Water Temperature of Lake Mendota in Madison, WI

Current Water Temperature

54.9°F

Measurement Time: Sunday, May 10, 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

55.9°F
Partly cloudy
Partly cloudy
55°F
54°F
37%
WNW 5.4 mph
10.6 mph
52°F
30.5°F
0 in
75%
9 mi
1019 mbar
0

Five Day Weather Forecast

Sunny
Sun
H: 65°F
L: 37°F
Sunny
Mon
H: 60°F
L: 35°F
Patchy rain nearby
Tue
H: 70°F
L: 41°F
Partly Cloudy
Wed
H: 56°F
L: 42°F
Sunny
Thu
H: 66°F
L: 38°F

Air Quality

AQI: 1 - Good
PM2.5: 3.45 μg/m3
PM10: 3.55 μg/m3
Carbon Monoxide: 146.85 μg/m3
Nitrogen Dioxide: 11.75 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 44 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 12:54 AM
Sunset: 8:09 PM
Daylight: 14 hrs 30 mins
Moonrise: 2:30 AM
Moon Transit: 7:43 AM
Moonset: 1:07 PM
Moon Phase: Last Quarter
Moon Illumination: 26.2%

Best Times for Fishing or Hunting

Major Periods

7:13 AM - 9:43 AM
7:40 PM - 10:10 PM

Minor Periods

12:37 AM - 2:07 PM
2:00 AM - 3:30 AM

Action Rating: 3 out of 5

Frost Advisory issued May 10 at 11:59AM CDT until May 11 at 8:00AM CDT by NWS Milwaukee/Sullivan WI

Effective: Sun May 10, 2026, 11:59 AM
Expires: Sun May 10, 2026, 8:00 PM

* WHAT...Temperatures as low as 30 will result in frost formation. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...From midnight tonight to 8 AM CDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.


Frost Advisory issued May 10 at 6:48PM CDT until May 11 at 8:00AM CDT by NWS Milwaukee/Sullivan WI

Effective: Sun May 10, 2026, 6:48 PM
Expires: Mon May 11, 2026, 3:00 AM

* WHAT...Temperatures as low as 30 will result in frost formation. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...From midnight tonight to 8 AM CDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.
Sunday, May 10, 2026

Weather Forecast

Sunny
64.9°F
37.4°F
52.5°F
44%
0 in
0%
0%
14.3 mph
6.4


Air Quality

AQI: 1 - Good
PM2.5: 3.89 μg/m3
PM10: 4.09 μg/m3
Carbon Monoxide: 153.85 μg/m3
Nitrogen Dioxide: 5.32 μg/m3
Sulphur Dioxide: 1.73 μg/m3
Ozone: 70.56 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 12:54 AM
Sunset: 8:09 PM
Daylight: 14 hrs 30 mins
Moonrise: 2:30 AM
Moon Transit: 7:43 AM
Moonset: 1:07 PM
Moon Phase: Last Quarter
Moon Illumination: 26.2%

Best Times for Fishing or Hunting

Major Periods

7:13 AM - 9:43 AM
7:40 PM - 10:10 PM

Minor Periods

12:37 AM - 2:07 PM
2:00 AM - 3:30 AM

Action Rating: 3 out of 5

Monday, May 11, 2026

Weather Forecast

Sunny
59.9°F
35.1°F
49.1°F
59%
0 in
0%
0%
11.4 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 3.69 μg/m3
PM10: 3.89 μg/m3
Carbon Monoxide: 150.77 μg/m3
Nitrogen Dioxide: 7.24 μg/m3
Sulphur Dioxide: 1.4 μg/m3
Ozone: 66.44 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 12:54 AM
Sunset: 8:10 PM
Daylight: 14 hrs 32 mins
Moonrise: 2:51 AM
Moon Transit: 8:28 AM
Moonset: 2:16 PM
Moon Phase: Last Quarter
Moon Illumination: 16.9%

Best Times for Fishing or Hunting

Major Periods

7:58 AM - 10:28 AM
8:25 PM - 10:55 PM

Minor Periods

1:46 PM - 3:16 PM
2:21 AM - 3:51 AM

Action Rating: 3 out of 5

Tuesday, May 12, 2026

Weather Forecast

Patchy rain nearby
70.4°F
41°F
54°F
70%
0.05 in
86%
0%
23.3 mph
7.2


Air Quality

AQI: 1 - Good
PM2.5: 4.74 μg/m3
PM10: 5.05 μg/m3
Carbon Monoxide: 163.97 μg/m3
Nitrogen Dioxide: 6.53 μg/m3
Sulphur Dioxide: 1.98 μg/m3
Ozone: 75.88 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 12:54 AM
Sunset: 8:12 PM
Daylight: 14 hrs 35 mins
Moonrise: 3:11 AM
Moon Transit: 8:41 PM
Moonset: 3:27 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.3%

Best Times for Fishing or Hunting

Major Periods

8:11 PM - 10:41 PM
8:11 PM - 10:41 PM

Minor Periods

2:57 PM - 4:27 PM
2:41 AM - 4:11 AM

Action Rating: 4 out of 5

Wednesday, May 13, 2026

Weather Forecast

Partly Cloudy
56.2°F
42.4°F
50.6°F
67%
0 in
0%
0%
19.9 mph
5.2


Air Quality

AQI: 1 - Good
PM2.5: 2.51 μg/m3
PM10: 2.6 μg/m3
Carbon Monoxide: 150.67 μg/m3
Nitrogen Dioxide: 3.86 μg/m3
Sulphur Dioxide: 1.52 μg/m3
Ozone: 81.88 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 12:54 AM
Sunset: 8:13 PM
Daylight: 14 hrs 37 mins
Moonrise: 3:32 AM
Moon Transit: 12:00 AM
Moonset: 4:41 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

4:11 PM - 5:41 PM
3:02 AM - 4:32 AM

Action Rating: 2 out of 5

Thursday, May 14, 2026

Weather Forecast

Sunny
65.6°F
38.2°F
52.7°F
72%
0 in
0%
0%
10.7 mph
7.5


Air Quality

AQI: 1 - Good
PM2.5: 6.87 μg/m3
PM10: 7.59 μg/m3
Carbon Monoxide: 185.23 μg/m3
Nitrogen Dioxide: 15.53 μg/m3
Sulphur Dioxide: 1.8 μg/m3
Ozone: 56.46 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 12:54 AM
Sunset: 8:14 PM
Daylight: 14 hrs 39 mins
Moonrise: 3:55 AM
Moon Transit: 10:49 AM
Moonset: 5:59 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:19 AM - 12:49 AM

Minor Periods

5:29 PM - 6:59 PM
3:25 AM - 4:55 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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