Water Temperature of Lake Monona in Madison, WI

Current Water Temperature

78.3°F

Measurement Time: Monday, July 27, 2026, 8:00 AM CDT

Temperature Locations

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Local Points of Interest

Brittingham Park; Brittingham Beach; Menona Bay; Greenbush

Lake Monona

Station Name: LAKE MONONA AT MADISON, WI
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 840 feet

Nearest Address:
795 W Washington Ave
Madison, WI 53715
Dane County

GPS Coordinates: 43.0633297, -89.3970636

Nearby Water Temperatures

Lake Mendota, Madison, WI (2.5 mi)
Swan Creek, Fitchburg, WI (4.8 mi)
Pheasant Branch, Middleton, WI (6.4 mi)
Badger Mill Creek, Verona, WI (9.3 mi)
Yahara River, Windsor, WI (10.3 mi)
Sugar River, Verona, WI (10.8 mi)
Black Earth Creek, Cross Plains, WI (12.7 mi)
Brewery Creek, Cross Plains, WI (12.7 mi)
Black Earth Creek, Cross Plains, WI (13.9 mi)
Black Earth Creek, Black Earth, WI (17.6 mi)
Eagle Spring Lake, Mukwonago, WI (50.7 mi)
Wisconsin River, Muscoda, WI (53.6 mi)
Rock River, Byron, IL (65.4 mi)
Fox River, Berlin, WI (65.4 mi)
Fox River, Burlington, WI (67.1 mi)

Weather for Madison, Wisconsin

Current Weather

99.3°F
Sunny
Sunny
118.4°F
119°F
52%
SW 14.8 mph
23.5 mph
99.3°F
78.6°F
0 in
14%
6 mi
1005 mbar
9.5

Five Day Weather Forecast

Sunny
Mon
H: 102°F
L: 75°F
Sunny
Tue
H: 83°F
L: 62°F
Sunny
Wed
H: 86°F
L: 60°F
Sunny
Thu
H: 88°F
L: 65°F
Partly Cloudy
Fri
H: 74°F
L: 64°F

Air Quality

AQI: 1 - Good
PM2.5: 6 μg/m3
PM10: 7.4 μg/m3
Carbon Monoxide: 122 μg/m3
Nitrogen Dioxide: 1.2 μg/m3
Sulphur Dioxide: 0.9 μg/m3
Ozone: 110 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:04 PM
Sunset: 8:25 PM
Daylight: 14 hrs 42 mins
Moonrise: 7:40 PM
Moon Transit: 12:00 AM
Moonset: 3:23 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:10 AM - 1:40 PM

Minor Periods

7:10 PM - 8:40 PM
2:53 AM - 4:23 AM

Action Rating: 3 out of 5

Extreme Heat Warning issued July 27 at 9:06AM CDT until July 27 at 9:00PM CDT by NWS Milwaukee/Sullivan WI

Effective: Mon July 27, 2026, 9:06 AM
Expires: Mon July 27, 2026, 5:15 PM

* WHAT...Dangerously hot conditions with heat index values up to 105. * WHERE...Columbia, Dane, Green, Iowa, Lafayette, Rock, and Sauk Counties. * WHEN...Until 9 PM CDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Dense Fog Advisory issued July 27 at 5:09AM CDT until July 27 at 8:00AM CDT by NWS Milwaukee/Sullivan WI

Effective: Mon July 27, 2026, 5:09 AM
Expires: Mon July 27, 2026, 1:15 PM

* WHAT...For the Dense Fog Advisory, visibility one half mile or less in dense fog. For the Heat Advisory, heat index values up to 100 expected. * WHERE...Dodge County. * WHEN...For the Dense Fog Advisory, until 8 AM CDT this morning. For the Heat Advisory, from 10 AM this morning to 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Low visibility could make driving conditions hazardous.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.


Heat Advisory issued July 27 at 5:09AM CDT until July 27 at 9:00PM CDT by NWS Milwaukee/Sullivan WI

Effective: Mon July 27, 2026, 5:09 AM
Expires: Mon July 27, 2026, 1:15 PM

* WHAT...For the Dense Fog Advisory, visibility one half mile or less in dense fog. For the Heat Advisory, heat index values up to 100 expected. * WHERE...Dodge County. * WHEN...For the Dense Fog Advisory, until 8 AM CDT this morning. For the Heat Advisory, from 10 AM this morning to 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Low visibility could make driving conditions hazardous.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.


Heat Advisory issued July 27 at 3:07AM CDT until July 27 at 9:00PM CDT by NWS Milwaukee/Sullivan WI

Effective: Mon July 27, 2026, 3:07 AM
Expires: Mon July 27, 2026, 11:15 AM

* WHAT...For the Dense Fog Advisory, visibility as low as 1/2 mile in dense fog. For the Heat Advisory, heat index values up to 101 expected. * WHERE...Dane, Green, Iowa, Lafayette, Rock, Jefferson, and Walworth Counties. * WHEN...For the Dense Fog Advisory, until 8 AM CDT this morning. For the Heat Advisory, from 10 AM this morning to 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Low visibility could make driving conditions hazardous.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.


Dense Fog Advisory issued July 27 at 3:07AM CDT until July 27 at 8:00AM CDT by NWS Milwaukee/Sullivan WI

Effective: Mon July 27, 2026, 3:07 AM
Expires: Mon July 27, 2026, 11:15 AM

* WHAT...For the Dense Fog Advisory, visibility as low as 1/2 mile in dense fog. For the Heat Advisory, heat index values up to 101 expected. * WHERE...Dane, Green, Iowa, Lafayette, Rock, Jefferson, and Walworth Counties. * WHEN...For the Dense Fog Advisory, until 8 AM CDT this morning. For the Heat Advisory, from 10 AM this morning to 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Low visibility could make driving conditions hazardous.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Monday, July 27, 2026

Weather Forecast

Sunny
102°F
75.4°F
87.2°F
69%
0 in
6%
0%
22.4 mph
9.5


Air Quality

AQI: 1 - Good
PM2.5: 4.94 μg/m3
PM10: 5.55 μg/m3
Carbon Monoxide: 141.71 μg/m3
Nitrogen Dioxide: 5.39 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 78 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:04 PM
Sunset: 8:25 PM
Daylight: 14 hrs 42 mins
Moonrise: 7:40 PM
Moon Transit: 12:00 AM
Moonset: 3:23 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:10 AM - 1:40 PM

Minor Periods

7:10 PM - 8:40 PM
2:53 AM - 4:23 AM

Action Rating: 3 out of 5

Tuesday, July 28, 2026

Weather Forecast

Sunny
82.9°F
61.9°F
72°F
71%
0 in
7%
0%
11.9 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 7.2 μg/m3
PM10: 7.52 μg/m3
Carbon Monoxide: 149.75 μg/m3
Nitrogen Dioxide: 4.51 μg/m3
Sulphur Dioxide: 0.56 μg/m3
Ozone: 71.92 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:04 PM
Sunset: 8:24 PM
Daylight: 14 hrs 39 mins
Moonrise: 8:14 PM
Moon Transit: 12:00 AM
Moonset: 4:26 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 2:30 PM

Minor Periods

7:44 PM - 9:14 PM
3:56 AM - 5:26 AM

Action Rating: 4 out of 5

Wednesday, July 29, 2026

Weather Forecast

Sunny
85.9°F
60.4°F
72.8°F
64%
0 in
5%
0%
11.6 mph
8.3


Air Quality

AQI: 1 - Good
PM2.5: 7.05 μg/m3
PM10: 7.3 μg/m3
Carbon Monoxide: 161.17 μg/m3
Nitrogen Dioxide: 7.86 μg/m3
Sulphur Dioxide: 0.64 μg/m3
Ozone: 66.63 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:04 PM
Sunset: 8:22 PM
Daylight: 14 hrs 37 mins
Moonrise: 8:42 PM
Moon Transit: 12:49 AM
Moonset: 5:32 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:19 AM - 2:49 AM
12:48 AM - 3:18 PM

Minor Periods

8:12 PM - 9:42 PM
5:02 AM - 6:32 AM

Action Rating: 4 out of 5

Thursday, July 30, 2026

Weather Forecast

Sunny
87.5°F
65.4°F
75.7°F
68%
0 in
5%
0%
12.1 mph
6.8


Air Quality

AQI: 1 - Good
PM2.5: 7.02 μg/m3
PM10: 7.32 μg/m3
Carbon Monoxide: 171.97 μg/m3
Nitrogen Dioxide: 5.84 μg/m3
Sulphur Dioxide: 0.73 μg/m3
Ozone: 84.71 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 1:04 PM
Sunset: 8:21 PM
Daylight: 14 hrs 35 mins
Moonrise: 9:05 PM
Moon Transit: 1:36 AM
Moonset: 6:39 AM
Moon Phase: Full
Moon Illumination: 97.1%

Best Times for Fishing or Hunting

Major Periods

1:06 AM - 3:36 AM
1:33 PM - 4:03 PM

Minor Periods

8:35 PM - 10:05 PM
6:09 AM - 7:39 AM

Action Rating: 5 out of 5

Friday, July 31, 2026

Weather Forecast

Partly Cloudy
74.3°F
63.6°F
69.1°F
85%
0.03 in
55%
0%
8.7 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 4.8 μg/m3
PM10: 5 μg/m3
Carbon Monoxide: 236 μg/m3
Nitrogen Dioxide: 8.01 μg/m3
Sulphur Dioxide: 0.46 μg/m3
Ozone: 61.13 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:04 PM
Sunset: 8:20 PM
Daylight: 14 hrs 33 mins
Moonrise: 9:25 PM
Moon Transit: 2:20 AM
Moonset: 7:46 AM
Moon Phase: Full
Moon Illumination: 92.0%

Best Times for Fishing or Hunting

Major Periods

1:50 AM - 4:20 AM
2:17 PM - 4:47 PM

Minor Periods

8:55 PM - 10:25 PM
7:16 AM - 8:46 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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