None 💨 2 mph H 84%29.91 inHg

10:00 PM

Overcast night

74° 💧 None 💨 3 mph H 90%29.97 inHg

Sunday

1:00 AM

Mostly clear night

71° 💧 None 💨 6 mph H 90%30.00 inHg

4:00 AM

Mostly clear night

66° 💧 None 💨 6 mph H 82%30.03 inHg

7:00 AM

Overcast

66° 💧 None 💨 6 mph H 73%30.06 inHg

10:00 AM

Mostly cloudy

71° 💧 None 💨 5 mph H 64%30.09 inHg

1:00 PM

Partly cloudy

80° 💧 None 💨 3 mph H 56%30.06 inHg

4:00 PM

Mostly cloudy

83° 💧 None 💨 3 mph H 53%30.00 inHg

7:00 PM

Mostly cloudy

79° 💧 None 💨 1 mph H 74%29.97 inHg

10:00 PM

Mostly cloudy night

75° 💧 None 💨 8 mph H 70%30.00 inHg

Monday

1:00 AM

Mostly clear night

72° 💧 None 💨 6 mph H 81%30.00 inHg

7:00 AM

Mostly cloudy

65° 💧 None 💨 7 mph H 75%30.12 inHg

1:00 PM

Overcast

65° 💧 None 💨 9 mph H 67%30.09 inHg

7:00 PM

Overcast

75° 💧 None 💨 7 mph H 70%30.00 inHg

Tuesday

1:00 AM

Clear night

83° 💧 None 💨 13 mph H 72%29.83 inHg

7:00 AM

Light rain

73° 💧 None 💨 10 mph H 95%29.91 inHg

1:00 PM

Overcast

68° 💧 None 💨 11 mph H 93%30.03 inHg

7:00 PM

Mostly cloudy

76° 💧 None 💨 6 mph H 59%30.09 inHg

Wednesday

1:00 AM

Overcast night

70° 💧 None 💨 3 mph H 74%30.15 inHg

7:00 AM

Mostly cloudy

62° 💧 None 💨 4 mph H 87%30.21 inHg

1:00 PM

Mostly sunny

60° 💧 None 💨 6 mph H 92%30.27 inHg

7:00 PM

Overcast

74° 💧 None 💨 5 mph H 73%30.27 inHg

Thursday

1:00 AM

Overcast night

70° 💧 None 💨 5 mph H 84%30.24 inHg

7:00 AM

Light rain

65° 💧 None 💨 8 mph H 95%30.24 inHg

1:00 PM

Light thunderstorms

65° 💧 None 💨 7 mph H 96%30.21 inHg

7:00 PM

Light rain

68° 💧 None 💨 9 mph H 93%30.21 inHg

Friday

1:00 AM

Clear night

69° 💧 None 💨 9 mph H 74%30.27 inHg

7:00 AM

Sunny

59° 💧 None 💨 11 mph H 84%30.39 inHg

1:00 PM

Sunny

52° 💧 None 💨 8 mph H 73%30.47 inHg

7:00 PM

Partly cloudy

64° 💧 None 💨 9 mph H 52%30.47 inHg

Saturday

1:00 AM

Clear night

59° 💧 None 💨 4 mph H 70%30.39 inHg

7:00 AM

Sunny

51° 💧 None 💨 1 mph H 87%30.39 inHg

1:00 PM

Partly cloudy

46° 💧 None 💨 2 mph H 97%30.36 inHg

7:00 PM

Sunny

65° 💧 None 💨 5 mph H 48%30.30 inHg

Sunday

1:00 AM

Clear night

60° 💧 None 💨 3 mph H 71%30.18 inHg

7:00 AM

Partly cloudy

54° 💧 None 💨 6 mph H 80%30.15 inHg

1:00 PM

Sunny

51° 💧 None 💨 6 mph H 83%30.12 inHg

7:00 PM

Clear night

70° 💧 None 💨 8 mph H 52%30.09 inHg

Monday

1:00 AM

Mostly cloudy night

65° 💧 None 💨 5 mph H 70%30.03 inHg

7:00 AM

Overcast

64° 💧 None 💨 7 mph H 65%30.03 inHg

1:00 PM

Overcast

63° 💧 None 💨 4 mph H 71%30.03 inHg

7:00 PM

Overcast night

77° 💧 None 💨 9 mph H 56%30.03 inHg

Tuesday

1:00 AM

Overcast night

69° 💧 None 💨 8 mph H 59%30.03 inHg

7:00 AM

Overcast

61° 💧 None 💨 5 mph H 80%30.06 inHg

1:00 PM

Sunny

55° 💧 None 💨 6 mph H 89%30.12 inHg

7:00 PM

Clear night

70° 💧 None 💨 7 mph H 50%30.09 inHg

Wednesday

1:00 AM

Clear night

65° 💧 None 💨 5 mph H 69%30.00 inHg

In Mark and, more broadly, across the state of Illinois: This morning, the sky will be mostly cloudy with warm temperatures ranging from 60 to 90 degrees Fahrenheit. Winds will be light, coming from the south at around 9 mph, with occasional gusts up to 17 mph. As the day progresses into the afternoon, conditions will remain mostly cloudy, but temperatures are expected to stay steady within the same range. No precipitation is forecasted, so outdoor plans can proceed without concern for rain. Winds will continue to be gentle, maintaining a southward flow with similar speeds. Overall, it will be a warm and partly cloudy day with calm winds and no threat of rain.

15-Day Weather Outlook for Mark

TomorrowTomorrow

Light thunderstorms 81°/71° 💧 None 💨 10 mph

Thursday, Sep 10Thu Sep 10

Overcast 80°/67° 💧 None 💨 9 mph

Friday, Sep 11Fri Sep 11

Sunny 80°/59° 💧 0.252 in 💨 6 mph

Saturday, Sep 12Sat Sep 12

Overcast 81°/65° 💧 0.068 in 💨 9 mph

Sunday, Sep 13Sun Sep 13

Overcast 83°/66° 💧 0.002 in 💨 6 mph

Monday, Sep 14Mon Sep 14

Overcast 79°/65° 💧 0.393 in 💨 9 mph

Tuesday, Sep 15Tue Sep 15

Light rain 83°/68° 💧 0.444 in 💨 13 mph

Wednesday, Sep 16Wed Sep 16

Mostly cloudy 76°/60° 💧 None 💨 6 mph

Thursday, Sep 17Thu Sep 17

Light thunderstorms 74°/65° 💧 0.335 in 💨 8 mph

Friday, Sep 18Fri Sep 18

Light rain 69°/52° 💧 0.523 in 💨 11 mph

Saturday, Sep 19Sat Sep 19

Partly cloudy 64°/46° 💧 None 💨 9 mph

Sunday, Sep 20Sun Sep 20

Partly cloudy 65°/51° 💧 None 💨 6 mph

Monday, Sep 21Mon Sep 21

Mostly cloudy 70°/63° 💧 None 💨 8 mph

Tuesday, Sep 22Tue Sep 22

Overcast 77°/55° 💧 None 💨 9 mph

Wednesday, Sep 23Wed Sep 23

Sunny 70°/65° 💧 None 💨 7 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Mark

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Mark

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 8:00 AM

PM2.5 Fine particles Good 5,7µg/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 6,1µg/m³

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

O₃ Ozone Good 37,9µg/m³

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

NO₂ Nitrogen dioxide Good 4,2µg/m³

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

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Mark

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 7,2High 😊Good

Tomorrow UV 6,7High 🙂Fair

Thursday UV 6,3High 🙂Fair

Friday UV 6,7High 😐Moderate

Saturday UV 7,0High 🙂Fair

Sunday UV 8,0Very high —Unavailable

Monday UV 8,0Very high —Unavailable

Hourly UV index today

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

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.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

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 Mark

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · MARK, ILLINOIS

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 4:00 AM–5:00 AM.

100/100Best-hour score

BEST TIME TONIGHT 4:00 AM–5:00 AM Astronomical darkness: 8:53 PM–4:56 AM

☁ Cloud cover 0% Real hourly forecast for the best viewing hour.

☾ Moonlight 7% Waning Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 79° high at the best hour.

✦ Estimated visible meteors 2–5/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min81%

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.

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Forecast data for Mark were last refreshed today at 7:51 AM. The current forecast period extends through 10/09/2026 at 5:00 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.