Water Temperature of Lake Mendota in Madison, WI
Current Water Temperature
Measurement Time: Thursday, April 9, 2026, 10:15 AM CDT
Temperature Locations
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Local Points of Interest
Maple Bluff, WI; Shorewood Hills, WI; Middleton, WI; Waunakee, WIStation 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

Five Day Weather Forecast

Thu
H: 64°F
L: 43°F

Fri
H: 52°F
L: 39°F

Sat
H: 50°F
L: 33°F

Sun
H: 69°F
L: 47°F

Mon
H: 73°F
L: 62°F
Air Quality
Nitrogen Dioxide: 9.75 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 64 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:33 PM
Daylight: 13 hrs 7 mins
Moon Transit: 6:39 AM
Moonset: 10:54 AM
Moon Phase: Last Quarter
Moon Illumination: 41.9%
Best Times for Fishing or Hunting
Major Periods
6:09 AM - 8:39 AM6:39 PM - 9:09 PM
Minor Periods
10:24 AM - 11:54 AM1:59 AM - 3:29 AM
Action Rating: 3 out of 5
Flood Warning issued April 9 at 4:50AM CDT until April 11 at 3:00PM CDT by NWS Milwaukee/Sullivan WI
Effective: Thu April 9, 2026, 4:50 AM
Expires: Thu April 9, 2026, 5:00 PM
...The Flood Warning continues for the following rivers in Wisconsin... Wisconsin River At Portage affecting Columbia County. Baraboo River At Rock Springs affecting Sauk County. Baraboo River Near Baraboo affecting Columbia and Sauk Counties. ...The Flood Warning is cancelled for the following rivers in Wisconsin...Illinois... Fox River Lower Near New Munster affecting Lake and Kenosha Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Baraboo River near Baraboo. * WHEN...Until Saturday afternoon. * IMPACTS...At 18.0 feet, If Wisconsin River at Portage up to 17 feet also, water approaches gravel of I-39 off ramp to Cascade Mt Rd. There is widespread flooding of agricultural land. * ADDITIONAL DETAILS... - At 4:00 AM CDT Thursday the stage was 16.6 feet. - Bankfull stage is 14.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 4:00 AM CDT Thursday was 16.9 feet. - Forecast...The river is expected to rise to a crest of 17.6 feet just after midnight tonight. It will then fall below flood stage late Saturday morning. - Flood stage is 16.0 feet. - Flood History...This crest compares to a previous crest of 17.6 feet on 02/27/1985. - http://www.weather.gov/safety/flood
Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov. The next statement will be issued this morning at 600 AM CDT.
Flood Warning issued April 9 at 10:34AM CDT until April 11 at 7:00PM CDT by NWS Milwaukee/Sullivan WI
Effective: Thu April 9, 2026, 10:34 AM
Expires: Thu April 9, 2026, 10:45 PM
...The Flood Warning is extended for the following rivers in Wisconsin... Baraboo River Near Baraboo affecting Columbia and Sauk Counties. ...The Flood Warning is cancelled for the following rivers in Wisconsin... Baraboo River At Rock Springs affecting Sauk County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Baraboo River near Baraboo. * WHEN...Until Saturday evening. * IMPACTS...At 17.0 feet, If Wisconsin River at Portage up to 17 feet also, water impacts parking lots near Hwy 33 and water over Tritz Rd near Hwy 33. There is widespread flooding of agricultural land. * ADDITIONAL DETAILS... - At 8:00 AM CDT Thursday the stage was 16.7 feet. - Bankfull stage is 14.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:00 AM CDT Thursday was 16.9 feet. - Forecast...The river is expected to rise to a crest of 16.9 feet tomorrow morning. It will then fall below flood stage early Saturday afternoon. - Flood stage is 16.0 feet. - Flood History...This crest compares to a previous crest of 17.0 feet on 03/22/1975. - http://www.weather.gov/safety/flood
Caution is urged when walking near riverbanks. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.weather.gov. The next statement will be issued this morning at 1145 AM CDT.
Flood Warning issued April 9 at 4:50AM CDT until April 9 at 1:00PM CDT by NWS Milwaukee/Sullivan WI
Effective: Thu April 9, 2026, 4:50 AM
Expires: Thu April 9, 2026, 1:00 PM
...The Flood Warning continues for the following rivers in Wisconsin... Wisconsin River At Portage affecting Columbia County. Baraboo River At Rock Springs affecting Sauk County. Baraboo River Near Baraboo affecting Columbia and Sauk Counties. ...The Flood Warning is cancelled for the following rivers in Wisconsin...Illinois... Fox River Lower Near New Munster affecting Lake and Kenosha Counties. * WHAT...Minor flooding is forecast. * WHERE...Baraboo River at Rock Springs. * WHEN...Until this afternoon. * IMPACTS...At 19.0 feet, The river is well out of its banks and floodwaters affect a low spot on Highway DD in Rock Springs. Farm fields are flooded in the Loganville area. * ADDITIONAL DETAILS... - At 4:00 AM CDT Thursday the stage was 17.7 feet. - Bankfull stage is 13.5 feet. - Forecast...The river is expected to rise to a crest of 18.5 feet this morning. - Flood stage is 18.5 feet. - Flood History...This crest compares to a previous crest of 18.2 feet on 03/06/2004. - http://www.weather.gov/safety/flood
Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov. The next statement will be issued this morning at 600 AM CDT.
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.67 μg/m3
Sulphur Dioxide: 1.53 μg/m3
Ozone: 86.36 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:33 PM
Daylight: 13 hrs 7 mins
Moon Transit: 6:39 AM
Moonset: 10:54 AM
Moon Phase: Last Quarter
Moon Illumination: 41.9%
Best Times for Fishing or Hunting
Major Periods
6:09 AM - 8:39 AM6:39 PM - 9:09 PM
Minor Periods
10:24 AM - 11:54 AM1:59 AM - 3:29 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 8.61 μg/m3
Sulphur Dioxide: 2.07 μg/m3
Ozone: 64.28 μg/m3
Astronomical
Sun Transit: 12:58 AM
Sunset: 7:34 PM
Daylight: 13 hrs 10 mins
Moon Transit: 7:29 AM
Moonset: 11:58 AM
Moon Phase: Last Quarter
Moon Illumination: 31.0%
Best Times for Fishing or Hunting
Major Periods
6:59 AM - 9:29 AM7:30 PM - 10:00 PM
Minor Periods
11:28 AM - 12:58 AM2:37 AM - 4:07 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 10.22 μg/m3
Sulphur Dioxide: 2.49 μg/m3
Ozone: 70.84 μg/m3
Astronomical
Sun Transit: 12:58 AM
Sunset: 7:36 PM
Daylight: 13 hrs 13 mins
Moon Transit: 8:18 AM
Moonset: 1:06 PM
Moon Phase: Last Quarter
Moon Illumination: 21.1%
Best Times for Fishing or Hunting
Major Periods
7:48 AM - 10:18 AM8:17 PM - 10:47 PM
Minor Periods
12:36 AM - 2:06 PM3:09 AM - 4:39 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.1 μg/m3
Sulphur Dioxide: 3.24 μg/m3
Ozone: 84 μg/m3
Astronomical
Sun Transit: 12:58 AM
Sunset: 7:37 PM
Daylight: 13 hrs 16 mins
Moon Transit: 9:05 AM
Moonset: 2:15 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.6%
Best Times for Fishing or Hunting
Major Periods
8:35 AM - 11:05 AM9:03 PM - 11:33 PM
Minor Periods
1:45 PM - 3:15 PM3:35 AM - 5:05 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.49 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 73.62 μg/m3
Astronomical
Sun Transit: 12:58 AM
Sunset: 7:38 PM
Daylight: 13 hrs 19 mins
Moon Transit: 9:51 AM
Moonset: 3:25 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.1%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:21 AM - 11:51 AM
Minor Periods
2:55 PM - 4:25 PM3:59 AM - 5:29 AM
Action Rating: 2 out of 5
