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Current weather in Flanagan is clear sky.

Where can I find the hourly weather forecast for Flanagan?

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

Is the weather forecast for Flanagan updated regularly?

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

Now · 11:29 PM

Flanagan Weather & Hourly Forecast

United States · Illinois · 61740

71°F

Clear night

Feels like: 74°F

💧 Humidity 92% 🌡 Pressure 30.24 inHg 💨 Wind 6 mph 👁 Visibility 11.8 mi ☁ Clouds 10% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Flanagan

Tomorrow

12:00 AM

Partly cloudy night

70° 💧 0.013 in 💨 6 mph H 92%30.21 inHg

3:00 AM

Mostly cloudy night

70° 💧 0.001 in 💨 4 mph H 95%30.18 inHg

6:00 AM

Overcast night

72° 💧 0.007 in 💨 5 mph H 93%30.18 inHg

9:00 AM

Overcast

77° 💧 0.000 in 💨 7 mph H 87%30.15 inHg

12:00 PM

Sunny

85° 💧 None 💨 6 mph H 70%30.15 inHg

3:00 PM

Light thunderstorms

86° 💧 0.051 in 💨 9 mph H 66%30.12 inHg

6:00 PM

Light rain

78° 💧 0.015 in 💨 8 mph H 90%30.12 inHg

9:00 PM

Mostly clear night

75° 💧 0.000 in 💨 5 mph H 95%30.15 inHg

Friday

12:00 AM

Overcast night

72° 💧 None 💨 8 mph H 97%30.18 inHg

3:00 AM

Overcast night

70° 💧 0.000 in 💨 8 mph H 90%30.21 inHg

6:00 AM

Overcast night

69° 💧 0.000 in 💨 7 mph H 89%30.21 inHg

9:00 AM

Overcast

71° 💧 0.000 in 💨 9 mph H 85%30.21 inHg

12:00 PM

Overcast

77° 💧 0.001 in 💨 7 mph H 71%30.18 inHg

3:00 PM

Overcast

79° 💧 None 💨 7 mph H 66%30.12 inHg

6:00 PM

Partly cloudy

76° 💧 None 💨 11 mph H 72%30.09 inHg

9:00 PM

Mostly clear night

71° 💧 None 💨 10 mph H 79%30.09 inHg

Tomorrow

12:00 AM

Partly cloudy night

70° 💧 None 💨 6 mph H 92%30.21 inHg

1:00 AM

Overcast night

70° 💧 0.001 in 💨 5 mph H 93%30.21 inHg

2:00 AM

Light rain

70° 💧 0.013 in 💨 5 mph H 94%30.18 inHg

3:00 AM

Mostly cloudy night

70° 💧 0.001 in 💨 4 mph H 95%30.18 inHg

4:00 AM

Partly cloudy night

70° 💧 None 💨 3 mph H 95%30.18 inHg

5:00 AM

Mostly cloudy night

71° 💧 None 💨 4 mph H 94%30.18 inHg

6:00 AM

Overcast night

72° 💧 None 💨 5 mph H 93%30.18 inHg

7:00 AM

Light thunderstorms

72° 💧 0.007 in 💨 2 mph H 94%30.18 inHg

8:00 AM

Overcast

74° 💧 None 💨 7 mph H 91%30.18 inHg

9:00 AM

Overcast

77° 💧 0.000 in 💨 7 mph H 87%30.15 inHg

10:00 AM

Mostly cloudy

81° 💧 None 💨 7 mph H 80%30.18 inHg

11:00 AM

Partly cloudy

83° 💧 None 💨 6 mph H 75%30.18 inHg

12:00 PM

Sunny

85° 💧 None 💨 6 mph H 70%30.15 inHg

1:00 PM

Partly cloudy

87° 💧 None 💨 8 mph H 66%30.15 inHg

2:00 PM

Partly cloudy

87° 💧 None 💨 9 mph H 64%30.12 inHg

3:00 PM

Light thunderstorms

86° 💧 0.005 in 💨 9 mph H 66%30.12 inHg

4:00 PM

Light thunderstorms

85° 💧 0.018 in 💨 8 mph H 70%30.12 inHg

5:00 PM

Light thunderstorms

80° 💧 0.028 in 💨 10 mph H 83%30.12 inHg

6:00 PM

Light rain

78° 💧 0.013 in 💨 8 mph H 90%30.12 inHg

7:00 PM

Partly cloudy

77° 💧 0.001 in 💨 4 mph H 93%30.12 inHg

8:00 PM

Partly cloudy night

75° 💧 0.000 in 💨 4 mph H 95%30.15 inHg

9:00 PM

Mostly clear night

75° 💧 0.000 in 💨 5 mph H 95%30.15 inHg

10:00 PM

Mostly clear night

74° 💧 None 💨 6 mph H 95%30.18 inHg

11:00 PM

Mostly clear night

73° 💧 None 💨 7 mph H 95%30.18 inHg

Friday

12:00 AM

Overcast night

72° 💧 None 💨 8 mph H 97%30.18 inHg

1:00 AM

Overcast night

70° 💧 None 💨 9 mph H 96%30.21 inHg

2:00 AM

Overcast night

70° 💧 None 💨 8 mph H 92%30.21 inHg

3:00 AM

Overcast night

70° 💧 None 💨 8 mph H 90%30.21 inHg

4:00 AM

Overcast night

69° 💧 0.000 in 💨 7 mph H 89%30.18 inHg

5:00 AM

Overcast night

69° 💧 0.000 in 💨 7 mph H 89%30.21 inHg

6:00 AM

Overcast night

69° 💧 0.000 in 💨 7 mph H 89%30.21 inHg

7:00 AM

Overcast

69° 💧 None 💨 7 mph H 90%30.21 inHg

8:00 AM

Overcast

70° 💧 0.000 in 💨 7 mph H 89%30.21 inHg

9:00 AM

Overcast

71° 💧 0.000 in 💨 9 mph H 85%30.21 inHg

10:00 AM

Overcast

73° 💧 None 💨 9 mph H 82%30.21 inHg

11:00 AM

Overcast

75° 💧 0.000 in 💨 8 mph H 74%30.21 inHg

12:00 PM

Overcast

77° 💧 0.001 in 💨 7 mph H 71%30.18 inHg

1:00 PM

Overcast

77° 💧 0.000 in 💨 6 mph H 69%30.18 inHg

2:00 PM

Overcast

78° 💧 None 💨 6 mph H 67%30.15 inHg

3:00 PM

Overcast

79° 💧 None 💨 7 mph H 66%30.12 inHg

4:00 PM

Overcast

79° 💧 None 💨 8 mph H 66%30.09 inHg

5:00 PM

Overcast

77° 💧 None 💨 10 mph H 69%30.09 inHg

6:00 PM

Partly cloudy

76° 💧 None 💨 11 mph H 72%30.09 inHg

7:00 PM

Sunny

74° 💧 None 💨 9 mph H 75%30.09 inHg

8:00 PM

Mostly clear night

72° 💧 None 💨 10 mph H 77%30.09 inHg

9:00 PM

Mostly clear night

71° 💧 None 💨 10 mph H 79%30.09 inHg

10:00 PM

Mostly cloudy night

70° 💧 None 💨 10 mph H 79%30.09 inHg

11:00 PM

Mostly cloudy night

69° 💧 None 💨 10 mph H 81%30.09 inHg

Saturday

12:00 AM

Clear night

69° 💧 None 💨 9 mph H 83%30.06 inHg

1:00 AM

Clear night

68° 💧 None 💨 9 mph H 85%30.06 inHg

2:00 AM

Mostly clear night

68° 💧 None 💨 10 mph H 86%30.03 inHg

3:00 AM

Overcast night

67° 💧 0.002 in 💨 5 mph H 88%30.03 inHg

4:00 AM

Overcast night

67° 💧 0.002 in 💨 8 mph H 89%30.00 inHg

5:00 AM

Overcast night

68° 💧 0.000 in 💨 9 mph H 89%30.00 inHg

6:00 AM

Mostly cloudy night

68° 💧 None 💨 10 mph H 90%29.97 inHg

7:00 AM

Mostly cloudy

69° 💧 None 💨 9 mph H 93%29.97 inHg

4:00 PM

Mostly cloudy

87° 💧 None 💨 10 mph H 61%29.80 inHg

7:00 PM

Mostly clear night

82° 💧 None 💨 9 mph H 69%29.77 inHg

10:00 PM

Moderate rain

73° 💧 None 💨 3 mph H 98%29.85 inHg

Sunday

1:00 AM

Light rain

72° 💧 None 💨 4 mph H 97%29.85 inHg

4:00 AM

Moderate rain

71° 💧 None 💨 4 mph H 98%29.85 inHg

7:00 AM

Light rain

70° 💧 None 💨 4 mph H 99%29.88 inHg

10:00 AM

Light rain

68° 💧 None 💨 10 mph H 94%29.97 inHg

1:00 PM

Light rain

70° 💧 None 💨 12 mph H 82%29.97 inHg

4:00 PM

Overcast

71° 💧 None 💨 12 mph H 74%29.94 inHg

7:00 PM

Overcast night

68° 💧 None 💨 12 mph H 76%29.97 inHg

10:00 PM

Mostly cloudy night

65° 💧 None 💨 11 mph H 83%30.00 inHg

Monday

1:00 AM

Light rain

64° 💧 None 💨 11 mph H 91%30.00 inHg

4:00 AM

Light rain

63° 💧 None 💨 11 mph H 91%30.00 inHg

7:00 AM

Light rain

60° 💧 None 💨 13 mph H 92%30.03 inHg

10:00 AM

Moderate rain

60° 💧 None 💨 13 mph H 93%30.06 inHg

1:00 PM

Moderate rain

60° 💧 None 💨 12 mph H 92%30.06 inHg

4:00 PM

Light rain

60° 💧 None 💨 14 mph H 88%30.03 inHg

7:00 PM

Light rain

59° 💧 None 💨 13 mph H 91%30.03 inHg

10:00 PM

Overcast night

59° 💧 None 💨 13 mph H 90%30.09 inHg

Tuesday

1:00 AM

Light rain

59° 💧 None 💨 13 mph H 93%30.09 inHg

4:00 AM

Overcast night

58° 💧 None 💨 13 mph H 87%30.09 inHg

7:00 AM

Overcast

58° 💧 None 💨 12 mph H 83%30.12 inHg

10:00 AM

Overcast

60° 💧 None 💨 13 mph H 75%30.15 inHg

1:00 PM

Moderate rain

64° 💧 None 💨 13 mph H 77%30.15 inHg

7:00 PM

Partly cloudy night

66° 💧 None 💨 13 mph H 56%30.21 inHg

Wednesday

1:00 AM

Clear night

60° 💧 None 💨 10 mph H 68%30.21 inHg

7:00 AM

Sunny

53° 💧 None 💨 6 mph H 91%30.27 inHg

1:00 PM

Sunny

51° 💧 None 💨 8 mph H 91%30.30 inHg

7:00 PM

Partly cloudy night

67° 💧 None 💨 14 mph H 56%30.27 inHg

Thursday

1:00 AM

Clear night

60° 💧 None 💨 8 mph H 71%30.27 inHg

7:00 AM

Mostly sunny

54° 💧 None 💨 7 mph H 90%30.24 inHg

1:00 PM

Mostly sunny

53° 💧 None 💨 7 mph H 94%30.27 inHg

7:00 PM

Overcast night

65° 💧 None 💨 11 mph H 70%30.24 inHg

Friday

1:00 AM

Overcast night

62° 💧 None 💨 9 mph H 76%30.24 inHg

7:00 AM

Overcast

59° 💧 None 💨 6 mph H 82%30.24 inHg

1:00 PM

Overcast

58° 💧 None 💨 7 mph H 83%30.24 inHg

7:00 PM

Overcast night

68° 💧 None 💨 9 mph H 65%30.24 inHg

Saturday

1:00 AM

Clear night

64° 💧 None 💨 8 mph H 71%30.21 inHg

7:00 AM

Sunny

55° 💧 None 💨 6 mph H 82%30.27 inHg

1:00 PM

Overcast

55° 💧 None 💨 7 mph H 91%30.33 inHg

7:00 PM

Partly cloudy night

68° 💧 None 💨 9 mph H 59%30.30 inHg

Sunday

1:00 AM

Clear night

61° 💧 None 💨 7 mph H 73%30.27 inHg

7:00 AM

Sunny

49° 💧 None 💨 3 mph H 93%30.27 inHg

1:00 PM

Sunny

47° 💧 None 💨 2 mph H 99%30.27 inHg

7:00 PM

Clear night

66° 💧 None 💨 3 mph H 58%30.24 inHg

Monday

1:00 AM

Clear night

60° 💧 None 💨 4 mph H 76%30.18 inHg

7:00 AM

Sunny

52° 💧 None 💨 5 mph H 87%30.18 inHg

1:00 PM

Sunny

47° 💧 None 💨 4 mph H 91%30.24 inHg

7:00 PM

Mostly clear night

68° 💧 None 💨 4 mph H 46%30.21 inHg

Tuesday

1:00 AM

Partly cloudy night

60° 💧 None 💨 4 mph H 68%30.15 inHg

7:00 AM

Sunny

52° 💧 None 💨 6 mph H 81%30.21 inHg

1:00 PM

Sunny

47° 💧 None 💨 5 mph H 90%30.24 inHg

7:00 PM

Clear night

74° 💧 None 💨 4 mph H 48%30.21 inHg

Wednesday

1:00 AM

Clear night

64° 💧 None 💨 5 mph H 67%30.15 inHg

7:00 AM

Sunny

59° 💧 None 💨 7 mph H 67%30.15 inHg

1:00 PM

Sunny

54° 💧 None 💨 6 mph H 79%30.18 inHg

7:00 PM

Clear night

76° 💧 None 💨 6 mph H 44%30.15 inHg

Thursday

1:00 AM

Clear night

66° 💧 None 💨 5 mph H 64%30.12 inHg

7:00 AM

Overcast

59° 💧 None 💨 6 mph H 75%30.15 inHg

1:00 PM

Partly cloudy

54° 💧 None 💨 4 mph H 92%30.21 inHg

In Flanagan and, more broadly, across the state of Illinois: This evening will be mostly clear with just a few clouds drifting across the sky. Temperatures are expected to remain mild to warm, settling between 80 and 82 degrees Fahrenheit. Light northeast winds will persist, blowing at around 9 mph, with occasional gusts reaching up to 15 mph. No precipitation is anticipated during the upcoming hours, making for a calm and pleasant evening. As night falls, conditions will likely remain comfortable, with temperatures gradually cooling into the low 70s. Overall, it should be a peaceful night with clear skies and gentle breezes.

15-Day Weather Outlook for Flanagan

TomorrowTomorrow

Light thunderstorms 87°/70° 💧 None 💨 10 mph

Friday, Sep 18Fri Sep 18

Overcast 79°/69° 💧 None 💨 11 mph

Saturday, Sep 19Sat Sep 19

Moderate rain 87°/67° 💧 0.615 in 💨 10 mph

Sunday, Sep 20Sun Sep 20

Moderate rain 72°/65° 💧 0.539 in 💨 12 mph

Monday, Sep 21Mon Sep 21

Moderate rain 64°/59° 💧 0.929 in 💨 14 mph

Tuesday, Sep 22Tue Sep 22

Moderate rain 66°/58° 💧 0.278 in 💨 13 mph

Wednesday, Sep 23Wed Sep 23

Partly cloudy 67°/51° 💧 0.000 in 💨 14 mph

Thursday, Sep 24Thu Sep 24

Overcast 65°/53° 💧 0.001 in 💨 11 mph

Friday, Sep 25Fri Sep 25

Overcast 68°/58° 💧 0.002 in 💨 9 mph

Saturday, Sep 26Sat Sep 26

Overcast 68°/55° 💧 0.004 in 💨 9 mph

Sunday, Sep 27Sun Sep 27

Sunny 66°/47° 💧 None 💨 7 mph

Monday, Sep 28Mon Sep 28

Mostly sunny 68°/47° 💧 None 💨 5 mph

Tuesday, Sep 29Tue Sep 29

Partly cloudy 74°/47° 💧 None 💨 6 mph

Wednesday, Sep 30Wed Sep 30

Sunny 76°/54° 💧 0.001 in 💨 7 mph

Thursday, Oct 1Thu Oct 1

Overcast 66°/54° 💧 None 💨 6 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Flanagan

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Flanagan

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 12:00 AM

PM2.5 Fine particles Good 8,7µg/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 9,5µg/m³

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

O₃ Ozone Good 41,3µg/m³

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

NO₂ Nitrogen dioxide Good 9,2µg/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 Flanagan

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 3,8Moderate —Unavailable

Tomorrow UV 3,3Moderate 🙂Fair

Friday UV 6,5High 😐Moderate

Saturday UV 4,1Moderate 🙂Fair

Sunday UV 6,2High 🙂Fair

Monday UV 4,0Moderate —Unavailable

Tuesday UV 5,0Moderate —Unavailable

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 Flanagan

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · FLANAGAN, ILLINOIS

Tonight's Stargazing & Shooting Stars

Good observing conditions. Best local viewing window: 12:00 AM–1:00 AM.

66/100Best-hour score

BEST TIME TONIGHT 12:00 AM–1:00 AM Astronomical darkness: 8:36 PM–5:05 AM

☁ Cloud cover 43% Real hourly forecast for the best viewing hour.

☾ Moonlight 29% Waxing Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 41° high at the best hour.

✦ Estimated visible meteors 1–2/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min52%

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 Flanagan were last refreshed today at 11:29 PM. The current forecast period extends through 18/09/2026 at 9:00 PM. 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.