Water Temperature of Lake Mendota in Madison, WI

Current Water Temperature

54.3°F

Measurement Time: Friday, May 15, 2026, 10:15 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

73.9°F
Sunny
Sunny
76.7°F
80.9°F
46%
SSW 13 mph
14.9 mph
79.8°F
59.1°F
0 in
0%
9 mi
1009 mbar
4.1

Five Day Weather Forecast

Patchy rain nearby
Fri
H: 82°F
L: 55°F
Moderate rain
Sat
H: 77°F
L: 56°F
Patchy rain nearby
Sun
H: 77°F
L: 53°F
Patchy rain nearby
Mon
H: 77°F
L: 66°F
Moderate rain
Tue
H: 73°F
L: 52°F

Air Quality

AQI: 1 - Good
PM2.5: 6.45 μg/m3
PM10: 6.55 μg/m3
Carbon Monoxide: 169.85 μg/m3
Nitrogen Dioxide: 4.05 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 103 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 12:54 AM
Sunset: 8:15 PM
Daylight: 14 hrs 41 mins
Moonrise: 4:22 AM
Moon Transit: 11:43 AM
Moonset: 7:21 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:13 AM - 1:43 PM

Minor Periods

6:51 PM - 8:21 PM
3:52 AM - 5:22 AM

Action Rating: 5 out of 5

Friday, May 15, 2026

Weather Forecast

Patchy rain nearby
82.2°F
55°F
68.2°F
52%
0.02 in
85%
0%
17.4 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 5.67 μg/m3
PM10: 6.09 μg/m3
Carbon Monoxide: 155.45 μg/m3
Nitrogen Dioxide: 5.3 μg/m3
Sulphur Dioxide: 1.65 μg/m3
Ozone: 84.92 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 12:54 AM
Sunset: 8:15 PM
Daylight: 14 hrs 41 mins
Moonrise: 4:22 AM
Moon Transit: 11:43 AM
Moonset: 7:21 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:13 AM - 1:43 PM

Minor Periods

6:51 PM - 8:21 PM
3:52 AM - 5:22 AM

Action Rating: 5 out of 5

Saturday, May 16, 2026

Weather Forecast

Moderate rain
77.4°F
56.3°F
66.6°F
75%
0.66 in
80%
0%
17.2 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 5.62 μg/m3
PM10: 6.17 μg/m3
Carbon Monoxide: 171.33 μg/m3
Nitrogen Dioxide: 4.88 μg/m3
Sulphur Dioxide: 1.6 μg/m3
Ozone: 90.56 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 12:54 AM
Sunset: 8:16 PM
Daylight: 14 hrs 43 mins
Moonrise: 4:55 AM
Moon Transit: 12:43 AM
Moonset: 8:46 PM
Moon Phase: New
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:13 AM - 2:43 PM

Minor Periods

8:16 PM - 9:46 PM
4:25 AM - 5:55 AM

Action Rating: 5 out of 5

Sunday, May 17, 2026

Weather Forecast

Patchy rain nearby
76.6°F
53.1°F
64.1°F
81%
0.13 in
84%
0%
19.5 mph
4.2


Air Quality

AQI: 1 - Good
PM2.5: 7.27 μg/m3
PM10: 7.85 μg/m3
Carbon Monoxide: 188.21 μg/m3
Nitrogen Dioxide: 11.61 μg/m3
Sulphur Dioxide: 1.8 μg/m3
Ozone: 68.48 μg/m3

Astronomical

Sunrise: 5:32 AM
Sun Transit: 12:54 AM
Sunset: 8:17 PM
Daylight: 14 hrs 45 mins
Moonrise: 5:38 AM
Moon Transit: 1:47 PM
Moonset: 10:06 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:49 AM - 3:19 AM
1:17 PM - 3:47 PM

Minor Periods

9:36 PM - 11:06 PM
5:08 AM - 6:38 AM

Action Rating: 4 out of 5

Monday, May 18, 2026

Weather Forecast

Patchy rain nearby
76.5°F
66.1°F
70.2°F
83%
0.08 in
88%
0%
19.5 mph
6.1


Air Quality

AQI: 1 - Good
PM2.5: 5.5 μg/m3
PM10: 6.32 μg/m3
Carbon Monoxide: 152.69 μg/m3
Nitrogen Dioxide: 4.05 μg/m3
Sulphur Dioxide: 1.77 μg/m3
Ozone: 82.28 μg/m3

Astronomical

Sunrise: 5:31 AM
Sun Transit: 12:54 AM
Sunset: 8:18 PM
Daylight: 14 hrs 47 mins
Moonrise: 6:34 AM
Moon Transit: 2:54 PM
Moonset: 11:15 PM
Moon Phase: New
Moon Illumination: 2.6%

Best Times for Fishing or Hunting

Major Periods

1:55 AM - 4:25 AM
2:24 PM - 4:54 PM

Minor Periods

12:00 AM - 12:00 AM
6:04 AM - 7:34 AM

Action Rating: 3 out of 5

Tuesday, May 19, 2026

Weather Forecast

Moderate rain
72.5°F
51.5°F
62.5°F
84%
0.37 in
82%
0%
20.4 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 4.81 μg/m3
PM10: 5 μg/m3
Carbon Monoxide: 177.44 μg/m3
Nitrogen Dioxide: 5.18 μg/m3
Sulphur Dioxide: 1.99 μg/m3
Ozone: 64.23 μg/m3

Astronomical

Sunrise: 5:30 AM
Sun Transit: 12:54 AM
Sunset: 8:19 PM
Daylight: 14 hrs 49 mins
Moonrise: 7:43 AM
Moon Transit: 4:00 PM
Moonset: 12:15 AM
Moon Phase: Waxing Crescent
Moon Illumination: 7.4%

Best Times for Fishing or Hunting

Major Periods

3:03 AM - 5:33 AM
3:30 PM - 6:00 PM

Minor Periods

7:13 AM - 8:43 AM
12:00 AM - 12:00 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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