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

Now · 2:20 PM

Long Lake Weather & Hourly Forecast

United States · Illinois · 60041

75°F

Mostly sunny

Feels like: 76°F

💧 Humidity 52% 🌡 Pressure 30.00 inHg 💨 Wind 2 mph 👁 Visibility 24.8 mi ☁ Clouds 23% ☀️ UV index 5.2 · Moderate 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Long Lake

Today

3:00 PM

Sunny

76° 💧 None 💨 2 mph H 51%30.00 inHg

6:00 PM

Mostly sunny

74° 💧 None 💨 2 mph H 62%29.97 inHg

9:00 PM

Clear night

66° 💧 None 💨 4 mph H 83%30.00 inHg

Tomorrow

12:00 AM

Clear night

65° 💧 None 💨 3 mph H 90%30.03 inHg

3:00 AM

Clear night

64° 💧 None 💨 4 mph H 93%30.03 inHg

6:00 AM

Clear night

62° 💧 None 💨 3 mph H 95%30.03 inHg

9:00 AM

Sunny

68° 💧 None 💨 4 mph H 78%30.03 inHg

12:00 PM

Sunny

75° 💧 None 💨 6 mph H 54%30.00 inHg

3:00 PM

Sunny

76° 💧 None 💨 7 mph H 53%29.94 inHg

6:00 PM

Sunny

73° 💧 None 💨 6 mph H 64%29.88 inHg

9:00 PM

Clear night

67° 💧 None 💨 7 mph H 80%29.88 inHg

Saturday

12:00 AM

Overcast night

66° 💧 None 💨 4 mph H 87%29.88 inHg

3:00 AM

Mostly cloudy night

66° 💧 None 💨 5 mph H 87%29.85 inHg

6:00 AM

Mostly cloudy night

65° 💧 None 💨 6 mph H 90%29.85 inHg

9:00 AM

Mostly sunny

72° 💧 None 💨 7 mph H 80%29.85 inHg

12:00 PM

Partly cloudy

80° 💧 0.003 in 💨 12 mph H 65%29.85 inHg

Today

3:00 PM

Sunny

76° 💧 None 💨 2 mph H 51%30.00 inHg

4:00 PM

Mostly sunny

76° 💧 None 💨 3 mph H 51%29.97 inHg

5:00 PM

Mostly cloudy

76° 💧 None 💨 3 mph H 51%29.97 inHg

6:00 PM

Mostly sunny

74° 💧 None 💨 2 mph H 62%29.97 inHg

7:00 PM

Mostly sunny

70° 💧 None 💨 5 mph H 76%29.97 inHg

8:00 PM

Clear night

67° 💧 None 💨 6 mph H 80%30.00 inHg

9:00 PM

Clear night

66° 💧 None 💨 4 mph H 83%30.00 inHg

10:00 PM

Clear night

66° 💧 None 💨 4 mph H 86%30.03 inHg

11:00 PM

Clear night

65° 💧 None 💨 3 mph H 88%30.03 inHg

Tomorrow

12:00 AM

Clear night

65° 💧 None 💨 3 mph H 90%30.03 inHg

1:00 AM

Clear night

64° 💧 None 💨 3 mph H 91%30.03 inHg

2:00 AM

Clear night

64° 💧 None 💨 4 mph H 92%30.03 inHg

3:00 AM

Clear night

64° 💧 None 💨 4 mph H 93%30.03 inHg

4:00 AM

Clear night

63° 💧 None 💨 4 mph H 93%30.03 inHg

5:00 AM

Clear night

63° 💧 None 💨 4 mph H 94%30.03 inHg

6:00 AM

Clear night

62° 💧 None 💨 3 mph H 95%30.03 inHg

7:00 AM

Sunny

62° 💧 None 💨 3 mph H 95%30.03 inHg

8:00 AM

Sunny

65° 💧 None 💨 4 mph H 89%30.03 inHg

9:00 AM

Sunny

68° 💧 None 💨 4 mph H 78%30.03 inHg

10:00 AM

Sunny

71° 💧 None 💨 5 mph H 66%30.00 inHg

11:00 AM

Sunny

73° 💧 None 💨 6 mph H 58%30.00 inHg

12:00 PM

Sunny

75° 💧 None 💨 6 mph H 54%30.00 inHg

1:00 PM

Sunny

76° 💧 None 💨 6 mph H 53%29.97 inHg

2:00 PM

Sunny

76° 💧 None 💨 7 mph H 52%29.94 inHg

3:00 PM

Sunny

76° 💧 None 💨 7 mph H 53%29.94 inHg

4:00 PM

Sunny

76° 💧 None 💨 7 mph H 55%29.91 inHg

5:00 PM

Sunny

75° 💧 None 💨 7 mph H 57%29.91 inHg

6:00 PM

Sunny

73° 💧 None 💨 6 mph H 64%29.88 inHg

7:00 PM

Sunny

69° 💧 None 💨 6 mph H 73%29.88 inHg

8:00 PM

Clear night

67° 💧 None 💨 5 mph H 78%29.88 inHg

9:00 PM

Clear night

67° 💧 None 💨 7 mph H 80%29.88 inHg

10:00 PM

Clear night

67° 💧 None 💨 7 mph H 81%29.88 inHg

11:00 PM

Mostly cloudy night

67° 💧 None 💨 6 mph H 83%29.88 inHg

Saturday

12:00 AM

Overcast night

66° 💧 None 💨 4 mph H 87%29.88 inHg

1:00 AM

Overcast night

66° 💧 None 💨 5 mph H 86%29.85 inHg

2:00 AM

Overcast night

67° 💧 None 💨 6 mph H 85%29.85 inHg

3:00 AM

Mostly cloudy night

66° 💧 None 💨 5 mph H 87%29.85 inHg

4:00 AM

Partly cloudy night

66° 💧 None 💨 6 mph H 88%29.85 inHg

5:00 AM

Mostly clear night

65° 💧 None 💨 6 mph H 89%29.85 inHg

6:00 AM

Mostly cloudy night

65° 💧 None 💨 6 mph H 90%29.85 inHg

7:00 AM

Mostly cloudy

66° 💧 None 💨 6 mph H 90%29.85 inHg

8:00 AM

Sunny

68° 💧 None 💨 7 mph H 86%29.85 inHg

9:00 AM

Mostly sunny

72° 💧 None 💨 7 mph H 80%29.85 inHg

10:00 AM

Partly cloudy

75° 💧 None 💨 8 mph H 75%29.85 inHg

11:00 AM

Partly cloudy

78° 💧 None 💨 11 mph H 71%29.85 inHg

12:00 PM

Partly cloudy

80° 💧 None 💨 12 mph H 65%29.85 inHg

1:00 PM

Mostly cloudy

82° 💧 None 💨 12 mph H 60%29.85 inHg

2:00 PM

Mostly cloudy

81° 💧 0.003 in 💨 12 mph H 62%29.83 inHg

3:00 PM

Light rain

82° 💧 0.007 in 💨 12 mph H 61%29.83 inHg

4:00 PM

Light rain

80° 💧 0.013 in 💨 10 mph H 66%29.83 inHg

5:00 PM

Light rain

79° 💧 0.004 in 💨 10 mph H 70%29.83 inHg

6:00 PM

Sunny

78° 💧 None 💨 8 mph H 75%29.85 inHg

7:00 PM

Sunny

75° 💧 None 💨 6 mph H 81%29.85 inHg

8:00 PM

Clear night

73° 💧 None 💨 6 mph H 87%29.88 inHg

9:00 PM

Clear night

72° 💧 None 💨 6 mph H 88%29.91 inHg

10:00 PM

Clear night

71° 💧 None 💨 6 mph H 89%29.94 inHg

11:00 PM

Clear night

70° 💧 None 💨 6 mph H 86%29.94 inHg

Sunday

12:00 AM

Clear night

68° 💧 None 💨 7 mph H 81%29.94 inHg

1:00 AM

Clear night

66° 💧 None 💨 7 mph H 78%29.97 inHg

2:00 AM

Mostly clear night

65° 💧 None 💨 7 mph H 75%29.97 inHg

3:00 AM

Mostly clear night

64° 💧 None 💨 6 mph H 76%29.97 inHg

4:00 AM

Mostly clear night

63° 💧 None 💨 6 mph H 78%30.00 inHg

5:00 AM

Partly cloudy night

62° 💧 None 💨 7 mph H 80%30.00 inHg

6:00 AM

Mostly cloudy night

61° 💧 None 💨 6 mph H 84%30.03 inHg

7:00 AM

Partly cloudy

61° 💧 None 💨 6 mph H 85%30.03 inHg

10:00 AM

Mostly sunny

68° 💧 None 💨 3 mph H 68%30.09 inHg

1:00 PM

Overcast

74° 💧 None 💨 3 mph H 51%30.06 inHg

4:00 PM

Overcast

74° 💧 None 💨 6 mph H 50%30.03 inHg

7:00 PM

Overcast

65° 💧 None 💨 8 mph H 72%30.06 inHg

10:00 PM

Overcast night

59° 💧 None 💨 9 mph H 95%30.12 inHg

Monday

1:00 AM

Moderate rain

60° 💧 None 💨 6 mph H 96%30.12 inHg

4:00 AM

Moderate rain

60° 💧 None 💨 9 mph H 96%30.12 inHg

7:00 AM

Moderate rain

61° 💧 None 💨 9 mph H 96%30.12 inHg

10:00 AM

Moderate rain

61° 💧 None 💨 10 mph H 96%30.15 inHg

1:00 PM

Overcast

64° 💧 None 💨 9 mph H 83%30.12 inHg

4:00 PM

Mostly cloudy

70° 💧 None 💨 10 mph H 79%30.00 inHg

7:00 PM

Sunny

69° 💧 None 💨 8 mph H 90%29.97 inHg

10:00 PM

Clear night

72° 💧 None 💨 11 mph H 88%29.91 inHg

Tuesday

1:00 AM

Overcast night

77° 💧 None 💨 14 mph H 78%29.94 inHg

4:00 AM

Overcast night

76° 💧 None 💨 14 mph H 81%29.91 inHg

7:00 AM

Overcast

75° 💧 None 💨 10 mph H 84%29.97 inHg

10:00 AM

Overcast

78° 💧 None 💨 9 mph H 80%30.00 inHg

1:00 PM

Overcast

76° 💧 None 💨 8 mph H 82%30.06 inHg

4:00 PM

Light rain

73° 💧 None 💨 9 mph H 65%30.09 inHg

7:00 PM

Overcast

66° 💧 None 💨 7 mph H 75%30.12 inHg

10:00 PM

Heavy rain

63° 💧 None 💨 6 mph H 96%30.18 inHg

Wednesday

1:00 AM

Heavy rain

61° 💧 None 💨 3 mph H 94%30.21 inHg

7:00 AM

Light rain

62° 💧 None 💨 4 mph H 95%30.18 inHg

1:00 PM

Mostly cloudy

61° 💧 None 💨 4 mph H 97%30.24 inHg

7:00 PM

Overcast

69° 💧 None 💨 9 mph H 78%30.24 inHg

Thursday

1:00 AM

Overcast night

65° 💧 None 💨 7 mph H 82%30.21 inHg

7:00 AM

Moderate rain

63° 💧 None 💨 5 mph H 98%30.12 inHg

1:00 PM

Light rain

63° 💧 None 💨 7 mph H 99%30.06 inHg

7:00 PM

Mostly cloudy

69° 💧 None 💨 10 mph H 71%30.12 inHg

Friday

1:00 AM

Partly cloudy night

65° 💧 None 💨 5 mph H 74%30.18 inHg

7:00 AM

Sunny

57° 💧 None 💨 4 mph H 94%30.24 inHg

1:00 PM

Sunny

53° 💧 None 💨 4 mph H 91%30.27 inHg

7:00 PM

Mostly clear night

70° 💧 None 💨 1 mph H 49%30.27 inHg

Saturday

1:00 AM

Clear night

64° 💧 None 💨 1 mph H 70%30.18 inHg

7:00 AM

Sunny

57° 💧 None 💨 4 mph H 85%30.21 inHg

1:00 PM

Sunny

54° 💧 None 💨 4 mph H 89%30.24 inHg

7:00 PM

Mostly cloudy night

71° 💧 None 💨 2 mph H 53%30.21 inHg

Sunday

1:00 AM

Mostly clear night

65° 💧 None 💨 2 mph H 75%30.15 inHg

7:00 AM

Sunny

59° 💧 None 💨 1 mph H 83%30.18 inHg

1:00 PM

Sunny

56° 💧 None 💨 4 mph H 88%30.21 inHg

7:00 PM

Mostly clear night

71° 💧 None 💨 7 mph H 64%30.21 inHg

Monday

1:00 AM

Clear night

64° 💧 None 💨 5 mph H 75%30.21 inHg

7:00 AM

Sunny

61° 💧 None 💨 5 mph H 87%30.24 inHg

1:00 PM

Sunny

58° 💧 None 💨 4 mph H 92%30.30 inHg

7:00 PM

Clear night

72° 💧 None 💨 8 mph H 61%30.30 inHg

Tuesday

1:00 AM

Clear night

64° 💧 None 💨 6 mph H 82%30.27 inHg

7:00 AM

Sunny

63° 💧 None 💨 6 mph H 92%30.30 inHg

1:00 PM

Sunny

56° 💧 None 💨 3 mph H 90%30.33 inHg

7:00 PM

Clear night

73° 💧 None 💨 6 mph H 61%30.33 inHg

Wednesday

1:00 AM

Clear night

64° 💧 None 💨 4 mph H 80%30.24 inHg

7:00 AM

Partly cloudy

60° 💧 None 💨 1 mph H 91%30.21 inHg

1:00 PM

Overcast

56° 💧 None 💨 4 mph H 96%30.21 inHg

7:00 PM

Clear night

76° 💧 None 💨 4 mph H 55%30.15 inHg

Thursday

1:00 AM

Mostly clear night

71° 💧 None 💨 4 mph H 75%30.12 inHg

7:00 AM

Sunny

64° 💧 None 💨 8 mph H 91%30.15 inHg

1:00 PM

Sunny

59° 💧 None 💨 5 mph H 92%30.21 inHg

7:00 PM

Clear night

71° 💧 None 💨 5 mph H 59%30.21 inHg

Friday

1:00 AM

Clear night

62° 💧 None 💨 4 mph H 80%30.18 inHg

In Long Lake and, more broadly, across the state of Illinois: As the afternoon progresses into the evening, skies will remain mostly cloudy with temperatures holding steady between 66 and 72 degrees Fahrenheit. A light east wind will continue at speeds up to 5 mph, with gusts reaching 6 mph. Rain may occur, with some areas experiencing approximately 0.05 inches of accumulation. While the rain is expected to be light, the potential for showers remains, especially during the evening hours. Overall, it will be a mild and somewhat unsettled end to the day, with partly cloudy conditions possibly giving way to occasional rain showers as night approaches.

15-Day Weather Outlook for Long Lake

TomorrowTomorrow

Mostly sunny 76°/62° 💧 None 💨 7 mph

Saturday, Sep 12Sat Sep 12

Mostly cloudy 82°/65° 💧 None 💨 12 mph

Sunday, Sep 13Sun Sep 13

Mostly sunny 75°/61° 💧 None 💨 7 mph

Monday, Sep 14Mon Sep 14

Moderate rain 70°/59° 💧 1.005 in 💨 10 mph

Tuesday, Sep 15Tue Sep 15

Light rain 78°/69° 💧 0.004 in 💨 14 mph

Wednesday, Sep 16Wed Sep 16

Heavy rain 66°/61° 💧 1.161 in 💨 7 mph

Thursday, Sep 17Thu Sep 17

Moderate rain 69°/63° 💧 0.669 in 💨 9 mph

Friday, Sep 18Fri Sep 18

Mostly cloudy 69°/53° 💧 0.162 in 💨 10 mph

Saturday, Sep 19Sat Sep 19

Mostly sunny 70°/54° 💧 None 💨 4 mph

Sunday, Sep 20Sun Sep 20

Mostly cloudy 71°/56° 💧 0.001 in 💨 4 mph

Monday, Sep 21Mon Sep 21

Mostly sunny 71°/58° 💧 0.002 in 💨 7 mph

Tuesday, Sep 22Tue Sep 22

Sunny 72°/56° 💧 0.001 in 💨 8 mph

Wednesday, Sep 23Wed Sep 23

Partly cloudy 73°/56° 💧 None 💨 6 mph

Thursday, Sep 24Thu Sep 24

Mostly sunny 76°/59° 💧 None 💨 8 mph

Friday, Sep 25Fri Sep 25

Sunny 71°/62° 💧 None 💨 5 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Long Lake

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Long Lake

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 3:00 PM

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

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

O₃ Ozone Fair 73,1µg/m³

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

NO₂ Nitrogen dioxide Good 3,2µg/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 Long Lake

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 5,8Moderate 🙂Fair

Tomorrow UV 6,5High 😐Moderate

Saturday UV 6,3High 🙂Fair

Sunday UV 5,5Moderate 🙂Fair

Monday UV 7,0High 😊Good

Tuesday UV 6,0High —Unavailable

Wednesday UV 4,0Moderate —Unavailable

Hourly UV index today

3:00 PMUV 4,1 4:00 PMUV 2,5 5:00 PMUV 1,2 6:00 PMUV 0,4 7:00 PMUV 0,0

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

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

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 Long Lake

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · LONG LAKE, ILLINOIS

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 5:00 AM–6:00 AM.

96/100Best-hour score

BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 8:48 PM–4:51 AM

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

☾ Moonlight 0% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 86° 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 min80%

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 Long Lake were last refreshed today at 2:20 PM. The current forecast period extends through 12/09/2026 at 12:00 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.