Water Temperature of Lake Mendota in Madison, WI

Current Water Temperature

77.2°F

Measurement Time: Tuesday, August 8, 2023, 10:15 AM CDT

Temperature Locations

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Local Points of Interest

Maple Bluff, WI; Shorewood Hills, WI; Middleton, WI; Waunakee, WI

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Lake Mendota

Station Name: Madison 2NW
Data Source: USGS

Elevation Above Sea Level: 846 feet / 258 meters

Nearest Address:
Howard Temin Lakeshore Path
Madison, WI 53706
Dane County

GPS Coordinates: 43.0994, -89.4044

Nearby Water Temperatures

Lake Monona, Madison, WI (2.5 mi)
Pheasant Branch, Middleton, WI (5.4 mi)
Swan Creek, Fitchburg, WI (7.2 mi)
Yahara River, Windsor, WI (8.0 mi)
Badger Mill Creek, Verona, WI (10.9 mi)
Brewery Creek, Cross Plains, WI (11.8 mi)
Black Earth Creek, Cross Plains, WI (11.9 mi)
Sugar River, Verona, WI (12.6 mi)
Black Earth Creek, Cross Plains, WI (13.1 mi)
Black Earth Creek, Black Earth, WI (16.7 mi)
Eagle Spring Lake, Mukwonago, WI (51.8 mi)
Wisconsin River, Muscoda, WI (52.8 mi)
Fox River, Berlin, WI (63.2 mi)
Fond Du Lac River, Fond Du Lac, WI (67.7 mi)
Rock River, Byron, IL (67.9 mi)

Weather for Madison, Wisconsin

Current Weather

61°F
Overcast
Conditions: Overcast
Humidity: 75%
Feels Like: 61°F
Wind: NNE 6.7 mph
Wind Gusts: 14.1 mph
Pressure: 30.31 in
Precipitation: 0 in
Cloud Cover: 75%
Visibility: 4 mi
UV Index: 0

Five Day Weather Forecast

Patchy rain nearby
Thu
H: 78°F
L: 56°F
Sunny
Fri
H: 77°F
L: 50°F
Cloudy
Sat
H: 76°F
L: 51°F
Partly Cloudy
Sun
H: 78°F
L: 59°F
Sunny
Mon
H: 79°F
L: 56°F

Air Quality

AQI: 2 - Moderate
PM2.5: 7.59 μg/m3
PM10: 7.59 μg/m3
Carbon Monoxide: 419.95 μg/m3
Nitrogen Dioxide: 13.51 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 49 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:04 PM
Sunset: 8:20 PM
Daylight: 14 hrs 33 mins
Moonrise: 1:05 PM
Moon Transit: 6:15 PM
Moonset: 11:18 PM
Moon Phase: First Quarter
Moon Illumination: 36.7%

Best Times for Fishing or Hunting

Major Periods

5:30 AM - 8:00 AM
5:45 PM - 8:15 PM

Minor Periods

12:00 AM - 12:00 AM
12:35 AM - 2:05 PM

Action Rating: 4 out of 5

Air Quality Alert issued July 31 at 10:44AM CDT by NWS Milwaukee/Sullivan WI

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Thu July 31, 2025, 10:44 AM
Expires: Fri August 1, 2025, 12:00 PM

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for the following counties: Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake, Iowa, Jefferson, Kenosha, Lafayette, Marquette, Milwaukee, Ozaukee, Racine, Rock, Sauk, Sheboygan, Walworth, Washington, Waukesha. WHAT...The PM2.5 AQI is expected to reach the Unhealthy level. WHERE...All of Wisconsin WHEN...Until noon Friday, August 1 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: Canadian wildfire smoke will continue to impact Wisconsin`s surface air quality over the next several days. Widespread Unhealthy (Red) AQI for PM2.5 is expected across Wisconsin on Thursday, with NowCast AQI values in the Very Unhealthy (Purple) category possible. Conditions are expected to slowly improve beginning Friday. However, Unhealthy for Sensitive Groups (Orange) to Unhealthy (Red) AQI will remain possible through the weekend. Conditions will be reevaluated on a day-to- day basis through the weekend, including updates to the forecast and any associated Air Quality Advisories. For more information on current air quality, please see: https://airquality.wi.gov


Air Quality Alert issued July 31 at 10:44AM CDT by NWS Milwaukee/Sullivan WI

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Thu July 31, 2025, 10:44 AM
Expires: Fri August 1, 2025, 12:00 PM

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for the following counties: Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake, Iowa, Jefferson, Kenosha, Lafayette, Marquette, Milwaukee, Ozaukee, Racine, Rock, Sauk, Sheboygan, Walworth, Washington, Waukesha. WHAT...The PM2.5 AQI is expected to reach the Unhealthy level. WHERE...All of Wisconsin WHEN...Until noon Friday, August 1 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: Canadian wildfire smoke will continue to impact Wisconsin`s surface air quality over the next several days. Widespread Unhealthy (Red) AQI for PM2.5 is expected across Wisconsin on Thursday, with NowCast AQI values in the Very Unhealthy (Purple) category possible. Conditions are expected to slowly improve beginning Friday. However, Unhealthy for Sensitive Groups (Orange) to Unhealthy (Red) AQI will remain possible through the weekend. Conditions will be reevaluated on a day-to- day basis through the weekend, including updates to the forecast and any associated Air Quality Advisories. For more information on current air quality, please see: https://airquality.wi.gov


Air Quality Alert issued July 31 at 10:44AM CDT by NWS Milwaukee/Sullivan WI

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Thu July 31, 2025, 10:44 AM
Expires: Fri August 1, 2025, 12:00 PM

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for the following counties: Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake, Iowa, Jefferson, Kenosha, Lafayette, Marquette, Milwaukee, Ozaukee, Racine, Rock, Sauk, Sheboygan, Walworth, Washington, Waukesha. WHAT...The PM2.5 AQI is expected to reach the Unhealthy level. WHERE...All of Wisconsin WHEN...Until noon Friday, August 1 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: Canadian wildfire smoke will continue to impact Wisconsin`s surface air quality over the next several days. Widespread Unhealthy (Red) AQI for PM2.5 is expected across Wisconsin on Thursday, with NowCast AQI values in the Very Unhealthy (Purple) category possible. Conditions are expected to slowly improve beginning Friday. However, Unhealthy for Sensitive Groups (Orange) to Unhealthy (Red) AQI will remain possible through the weekend. Conditions will be reevaluated on a day-to- day basis through the weekend, including updates to the forecast and any associated Air Quality Advisories. For more information on current air quality, please see: https://airquality.wi.gov


Air Quality Alert issued July 31 at 10:44AM CDT by NWS Milwaukee/Sullivan WI

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Thu July 31, 2025, 10:44 AM
Expires: Fri August 1, 2025, 12:00 PM

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for the following counties: Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake, Iowa, Jefferson, Kenosha, Lafayette, Marquette, Milwaukee, Ozaukee, Racine, Rock, Sauk, Sheboygan, Walworth, Washington, Waukesha. WHAT...The PM2.5 AQI is expected to reach the Unhealthy level. WHERE...All of Wisconsin WHEN...Until noon Friday, August 1 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: Canadian wildfire smoke will continue to impact Wisconsin`s surface air quality over the next several days. Widespread Unhealthy (Red) AQI for PM2.5 is expected across Wisconsin on Thursday, with NowCast AQI values in the Very Unhealthy (Purple) category possible. Conditions are expected to slowly improve beginning Friday. However, Unhealthy for Sensitive Groups (Orange) to Unhealthy (Red) AQI will remain possible through the weekend. Conditions will be reevaluated on a day-to- day basis through the weekend, including updates to the forecast and any associated Air Quality Advisories. For more information on current air quality, please see: https://airquality.wi.gov


Air Quality Alert issued July 31 at 10:44AM CDT by NWS Milwaukee/Sullivan WI

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Thu July 31, 2025, 10:44 AM
Expires: Fri August 1, 2025, 12:00 PM

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for the following counties: Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake, Iowa, Jefferson, Kenosha, Lafayette, Marquette, Milwaukee, Ozaukee, Racine, Rock, Sauk, Sheboygan, Walworth, Washington, Waukesha. WHAT...The PM2.5 AQI is expected to reach the Unhealthy level. WHERE...All of Wisconsin WHEN...Until noon Friday, August 1 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: Canadian wildfire smoke will continue to impact Wisconsin`s surface air quality over the next several days. Widespread Unhealthy (Red) AQI for PM2.5 is expected across Wisconsin on Thursday, with NowCast AQI values in the Very Unhealthy (Purple) category possible. Conditions are expected to slowly improve beginning Friday. However, Unhealthy for Sensitive Groups (Orange) to Unhealthy (Red) AQI will remain possible through the weekend. Conditions will be reevaluated on a day-to- day basis through the weekend, including updates to the forecast and any associated Air Quality Advisories. For more information on current air quality, please see: https://airquality.wi.gov


Thursday, July 31, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 66°F
Average Humidity: 75%
Chance of Rain: 77%
Wind: 13.9 mph
UV Index: 2.1

Air Quality

AQI: 3 - Unhealthy for Sensitive Groups
PM2.5: 46.91 μg/m3
PM10: 47.26 μg/m3
Carbon Monoxide: 553.22 μg/m3
Nitrogen Dioxide: 7.41 μg/m3
Sulphur Dioxide: 1.26 μg/m3
Ozone: 84.6 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:04 PM
Sunset: 8:20 PM
Daylight: 14 hrs 33 mins
Moonrise: 1:05 PM
Moon Transit: 6:15 PM
Moonset: 11:18 PM
Moon Phase: First Quarter
Moon Illumination: 36.7%

Best Times for Fishing or Hunting

Major Periods

5:30 AM - 8:00 AM
5:45 PM - 8:15 PM

Minor Periods

12:00 AM - 12:00 AM
12:35 AM - 2:05 PM

Action Rating: 4 out of 5

Friday, August 1, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 64.3°F
Average Humidity: 69%
Chance of Rain: 0%
Wind: 8.3 mph
UV Index: 2

Air Quality

AQI: 1 - Good
PM2.5: 13.28 μg/m3
PM10: 13.39 μg/m3
Carbon Monoxide: 412.99 μg/m3
Nitrogen Dioxide: 9.43 μg/m3
Sulphur Dioxide: 0.84 μg/m3
Ozone: 69.44 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:03 PM
Sunset: 8:19 PM
Daylight: 14 hrs 30 mins
Moonrise: 2:09 PM
Moon Transit: 7:00 PM
Moonset: 12:18 AM
Moon Phase: First Quarter
Moon Illumination: 47.9%

Best Times for Fishing or Hunting

Major Periods

6:12 AM - 8:42 AM
6:30 PM - 9:00 PM

Minor Periods

1:39 PM - 3:09 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Saturday, August 2, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 65.1°F
Average Humidity: 75%
Chance of Rain: 0%
Wind: 4 mph
UV Index: 2

Air Quality

AQI: 1 - Good
PM2.5: 14.87 μg/m3
PM10: 15.06 μg/m3
Carbon Monoxide: 469.6 μg/m3
Nitrogen Dioxide: 28.68 μg/m3
Sulphur Dioxide: 1.86 μg/m3
Ozone: 73.16 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:03 PM
Sunset: 8:18 PM
Daylight: 14 hrs 28 mins
Moonrise: 3:14 PM
Moon Transit: 7:45 PM
Moonset: 12:41 AM
Moon Phase: First Quarter
Moon Illumination: 59.1%

Best Times for Fishing or Hunting

Major Periods

6:57 AM - 9:27 AM
7:15 PM - 9:45 PM

Minor Periods

2:44 PM - 4:14 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, August 3, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 67.6°F
Average Humidity: 74%
Chance of Rain: 0%
Wind: 7.8 mph
UV Index: 2.1

Air Quality

AQI: 2 - Moderate
PM2.5: 20.55 μg/m3
PM10: 20.72 μg/m3
Carbon Monoxide: 442.96 μg/m3
Nitrogen Dioxide: 25.75 μg/m3
Sulphur Dioxide: 3.37 μg/m3
Ozone: 79.32 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:03 PM
Sunset: 8:16 PM
Daylight: 14 hrs 26 mins
Moonrise: 4:19 PM
Moon Transit: 8:35 PM
Moonset: 12:11 AM
Moon Phase: First Quarter
Moon Illumination: 70.0%

Best Times for Fishing or Hunting

Major Periods

7:45 AM - 10:15 AM
8:05 PM - 10:35 PM

Minor Periods

3:49 PM - 5:19 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, August 4, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 67.6°F
Average Humidity: 75%
Chance of Rain: 0%
Wind: 6.7 mph
UV Index: 2

Air Quality

AQI: 2 - Moderate
PM2.5: 32.35 μg/m3
PM10: 32.53 μg/m3
Carbon Monoxide: 549.59 μg/m3
Nitrogen Dioxide: 32.83 μg/m3
Sulphur Dioxide: 3.12 μg/m3
Ozone: 65.77 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:03 PM
Sunset: 8:15 PM
Daylight: 14 hrs 23 mins
Moonrise: 5:20 PM
Moon Transit: 9:27 PM
Moonset: 12:48 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 79.8%

Best Times for Fishing or Hunting

Major Periods

8:36 AM - 11:06 AM
8:57 PM - 11:27 PM

Minor Periods

4:50 PM - 6:20 PM
12:18 AM - 1:48 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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