Water Temperature of Lake Mendota in Madison, WI

Current Water Temperature

55.2°F

Measurement Time: Friday, October 31, 2025, 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

8.1°F
Light snow
Light snow
-12.4°F
2.9°F
72%
NW 22.4 mph
27.7 mph
-16.2°F
-3.6°F
0 in
100%
3 mi
1012 mbar
0

Five Day Weather Forecast

Light freezing rain
Mon
H: 6°F
L: -7°F
Patchy moderate snow
Tue
H: 17°F
L: 1°F
Moderate or heavy snow showers
Wed
H: 24°F
L: 14°F
Cloudy
Thu
H: 26°F
L: 1°F
Moderate or heavy snow showers
Fri
H: 34°F
L: -11°F

Air Quality

AQI: 1 - Good
PM2.5: 2.25 μg/m3
PM10: 2.35 μg/m3
Carbon Monoxide: 175.85 μg/m3
Nitrogen Dioxide: 2.55 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 66 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:08 AM
Sunset: 4:53 PM
Daylight: 9 hrs 30 mins
Moonrise: 8:12 AM
Moon Transit: 12:56 AM
Moonset: 5:50 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

12:07 AM - 2:37 AM
12:26 AM - 2:56 PM

Minor Periods

5:20 PM - 6:50 PM
7:42 AM - 9:12 AM

Action Rating: 5 out of 5

Winter Weather Advisory issued January 18 at 6:09PM CST until January 19 at 12:00PM CST by NWS Milwaukee/Sullivan WI

Effective: Sun January 18, 2026, 6:09 PM
Expires: Mon January 19, 2026, 2:15 AM

* WHAT...Snow. Additional snow accumulations up to one inch. Winds gusting as high as 40 mph. * WHERE...A portion of south central Wisconsin. * WHEN...Until noon CST Monday. * IMPACTS...Plan on slippery road conditions. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the Monday morning commute.

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.


Cold Weather Advisory issued January 18 at 2:20PM CST until January 19 at 12:00PM CST by NWS Milwaukee/Sullivan WI

Effective: Sun January 18, 2026, 2:20 PM
Expires: Sun January 18, 2026, 10:30 PM

* WHAT...Very cold wind chills as low as 22 to 29 below zero expected. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...From 3 AM to noon CST Monday. * IMPACTS...The dangerously cold wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 30 minutes. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible.


Cold Weather Advisory issued January 18 at 8:52PM CST until January 19 at 12:00PM CST by NWS Milwaukee/Sullivan WI

Effective: Sun January 18, 2026, 8:52 PM
Expires: Mon January 19, 2026, 5:00 AM

* WHAT...Very cold wind chills as low as 28 below expected. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...From 3 AM to noon CST Monday. * IMPACTS...The dangerously cold wind chills as low as 28 below zero could cause frostbite on exposed skin in as little as 30 minutes. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible.


Winter Weather Advisory issued January 18 at 8:51PM CST until January 19 at 12:00PM CST by NWS Milwaukee/Sullivan WI

Effective: Sun January 18, 2026, 8:51 PM
Expires: Mon January 19, 2026, 6:00 AM

* WHAT...Snow. Additional snow accumulations up to one inch. Winds gusting as high as 40 mph. * WHERE...A portion of south central Wisconsin. * WHEN...Until noon CST Monday. * IMPACTS...Plan on slippery road conditions. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the Monday morning commute.

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.


Winter Weather Advisory issued January 18 at 6:09PM CST until January 19 at 12:00PM CST by NWS Milwaukee/Sullivan WI

Effective: Sun January 18, 2026, 6:09 PM
Expires: Mon January 19, 2026, 2:15 AM

* WHAT...Snow. Additional snow accumulations up to one inch. Winds gusting as high as 40 mph. * WHERE...Portions of east central and southeast Wisconsin. * WHEN...Until noon CST Monday. * IMPACTS...Plan on slippery road conditions. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the Monday morning commute.

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.


Flood Warning issued January 18 at 3:41PM CST by NWS Milwaukee/Sullivan WI

Effective: Sun January 18, 2026, 3:41 PM
Expires: Mon January 19, 2026, 3:45 AM

...The National Weather Service in Milwaukee/Sullivan WI has issued a Flood Warning for the following rivers in Wisconsin... Bark River Near Rome affecting Jefferson County. .Ice build up from the recent cold snap has resulted in the Bark River near Rome rising into minor flood stage. A Flood Warning is in effect until further notice for the Bark River near Rome in Jefferson County. * WHAT...Minor flooding is occurring. This approaches the flood of record. * WHERE...Bark River near Rome. * WHEN...From this afternoon until further notice. * IMPACTS...At 4.3 feet, There is lowland and agricultural land flooding. * ADDITIONAL DETAILS... - At 3:00 PM CST Sunday the stage was 4.2 feet. - Bankfull stage is 3.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 3:00 PM CST Sunday was 4.3 feet. - Forecast...No forecast is available for this location. - Flood stage is 4.0 feet. - Flood History...This crest compares to a previous crest of 4.2 feet on 01/21/2019. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued late tonight at 345 AM CST.


Winter Weather Advisory issued January 18 at 8:51PM CST until January 19 at 12:00PM CST by NWS Milwaukee/Sullivan WI

Effective: Sun January 18, 2026, 8:51 PM
Expires: Mon January 19, 2026, 6:00 AM

* WHAT...Snow. Additional snow accumulations up to one inch. Winds gusting as high as 40 mph. * WHERE...Portions of east central and southeast Wisconsin. * WHEN...Until noon CST Monday. * IMPACTS...Plan on slippery road conditions. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the Monday morning commute.

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.


Monday, January 19, 2026

Weather Forecast

Light freezing rain
6.1°F
-7.4°F
0.9°F
70%
0.01 in
81%
10%
23.9 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.51 μg/m3
PM10: 3.73 μg/m3
Carbon Monoxide: 191.97 μg/m3
Nitrogen Dioxide: 4.74 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 65 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:08 AM
Sunset: 4:53 PM
Daylight: 9 hrs 30 mins
Moonrise: 8:12 AM
Moon Transit: 12:56 AM
Moonset: 5:50 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

12:07 AM - 2:37 AM
12:26 AM - 2:56 PM

Minor Periods

5:20 PM - 6:50 PM
7:42 AM - 9:12 AM

Action Rating: 5 out of 5

Tuesday, January 20, 2026

Weather Forecast

Patchy moderate snow
16.9°F
1.2°F
7.6°F
71%
0.04 in
74%
0%
15.7 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 4.77 μg/m3
PM10: 5.06 μg/m3
Carbon Monoxide: 201.41 μg/m3
Nitrogen Dioxide: 6.21 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 67.48 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:08 AM
Sunset: 4:55 PM
Daylight: 9 hrs 31 mins
Moonrise: 8:38 AM
Moon Transit: 1:44 PM
Moonset: 7:01 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

12:55 AM - 3:25 AM
1:14 PM - 3:44 PM

Minor Periods

6:31 PM - 8:01 PM
8:08 AM - 9:38 AM

Action Rating: 3 out of 5

Wednesday, January 21, 2026

Weather Forecast

Moderate or heavy snow showers
23.8°F
13.6°F
19°F
82%
1.18 in
79%
23%
16.6 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 12.47 μg/m3
PM10: 12.98 μg/m3
Carbon Monoxide: 227.89 μg/m3
Nitrogen Dioxide: 14.97 μg/m3
Sulphur Dioxide: 1.91 μg/m3
Ozone: 53 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 12:09 AM
Sunset: 4:56 PM
Daylight: 9 hrs 33 mins
Moonrise: 8:59 AM
Moon Transit: 2:29 PM
Moonset: 8:11 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%

Best Times for Fishing or Hunting

Major Periods

1:41 AM - 4:11 AM
1:59 PM - 4:29 PM

Minor Periods

7:41 PM - 9:11 PM
8:29 AM - 9:59 AM

Action Rating: 3 out of 5

Thursday, January 22, 2026

Weather Forecast

Cloudy
26.1°F
0.6°F
9.2°F
78%
0 in
0%
7%
15.7 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.95 μg/m3
PM10: 4.03 μg/m3
Carbon Monoxide: 176.65 μg/m3
Nitrogen Dioxide: 4.69 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 71.6 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 12:09 AM
Sunset: 4:57 PM
Daylight: 9 hrs 35 mins
Moonrise: 9:19 AM
Moon Transit: 12:00 AM
Moonset: 9:20 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:26 AM - 4:56 AM

Minor Periods

8:50 PM - 10:20 PM
8:49 AM - 10:19 AM

Action Rating: 2 out of 5

Friday, January 23, 2026

Weather Forecast

Moderate or heavy snow showers
33.9°F
-10.9°F
16.1°F
86%
0.08 in
87%
17%
16.1 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.2 μg/m3
PM10: 2.31 μg/m3
Carbon Monoxide: 167.08 μg/m3
Nitrogen Dioxide: 3.81 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 71.54 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:09 AM
Sunset: 4:58 PM
Daylight: 9 hrs 37 mins
Moonrise: 9:39 AM
Moon Transit: 8:54 AM
Moonset: 10:32 PM
Moon Phase: Waxing Crescent
Moon Illumination: 24.4%

Best Times for Fishing or Hunting

Major Periods

8:24 AM - 10:54 AM
8:24 AM - 10:54 AM

Minor Periods

10:02 PM - 11:32 PM
9:09 AM - 10:39 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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