Water Temperature of Lake Michigan Near Winthrop Harbor, IL

Current Water Temperature

47.8°F

Measurement Time: Friday, November 1, 2024, 10:30 AM CDT

Temperature Locations

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Local Points of Interest

Pleasant Prairie, WI

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Lake Michigan

Station Name: Winthrop Harbor Buoy, IL
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 574 feet / 175 meters

Nearest Address:
Offshore
Winthrop Harbor, IL 60096
Lake County

GPS Coordinates: 42.491, -87.779

Nearby Water Temperatures

Lake Michigan, Waukegan, IL (8.5 mi)
Lake Michigan, Racine, WI (16.1 mi)
Fox River, Burlington, WI (24.2 mi)
Lake Michigan, Wilmette, IL (25.4 mi)
Fox River, McHenry, IL (26.8 mi)
Root River, Franklin, WI (27.4 mi)
Lake Michigan, Milwaukee, WI (37.3 mi)
Honey Creek, Wauwatosa, WI (39.9 mi)
Lake Michigan, Lake Michigan, MI (40.3 mi)
Eagle Spring Lake, Mukwonago, WI (41.7 mi)
Lake Michigan, Chicago, IL (42.8 mi)
Chicago River, Chicago, IL (45.4 mi)
Cal-Sag Channel, Blue Island, IL (58.2 mi)
Grand Calumet River, Chicago, IL (59.2 mi)
Indiana Harbor Canal, East Chicago, IN (60.3 mi)

Weather Near Winthrop Harbor, Illinois

Current Weather

64°F
Partly cloudy
Conditions: Partly cloudy
Humidity: 75%
Feels Like: 64°F
Wind: ENE 4 mph
Wind Gusts: 7.2 mph
Pressure: 30.03 in
Precipitation: 0 in
Cloud Cover: 75%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Heavy rain
Wed
H: 64°F
L: 52°F
Cloudy
Thu
H: 73°F
L: 45°F
Cloudy
Fri
H: 73°F
L: 53°F
Partly Cloudy
Sat
H: 76°F
L: 53°F
Moderate rain
Sun
H: 70°F
L: 53°F

Air Quality

AQI: 3 - Unhealthy for Sensitive Groups
PM2.5: 45.14 μg/m3
PM10: 47.55 μg/m3
Carbon Monoxide: 532.8 μg/m3
Nitrogen Dioxide: 26.09 μg/m3
Sulphur Dioxide: 2.04 μg/m3
Ozone: 83 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:49 AM
Sunset: 8:25 PM
Daylight: 15 hrs 10 mins
Moonrise: 2:14 PM
Moon Transit: 8:15 PM
Moonset: 1:50 AM
Moon Phase: First Quarter
Moon Illumination: 59.8%

Best Times for Fishing or Hunting

Major Periods

7:44 AM - 10:14 AM
7:45 PM - 10:15 PM

Minor Periods

1:44 PM - 3:14 PM
1:20 AM - 2:50 AM

Action Rating: 2 out of 5

Air Quality Alert issued June 4 at 12:54PM CDT by NWS Chicago IL

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Wed June 4, 2025, 12:54 PM
Expires: Fri June 6, 2025, 12:00 AM

The Illinois Environmental Protection Agency has declared an Air Pollution Action Day for the greater Chicago Metropolitan Area, which is IN EFFECT UNTIL MIDNIGHT CDT THURSDAY NIGHT. A Chicago area "Air Pollution Action Day" is declared when weather conditions are such that widespread ozone and or particulate levels are expected to be at or above the Unhealthy for Sensitive Groups (USG) category of the Air Quality Index for multiple days. Wildfire smoke is expected to continue to have an impact on particulate levels with the daily 24-hour AQI forecast expected to remain in the USG category today and tomorrow. Active children and adults, especially people with pulmonary or respiratory disease such as asthma, should limit prolonged outdoor activity. Area residents are urged to reduce pollution levels. Air quality forecasts, current air quality, and tips on how you can reduce your emissions can be found at www.airnow.gov. Media contact...Illinois EPA.


Air Quality Alert issued June 4 at 12:54PM CDT by NWS Chicago IL

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Wed June 4, 2025, 12:54 PM
Expires: Fri June 6, 2025, 12:00 AM

The Illinois Environmental Protection Agency has declared an Air Pollution Action Day for the greater Chicago Metropolitan Area, which is IN EFFECT UNTIL MIDNIGHT CDT THURSDAY NIGHT. A Chicago area "Air Pollution Action Day" is declared when weather conditions are such that widespread ozone and or particulate levels are expected to be at or above the Unhealthy for Sensitive Groups (USG) category of the Air Quality Index for multiple days. Wildfire smoke is expected to continue to have an impact on particulate levels with the daily 24-hour AQI forecast expected to remain in the USG category today and tomorrow. Active children and adults, especially people with pulmonary or respiratory disease such as asthma, should limit prolonged outdoor activity. Area residents are urged to reduce pollution levels. Air quality forecasts, current air quality, and tips on how you can reduce your emissions can be found at www.airnow.gov. Media contact...Illinois EPA.


Air Quality Alert issued June 4 at 12:43PM CDT by NWS Milwaukee/Sullivan WI

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Wed June 4, 2025, 12:43 PM
Expires: Thu June 5, 2025, 12:00 PM

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for all of east central, south central, and southeast Wisconsin. WHAT...The PM2.5 AQI is expected to reach the Unhealthy level. WHERE...Southern and eastern Wisconsin. WHEN...From noon Wednesday through noon Thursday. Precautionary/Preparedness Actions: Sensitive groups: Consider rescheduling or moving all activities inside. Go inside if you have symptoms. People with asthma: Follow your asthma action plan and keep quick-relief medicine handy. People with heart disease: Symptoms such as palpitations, shortness of breath, or unusual fatigue may indicate a serious problem. If you have any of these, contact your health care provider. Everyone else: Keep outdoor activities shorter and less intense. Go inside if you have symptoms. Additional Details: Improving air quality is expected to move into Wisconsin from the northwest on Wednesday. However, smoke will continue to impact surface air quality across southern and eastern Wisconsin. Unhealthy AQI is most likely in eastern areas near the Green Bay and Lake Michigan water bodies. Unhealthy for Sensitive Groups AQI is more likely for western portions of the advisory area. For more information on current air quality, please see: https://airquality.wi.gov


Air Quality Alert issued June 4 at 12:43PM CDT by NWS Milwaukee/Sullivan WI

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Wed June 4, 2025, 12:43 PM
Expires: Thu June 5, 2025, 12:00 PM

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for all of east central, south central, and southeast Wisconsin. WHAT...The PM2.5 AQI is expected to reach the Unhealthy level. WHERE...Southern and eastern Wisconsin. WHEN...From noon Wednesday through noon Thursday. Precautionary/Preparedness Actions: Sensitive groups: Consider rescheduling or moving all activities inside. Go inside if you have symptoms. People with asthma: Follow your asthma action plan and keep quick-relief medicine handy. People with heart disease: Symptoms such as palpitations, shortness of breath, or unusual fatigue may indicate a serious problem. If you have any of these, contact your health care provider. Everyone else: Keep outdoor activities shorter and less intense. Go inside if you have symptoms. Additional Details: Improving air quality is expected to move into Wisconsin from the northwest on Wednesday. However, smoke will continue to impact surface air quality across southern and eastern Wisconsin. Unhealthy AQI is most likely in eastern areas near the Green Bay and Lake Michigan water bodies. Unhealthy for Sensitive Groups AQI is more likely for western portions of the advisory area. For more information on current air quality, please see: https://airquality.wi.gov


Air Quality Alert issued June 4 at 10:57AM CDT by NWS Milwaukee/Sullivan WI

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Wed June 4, 2025, 10:57 AM
Expires: Wed June 4, 2025, 7:00 PM

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for all of east central, south central, and southeast Wisconsin. WHAT...The PM2.5 AQI is expected to reach the Unhealthy level. WHERE...Southern and eastern Wisconsin. WHEN...From noon Wednesday through noon Thursday. Precautionary/Preparedness Actions: Sensitive groups: Consider rescheduling or moving all activities inside. Go inside if you have symptoms. People with asthma: Follow your asthma action plan and keep quick-relief medicine handy. People with heart disease: Symptoms such as palpitations, shortness of breath, or unusual fatigue may indicate a serious problem. If you have any of these, contact your health care provider. Everyone else: Keep outdoor activities shorter and less intense. Go inside if you have symptoms. Additional Details: Improving air quality is expected to move into Wisconsin from the northwest on Wednesday. However, smoke will continue to impact surface air quality across southern and eastern Wisconsin. Unhealthy AQI is most likely in eastern areas near the Green Bay and Lake Michigan water bodies. Unhealthy for Sensitive Groups AQI is more likely for western portions of the advisory area. For more information on current air quality, please see: https://airquality.wi.gov


Wednesday, June 4, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 61.2°F
Average Humidity: 93%
Chance of Rain: 87%
Wind: 9.4 mph
UV Index: 0.4

Air Quality

AQI: 2 - Moderate
PM2.5: 33.45 μg/m3
PM10: 34.26 μg/m3
Carbon Monoxide: 407.15 μg/m3
Nitrogen Dioxide: 13.43 μg/m3
Sulphur Dioxide: 2.34 μg/m3
Ozone: 107.6 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:49 AM
Sunset: 8:25 PM
Daylight: 15 hrs 10 mins
Moonrise: 2:14 PM
Moon Transit: 8:15 PM
Moonset: 1:50 AM
Moon Phase: First Quarter
Moon Illumination: 59.8%

Best Times for Fishing or Hunting

Major Periods

7:44 AM - 10:14 AM
7:45 PM - 10:15 PM

Minor Periods

1:44 PM - 3:14 PM
1:20 AM - 2:50 AM

Action Rating: 2 out of 5

Thursday, June 5, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 59.7°F
Average Humidity: 83%
Chance of Rain: 0%
Wind: 11 mph
UV Index: 2

Air Quality

AQI: 2 - Moderate
PM2.5: 38.93 μg/m3
PM10: 40.49 μg/m3
Carbon Monoxide: 472.64 μg/m3
Nitrogen Dioxide: 18.89 μg/m3
Sulphur Dioxide: 1.56 μg/m3
Ozone: 95 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:49 AM
Sunset: 8:25 PM
Daylight: 15 hrs 11 mins
Moonrise: 3:15 PM
Moon Transit: 8:55 PM
Moonset: 2:07 AM
Moon Phase: First Quarter
Moon Illumination: 70.6%

Best Times for Fishing or Hunting

Major Periods

8:23 AM - 10:53 AM
8:25 PM - 10:55 PM

Minor Periods

2:45 PM - 4:15 PM
1:37 AM - 3:07 AM

Action Rating: 3 out of 5

Friday, June 6, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 62.3°F
Average Humidity: 69%
Chance of Rain: 0%
Wind: 7.8 mph
UV Index: 1.9

Air Quality

AQI: 2 - Moderate
PM2.5: 31.65 μg/m3
PM10: 32.29 μg/m3
Carbon Monoxide: 412.11 μg/m3
Nitrogen Dioxide: 19.83 μg/m3
Sulphur Dioxide: 1.68 μg/m3
Ozone: 88 μg/m3

Astronomical

Sunrise: 5:14 AM
Sun Transit: 12:49 AM
Sunset: 8:26 PM
Daylight: 15 hrs 12 mins
Moonrise: 4:17 PM
Moon Transit: 9:35 PM
Moonset: 2:26 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

9:03 AM - 11:33 AM
9:05 PM - 11:35 PM

Minor Periods

3:47 PM - 5:17 PM
1:56 AM - 3:26 AM

Action Rating: 2 out of 5

Saturday, June 7, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 63.4°F
Average Humidity: 67%
Chance of Rain: 0%
Wind: 7.4 mph
UV Index: 1.1

Air Quality

AQI: 2 - Moderate
PM2.5: 25.4 μg/m3
PM10: 26.24 μg/m3
Carbon Monoxide: 342.25 μg/m3
Nitrogen Dioxide: 19 μg/m3
Sulphur Dioxide: 1.93 μg/m3
Ozone: 93.64 μg/m3

Astronomical

Sunrise: 5:14 AM
Sun Transit: 12:50 AM
Sunset: 8:27 PM
Daylight: 15 hrs 13 mins
Moonrise: 5:20 PM
Moon Transit: 10:18 PM
Moonset: 2:46 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

9:45 AM - 12:15 AM
12:00 AM - 12:00 AM

Minor Periods

4:50 PM - 6:20 PM
2:16 AM - 3:46 AM

Action Rating: 2 out of 5

Sunday, June 8, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 61.2°F
Average Humidity: 77%
Chance of Rain: 78%
Wind: 17.2 mph
UV Index: 1.4

Air Quality

AQI: 3 - Unhealthy for Sensitive Groups
PM2.5: 41.82 μg/m3
PM10: 42.56 μg/m3
Carbon Monoxide: 534.93 μg/m3
Nitrogen Dioxide: 42 μg/m3
Sulphur Dioxide: 6.09 μg/m3
Ozone: 69.31 μg/m3

Astronomical

Sunrise: 5:14 AM
Sun Transit: 12:50 AM
Sunset: 8:27 PM
Daylight: 15 hrs 14 mins
Moonrise: 6:25 PM
Moon Transit: 11:04 PM
Moonset: 3:08 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

10:30 AM - 1:00 PM
12:00 AM - 12:00 AM

Minor Periods

5:55 PM - 7:25 PM
2:38 AM - 4:08 AM

Action Rating: 2 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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