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Current weather in Mattoon is overcast clouds.

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

Is the weather forecast for Mattoon updated regularly?

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

Now · 6:50 AM

Mattoon Weather & Hourly Forecast

United States · Illinois · 61938

60°F

Overcast

Feels like: 57°F

💧 Humidity 86% 🌡 Pressure 30.27 inHg 💨 Wind 8 mph 👁 Visibility 5.0 mi ☁ Clouds 100% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:40 AM 🌇 Sunset 6:50 PM

Hourly Forecast for Mattoon

Today

7:00 AM

Overcast

60° 💧 0.007 in 💨 8 mph H 86%30.27 inHg

10:00 AM

Overcast

64° 💧 0.001 in 💨 11 mph H 75%30.27 inHg

1:00 PM

Overcast

67° 💧 None 💨 11 mph H 66%30.27 inHg

4:00 PM

Overcast

68° 💧 None 💨 11 mph H 65%30.24 inHg

7:00 PM

Overcast night

65° 💧 None 💨 8 mph H 72%30.24 inHg

10:00 PM

Overcast night

63° 💧 None 💨 8 mph H 78%30.27 inHg

Tomorrow

1:00 AM

Mostly cloudy night

60° 💧 0.001 in 💨 7 mph H 86%30.24 inHg

4:00 AM

Overcast night

60° 💧 None 💨 7 mph H 88%30.24 inHg

7:00 AM

Overcast

59° 💧 None 💨 7 mph H 85%30.27 inHg

10:00 AM

Mostly sunny

64° 💧 None 💨 7 mph H 72%30.27 inHg

1:00 PM

Mostly cloudy

73° 💧 None 💨 7 mph H 60%30.24 inHg

4:00 PM

Overcast

73° 💧 0.001 in 💨 7 mph H 63%30.21 inHg

7:00 PM

Mostly cloudy night

68° 💧 None 💨 5 mph H 74%30.21 inHg

10:00 PM

Mostly cloudy night

65° 💧 None 💨 6 mph H 83%30.24 inHg

Friday

1:00 AM

Mostly clear night

63° 💧 None 💨 6 mph H 85%30.21 inHg

4:00 AM

Mostly cloudy night

61° 💧 0.001 in 💨 5 mph H 89%30.21 inHg

Today

7:00 AM

Overcast

60° 💧 0.002 in 💨 8 mph H 86%30.27 inHg

8:00 AM

Light rain

60° 💧 0.004 in 💨 8 mph H 86%30.27 inHg

9:00 AM

Partly cloudy

62° 💧 0.000 in 💨 10 mph H 81%30.27 inHg

10:00 AM

Overcast

64° 💧 0.000 in 💨 11 mph H 75%30.27 inHg

11:00 AM

Overcast

66° 💧 None 💨 10 mph H 71%30.27 inHg

12:00 PM

Overcast

66° 💧 0.000 in 💨 10 mph H 70%30.27 inHg

1:00 PM

Overcast

67° 💧 None 💨 11 mph H 66%30.27 inHg

2:00 PM

Overcast

68° 💧 None 💨 11 mph H 65%30.24 inHg

3:00 PM

Overcast

68° 💧 None 💨 11 mph H 64%30.24 inHg

4:00 PM

Overcast

68° 💧 None 💨 11 mph H 65%30.24 inHg

5:00 PM

Overcast

67° 💧 None 💨 11 mph H 67%30.24 inHg

6:00 PM

Overcast

66° 💧 None 💨 10 mph H 69%30.24 inHg

7:00 PM

Overcast night

65° 💧 None 💨 8 mph H 72%30.24 inHg

8:00 PM

Overcast night

64° 💧 None 💨 9 mph H 74%30.27 inHg

9:00 PM

Overcast night

64° 💧 None 💨 9 mph H 76%30.27 inHg

10:00 PM

Overcast night

63° 💧 None 💨 8 mph H 78%30.27 inHg

11:00 PM

Mostly clear night

62° 💧 None 💨 8 mph H 80%30.27 inHg

Tomorrow

12:00 AM

Mostly clear night

60° 💧 None 💨 8 mph H 85%30.24 inHg

1:00 AM

Mostly cloudy night

60° 💧 None 💨 7 mph H 86%30.24 inHg

2:00 AM

Mostly cloudy night

60° 💧 None 💨 7 mph H 86%30.24 inHg

3:00 AM

Mostly cloudy night

61° 💧 0.001 in 💨 7 mph H 86%30.24 inHg

4:00 AM

Overcast night

60° 💧 None 💨 7 mph H 88%30.24 inHg

5:00 AM

Overcast night

60° 💧 None 💨 7 mph H 86%30.24 inHg

6:00 AM

Overcast night

59° 💧 None 💨 7 mph H 85%30.24 inHg

7:00 AM

Overcast

59° 💧 None 💨 7 mph H 85%30.27 inHg

8:00 AM

Overcast

60° 💧 None 💨 7 mph H 82%30.27 inHg

9:00 AM

Mostly cloudy

62° 💧 None 💨 7 mph H 76%30.27 inHg

10:00 AM

Mostly sunny

64° 💧 None 💨 7 mph H 72%30.27 inHg

11:00 AM

Sunny

68° 💧 None 💨 7 mph H 67%30.27 inHg

12:00 PM

Sunny

70° 💧 None 💨 7 mph H 64%30.27 inHg

1:00 PM

Mostly cloudy

73° 💧 None 💨 7 mph H 60%30.24 inHg

2:00 PM

Overcast

74° 💧 None 💨 7 mph H 57%30.21 inHg

3:00 PM

Overcast

73° 💧 None 💨 7 mph H 61%30.21 inHg

4:00 PM

Overcast

73° 💧 0.001 in 💨 7 mph H 63%30.21 inHg

5:00 PM

Partly cloudy

72° 💧 None 💨 7 mph H 63%30.21 inHg

6:00 PM

Overcast

71° 💧 None 💨 8 mph H 65%30.21 inHg

7:00 PM

Mostly cloudy night

68° 💧 None 💨 5 mph H 74%30.21 inHg

8:00 PM

Mostly cloudy night

66° 💧 None 💨 6 mph H 78%30.21 inHg

9:00 PM

Mostly clear night

65° 💧 None 💨 5 mph H 81%30.21 inHg

10:00 PM

Mostly cloudy night

65° 💧 None 💨 6 mph H 83%30.24 inHg

11:00 PM

Mostly cloudy night

65° 💧 None 💨 7 mph H 81%30.21 inHg

Friday

12:00 AM

Partly cloudy night

65° 💧 None 💨 7 mph H 81%30.21 inHg

1:00 AM

Mostly clear night

63° 💧 None 💨 6 mph H 85%30.21 inHg

2:00 AM

Mostly clear night

62° 💧 None 💨 5 mph H 88%30.21 inHg

3:00 AM

Mostly cloudy night

61° 💧 None 💨 5 mph H 89%30.21 inHg

4:00 AM

Mostly cloudy night

61° 💧 None 💨 5 mph H 89%30.21 inHg

5:00 AM

Overcast night

61° 💧 0.001 in 💨 5 mph H 89%30.24 inHg

6:00 AM

Mostly cloudy night

61° 💧 None 💨 6 mph H 87%30.24 inHg

7:00 AM

Overcast

60° 💧 None 💨 6 mph H 88%30.24 inHg

8:00 AM

Overcast

61° 💧 None 💨 6 mph H 81%30.27 inHg

9:00 AM

Overcast

62° 💧 None 💨 6 mph H 74%30.27 inHg

10:00 AM

Overcast

62° 💧 None 💨 5 mph H 72%30.27 inHg

11:00 AM

Overcast

63° 💧 None 💨 6 mph H 69%30.27 inHg

12:00 PM

Overcast

63° 💧 None 💨 5 mph H 66%30.27 inHg

1:00 PM

Overcast

63° 💧 None 💨 5 mph H 63%30.27 inHg

2:00 PM

Overcast

64° 💧 None 💨 5 mph H 61%30.24 inHg

3:00 PM

Overcast

64° 💧 None 💨 6 mph H 58%30.21 inHg

4:00 PM

Overcast

65° 💧 None 💨 6 mph H 55%30.21 inHg

5:00 PM

Overcast

65° 💧 None 💨 7 mph H 54%30.21 inHg

6:00 PM

Overcast

63° 💧 None 💨 7 mph H 59%30.21 inHg

7:00 PM

Overcast night

60° 💧 None 💨 7 mph H 66%30.21 inHg

10:00 PM

Mostly cloudy night

56° 💧 None 💨 5 mph H 76%30.21 inHg

Saturday

1:00 AM

Mostly clear night

54° 💧 None 💨 6 mph H 80%30.21 inHg

4:00 AM

Mostly cloudy night

52° 💧 None 💨 6 mph H 86%30.18 inHg

7:00 AM

Sunny

51° 💧 None 💨 6 mph H 90%30.21 inHg

10:00 AM

Mostly sunny

62° 💧 None 💨 6 mph H 66%30.21 inHg

1:00 PM

Partly cloudy

71° 💧 None 💨 5 mph H 46%30.18 inHg

4:00 PM

Partly cloudy

72° 💧 None 💨 6 mph H 43%30.12 inHg

7:00 PM

Overcast night

64° 💧 None 💨 5 mph H 62%30.12 inHg

10:00 PM

Overcast night

59° 💧 None 💨 4 mph H 74%30.12 inHg

Sunday

1:00 AM

Overcast night

59° 💧 None 💨 5 mph H 75%30.12 inHg

4:00 AM

Overcast night

57° 💧 None 💨 5 mph H 84%30.09 inHg

7:00 AM

Mostly cloudy

54° 💧 None 💨 4 mph H 91%30.12 inHg

10:00 AM

Partly cloudy

66° 💧 None 💨 6 mph H 66%30.12 inHg

1:00 PM

Mostly sunny

73° 💧 None 💨 5 mph H 45%30.06 inHg

4:00 PM

Mostly sunny

74° 💧 None 💨 5 mph H 41%30.03 inHg

7:00 PM

Mostly clear night

65° 💧 None 💨 5 mph H 61%30.00 inHg

10:00 PM

Clear night

60° 💧 None 💨 4 mph H 76%30.03 inHg

Monday

1:00 AM

Mostly clear night

57° 💧 None 💨 4 mph H 81%30.03 inHg

4:00 AM

Clear night

54° 💧 None 💨 4 mph H 88%30.03 inHg

7:00 AM

Sunny

53° 💧 None 💨 5 mph H 91%30.03 inHg

10:00 AM

Sunny

67° 💧 None 💨 5 mph H 63%30.03 inHg

1:00 PM

Sunny

74° 💧 None 💨 5 mph H 44%29.97 inHg

4:00 PM

Sunny

75° 💧 None 💨 5 mph H 41%29.91 inHg

7:00 PM

Mostly clear night

66° 💧 None 💨 5 mph H 60%29.91 inHg

Tuesday

1:00 AM

Partly cloudy night

62° 💧 None 💨 7 mph H 67%29.91 inHg

7:00 AM

Overcast

59° 💧 None 💨 8 mph H 82%29.88 inHg

1:00 PM

Moderate rain

74° 💧 None 💨 10 mph H 72%29.80 inHg

7:00 PM

Moderate rain

68° 💧 None 💨 8 mph H 96%29.77 inHg

Wednesday

1:00 AM

Light rain

67° 💧 None 💨 8 mph H 97%29.68 inHg

7:00 AM

Moderate rain

68° 💧 None 💨 15 mph H 96%29.62 inHg

1:00 PM

Overcast

72° 💧 None 💨 12 mph H 88%29.62 inHg

7:00 PM

Light rain

67° 💧 None 💨 6 mph H 96%29.62 inHg

Thursday

1:00 AM

Light rain

64° 💧 None 💨 11 mph H 96%29.62 inHg

7:00 AM

Overcast

61° 💧 None 💨 10 mph H 93%29.71 inHg

1:00 PM

Partly cloudy

66° 💧 None 💨 12 mph H 71%29.80 inHg

7:00 PM

Mostly cloudy night

62° 💧 None 💨 9 mph H 62%29.85 inHg

Friday

1:00 AM

Clear night

55° 💧 None 💨 9 mph H 73%29.94 inHg

7:00 AM

Sunny

49° 💧 None 💨 8 mph H 81%30.03 inHg

1:00 PM

Sunny

62° 💧 None 💨 10 mph H 49%30.06 inHg

7:00 PM

Partly cloudy night

57° 💧 None 💨 4 mph H 61%30.09 inHg

Saturday

1:00 AM

Clear night

50° 💧 None 💨 3 mph H 86%30.12 inHg

7:00 AM

Sunny

46° 💧 None 💨 2 mph H 95%30.21 inHg

1:00 PM

Overcast

62° 💧 None 💨 4 mph H 49%30.24 inHg

7:00 PM

Overcast night

57° 💧 None 💨 2 mph H 68%30.21 inHg

Sunday

1:00 AM

Mostly clear night

52° 💧 None 💨 0 mph H 75%30.24 inHg

7:00 AM

Mostly cloudy

48° 💧 None 💨 4 mph H 87%30.27 inHg

1:00 PM

Sunny

66° 💧 None 💨 4 mph H 47%30.27 inHg

7:00 PM

Partly cloudy night

59° 💧 None 💨 4 mph H 67%30.18 inHg

Monday

1:00 AM

Overcast night

53° 💧 None 💨 7 mph H 77%30.18 inHg

7:00 AM

Overcast

55° 💧 None 💨 10 mph H 70%30.18 inHg

1:00 PM

Mostly cloudy

72° 💧 None 💨 11 mph H 57%30.15 inHg

7:00 PM

Clear night

67° 💧 None 💨 8 mph H 73%30.06 inHg

Tuesday

1:00 AM

Clear night

62° 💧 None 💨 11 mph H 82%30.06 inHg

7:00 AM

Sunny

60° 💧 None 💨 11 mph H 81%30.03 inHg

1:00 PM

Sunny

78° 💧 None 💨 12 mph H 56%29.97 inHg

7:00 PM

Mostly clear night

72° 💧 None 💨 9 mph H 75%29.94 inHg

Wednesday

1:00 AM

Clear night

56° 💧 None 💨 10 mph H 60%30.06 inHg

7:00 AM

Sunny

49° 💧 None 💨 9 mph H 69%30.12 inHg

1:00 PM

Sunny

61° 💧 None 💨 12 mph H 38%30.12 inHg

7:00 PM

Clear night

55° 💧 None 💨 10 mph H 47%30.09 inHg

In Mattoon and, more broadly, across the state of Illinois: This morning begins with mostly cloudy skies and mild temperatures ranging from 60 to 69 degrees Fahrenheit. Winds will be coming from the northeast at around 11 mph, with gusts reaching up to 21 mph. As the day progresses into the afternoon, the cloud cover is expected to persist, but no precipitation is anticipated. Temperatures are likely to remain steady within the mild range, providing comfortable conditions for outdoor activities. Winds will continue from the northeast, maintaining a moderate breeze throughout the day. Overall, it will be a relatively calm day with partly cloudy skies and no significant weather disruptions.

15-Day Weather Outlook for Mattoon

TomorrowTomorrow

Mostly sunny 74°/59° 💧 None 💨 8 mph

Friday, Sep 25Fri Sep 25

Partly cloudy 65°/56° 💧 0.012 in 💨 7 mph

Saturday, Sep 26Sat Sep 26

Mostly sunny 72°/51° 💧 None 💨 6 mph

Sunday, Sep 27Sun Sep 27

Overcast 74°/54° 💧 None 💨 6 mph

Monday, Sep 28Mon Sep 28

Mostly sunny 75°/53° 💧 None 💨 5 mph

Tuesday, Sep 29Tue Sep 29

Moderate rain 74°/59° 💧 0.225 in 💨 10 mph

Wednesday, Sep 30Wed Sep 30

Moderate rain 72°/67° 💧 1.316 in 💨 15 mph

Thursday, Oct 1Thu Oct 1

Light rain 66°/61° 💧 0.105 in 💨 12 mph

Friday, Oct 2Fri Oct 2

Partly cloudy 62°/49° 💧 None 💨 10 mph

Saturday, Oct 3Sat Oct 3

Overcast 62°/46° 💧 None 💨 4 mph

Sunday, Oct 4Sun Oct 4

Mostly sunny 66°/48° 💧 None 💨 4 mph

Monday, Oct 5Mon Oct 5

Overcast 72°/53° 💧 None 💨 11 mph

Tuesday, Oct 6Tue Oct 6

Mostly sunny 78°/60° 💧 0.005 in 💨 12 mph

Wednesday, Oct 7Wed Oct 7

Sunny 61°/49° 💧 None 💨 12 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Mattoon

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Mattoon

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 7:00 AM

PM2.5 Fine particles Good 3,1µg/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 3,7µg/m³

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

O₃ Ozone Good 46,1µg/m³

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

NO₂ Nitrogen dioxide Good 3,7µg/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 Mattoon

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 4,5Moderate 😊Good

Tomorrow UV 5,9Moderate 🙂Fair

Friday UV 5,2Moderate 🙂Fair

Saturday UV 0,9Low 😐Moderate

Sunday UV 4,0Moderate 🙂Fair

Monday UV 5,0Moderate —Unavailable

Tuesday UV 5,0Moderate —Unavailable

Hourly UV index today

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

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

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

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 Mattoon

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · MATTOON, ILLINOIS

Tonight's Stargazing & Shooting Stars

Good observing conditions. Best local viewing window: 11:00 PM–12:00 AM.

74/100Best-hour score

BEST TIME TONIGHT 11:00 PM–12:00 AM Astronomical darkness: 8:19 PM–5:13 AM

☁ Cloud cover 22% Real hourly forecast for the best viewing hour.

☾ Moonlight 93% Waxing Gibbous · Moon about 39° above the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 19° high at the best hour.

✦ Estimated visible meteors 0–1/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min16%

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

SEP 20–NOV 20

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

ACTIVE NOW

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

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% 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 Mattoon were last refreshed today at 6:50 AM. The current forecast period extends through 25/09/2026 at 4:00 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.