Water Temperature of Lake Mendota in Madison, WI

Current Water Temperature

66.0°F

Measurement Time: Monday, June 1, 2026, 7:15 AM CDT

Temperature Locations

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Local Points of Interest

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

Lake Mendota

Station Name: Madison 2NW
Data Source: USGS

Elevation Above Sea Level: 847 feet

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 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

88.7°F
Partly cloudy
Partly cloudy
93.9°F
102.4°F
41%
SW 13.9 mph
16.7 mph
92.8°F
72.7°F
0 in
50%
9 mi
1008 mbar
2.5

Five Day Weather Forecast

Sunny
Mon
H: 93°F
L: 65°F
Sunny
Tue
H: 77°F
L: 58°F
Sunny
Wed
H: 72°F
L: 48°F
Sunny
Thu
H: 77°F
L: 54°F
Sunny
Fri
H: 76°F
L: 58°F

Air Quality

AQI: 1 - Good
PM2.5: 9.1 μg/m3
PM10: 9.5 μg/m3
Carbon Monoxide: 200 μg/m3
Nitrogen Dioxide: 1.2 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 125 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:04 PM
Sunset: 8:31 PM
Daylight: 14 hrs 55 mins
Moonrise: 12:55 AM
Moon Transit: 6:19 PM
Moonset: 12:15 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

5:33 AM - 8:03 AM
5:49 PM - 8:19 PM

Minor Periods

12:25 AM - 1:55 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Air Quality Alert issued July 20 at 12:14PM CDT by NWS Milwaukee/Sullivan WI

Effective: Mon July 20, 2026, 12:14 PM
Expires: Mon July 20, 2026, 8:15 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, Jefferson, Kenosha, Marquette, Milwaukee, Ozaukee, Racine, Rock, Sheboygan, Walworth, Washington, Waukesha. WHAT...The PM2.5 AQI is expected to reach the Unhealthy for Sensitive Groups level. WHERE...Southeast and northeast Wisconsin, including portions of south-central and central Wisconsin. WHEN...Until 6 p.m. Precautionary/Preparedness Actions: Sensitive groups: Make outdoor activities shorter and less intense. It is OK to be active outdoors but take more breaks. Watch for symptoms such as coughing or shortness of breath. 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. Additional Details: Smoke is clearing from NW to SE but it will take longer to clear across the eastern half of the state. Continual clearing of the smoke as well as storm activity should diminish advisory level smoke by 6 p.m. For more information on current air quality, please see: https://airquality.wi.gov


Air Quality Alert issued July 20 at 11:46AM CDT by NWS Milwaukee/Sullivan WI

Effective: Mon July 20, 2026, 11:46 AM
Expires: Mon July 20, 2026, 8:00 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, Jefferson, Kenosha, Marquette, Milwaukee, Ozaukee, Racine, Rock, Sheboygan, Walworth, Washington, Waukesha. WHAT...The PM2.5 AQI is expected to reach the Unhealthy for Sensitive Groups level. WHERE...Southeast and northeast Wisconsin, including portions of south-central and central Wisconsin. WHEN...Until 6 p.m. Precautionary/Preparedness Actions: Sensitive groups: Make outdoor activities shorter and less intense. It is OK to be active outdoors but take more breaks. Watch for symptoms such as coughing or shortness of breath. 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. Additional Details: Smoke is clearing from NW to SE but it will take longer to clear across the eastern half of the state. Continual clearing of the smoke as well as storm activity should diminish advisory level smoke by 6 p.m. For more information on current air quality, please see: https://airquality.wi.gov


Monday, July 20, 2026

Weather Forecast

Sunny
93.4°F
64.9°F
76°F
70%
0.56 in
66%
0%
14.8 mph
6.7


Air Quality

AQI: 1 - Good
PM2.5: 13.75 μg/m3
PM10: 14.06 μg/m3
Carbon Monoxide: 219.08 μg/m3
Nitrogen Dioxide: 5.62 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 94.08 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:04 PM
Sunset: 8:31 PM
Daylight: 14 hrs 55 mins
Moonrise: 12:55 AM
Moon Transit: 6:19 PM
Moonset: 12:15 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

5:33 AM - 8:03 AM
5:49 PM - 8:19 PM

Minor Periods

12:25 AM - 1:55 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Tuesday, July 21, 2026

Weather Forecast

Sunny
77.2°F
58.2°F
70.4°F
75%
0.01 in
36%
0%
19.2 mph
6.1


Air Quality

AQI: 1 - Good
PM2.5: 2.53 μg/m3
PM10: 2.61 μg/m3
Carbon Monoxide: 145.42 μg/m3
Nitrogen Dioxide: 2.19 μg/m3
Sulphur Dioxide: 0.47 μg/m3
Ozone: 82.79 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:04 PM
Sunset: 8:31 PM
Daylight: 14 hrs 53 mins
Moonrise: 2:01 PM
Moon Transit: 7:04 PM
Moonset: 12:35 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

6:16 AM - 8:46 AM
6:34 PM - 9:04 PM

Minor Periods

1:31 PM - 3:01 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, July 22, 2026

Weather Forecast

Sunny
72.1°F
47.9°F
60.4°F
71%
0 in
7%
0%
12.5 mph
9.1


Air Quality

AQI: 1 - Good
PM2.5: 6.7 μg/m3
PM10: 6.98 μg/m3
Carbon Monoxide: 129.38 μg/m3
Nitrogen Dioxide: 2.56 μg/m3
Sulphur Dioxide: 0.43 μg/m3
Ozone: 76.38 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:04 PM
Sunset: 8:30 PM
Daylight: 14 hrs 52 mins
Moonrise: 3:07 PM
Moon Transit: 7:49 PM
Moonset: 12:58 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

7:01 AM - 9:31 AM
7:19 PM - 9:49 PM

Minor Periods

2:37 PM - 4:07 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, July 23, 2026

Weather Forecast

Sunny
77.1°F
54.2°F
65.6°F
75%
0 in
17%
0%
7.4 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 7.12 μg/m3
PM10: 7.43 μg/m3
Carbon Monoxide: 154.92 μg/m3
Nitrogen Dioxide: 8.97 μg/m3
Sulphur Dioxide: 0.57 μg/m3
Ozone: 73.75 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:04 PM
Sunset: 8:29 PM
Daylight: 14 hrs 50 mins
Moonrise: 4:12 PM
Moon Transit: 8:37 PM
Moonset: 12:26 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

7:48 AM - 10:18 AM
8:07 PM - 10:37 PM

Minor Periods

3:42 PM - 5:12 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Friday, July 24, 2026

Weather Forecast

Sunny
76°F
58.2°F
66.5°F
77%
0.03 in
40%
0%
10.1 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 7.65 μg/m3
PM10: 7.91 μg/m3
Carbon Monoxide: 206.88 μg/m3
Nitrogen Dioxide: 13.66 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 52 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:04 PM
Sunset: 8:28 PM
Daylight: 14 hrs 48 mins
Moonrise: 5:14 PM
Moon Transit: 9:27 PM
Moonset: 12:58 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

8:37 AM - 11:07 AM
8:57 PM - 11:27 PM

Minor Periods

4:44 PM - 6:14 PM
12:28 AM - 1:58 AM

Action Rating: 3 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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