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

-11.9°F
Clear
Clear
-26.2°F
-9.4°F
48%
WNW 6 mph
11.7 mph
-24.2°F
-27.7°F
0 in
25%
9 mi
1040 mbar
0

Five Day Weather Forecast

Sunny
Fri
H: -0°F
L: -17°F
Overcast
Sat
H: 5°F
L: -18°F
Partly Cloudy
Sun
H: 12°F
L: 2°F
Sunny
Mon
H: 13°F
L: -3°F
Light freezing rain
Tue
H: 19°F
L: 1°F

Air Quality

AQI: 1 - Good
PM2.5: 4.55 μg/m3
PM10: 4.85 μg/m3
Carbon Monoxide: 182.85 μg/m3
Nitrogen Dioxide: 9.35 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 51 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

Cold Weather Advisory issued January 23 at 10:11AM CST until January 24 at 12:00PM CST by NWS Milwaukee/Sullivan WI

Effective: Fri January 23, 2026, 10:11 AM
Expires: Fri January 23, 2026, 6:15 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 35 to 40 below zero this morning. For the Cold Weather Advisory, very cold wind chills as low as 20 to 29 below zero expected this afternoon through Saturday morning. * WHERE...Portions of south central and southeast Wisconsin. * WHEN...For the Extreme Cold Warning, until 1 PM CST this afternoon. For the Cold Weather Advisory, until noon CST Saturday. * IMPACTS...The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.


Extreme Cold Warning issued January 23 at 10:11AM CST until January 23 at 1:00PM CST by NWS Milwaukee/Sullivan WI

Effective: Fri January 23, 2026, 10:11 AM
Expires: Fri January 23, 2026, 6:15 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 35 to 40 below zero this morning. For the Cold Weather Advisory, very cold wind chills as low as 20 to 29 below zero expected this afternoon through Saturday morning. * WHERE...Portions of south central and southeast Wisconsin. * WHEN...For the Extreme Cold Warning, until 1 PM CST this afternoon. For the Cold Weather Advisory, until noon CST Saturday. * IMPACTS...The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.


Cold Weather Advisory issued January 23 at 2:09PM CST until January 24 at 12:00PM CST by NWS Milwaukee/Sullivan WI

Effective: Fri January 23, 2026, 2:09 PM
Expires: Fri January 23, 2026, 10:15 PM

* WHAT...Very cold wind chills as low as 20 to 29 below zero expected this afternoon through Saturday morning. * WHERE...Portions of south central and southeast Wisconsin. * WHEN...Until noon CST Saturday. * IMPACTS...The dangerously cold wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 10 minutes.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.


Cold Weather Advisory issued January 23 at 10:11AM CST until January 24 at 12:00PM CST by NWS Milwaukee/Sullivan WI

Effective: Fri January 23, 2026, 10:11 AM
Expires: Fri January 23, 2026, 6:15 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 30 to 38 below zero through tonight. For the Cold Weather Advisory, very cold wind chills as low as 20 to 29 below zero expected Saturday morning. * WHERE...Fond du Lac, Sheboygan, Green Lake, Marquette, Dodge, Ozaukee, and Washington Counties. * WHEN...For the Extreme Cold Warning, until 6 AM CST Saturday. For the Cold Weather Advisory, from 6 AM to noon CST Saturday. * IMPACTS...The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.


Extreme Cold Warning issued January 23 at 10:11AM CST until January 24 at 6:00AM CST by NWS Milwaukee/Sullivan WI

Effective: Fri January 23, 2026, 10:11 AM
Expires: Fri January 23, 2026, 6:15 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 30 to 38 below zero through tonight. For the Cold Weather Advisory, very cold wind chills as low as 20 to 29 below zero expected Saturday morning. * WHERE...Fond du Lac, Sheboygan, Green Lake, Marquette, Dodge, Ozaukee, and Washington Counties. * WHEN...For the Extreme Cold Warning, until 6 AM CST Saturday. For the Cold Weather Advisory, from 6 AM to noon CST Saturday. * IMPACTS...The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.


Extreme Cold Warning issued January 23 at 2:09PM CST until January 24 at 6:00AM CST by NWS Milwaukee/Sullivan WI

Effective: Fri January 23, 2026, 2:09 PM
Expires: Fri January 23, 2026, 10:15 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 30 to 35 below zero through tonight. For the Cold Weather Advisory, very cold wind chills as low as 20 to 29 below zero expected Saturday morning. * WHERE...Fond du Lac, Sheboygan, Green Lake, Marquette, Dodge, Ozaukee, and Washington Counties. * WHEN...For the Extreme Cold Warning, until 6 AM CST Saturday. For the Cold Weather Advisory, from 6 AM to noon CST Saturday. * IMPACTS...The dangerously cold wind chills as low as 35 below zero could cause frostbite on exposed skin in as little as 10 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside.


Cold Weather Advisory issued January 23 at 2:09PM CST until January 24 at 12:00PM CST by NWS Milwaukee/Sullivan WI

Effective: Fri January 23, 2026, 2:09 PM
Expires: Fri January 23, 2026, 10:15 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 30 to 35 below zero through tonight. For the Cold Weather Advisory, very cold wind chills as low as 20 to 29 below zero expected Saturday morning. * WHERE...Fond du Lac, Sheboygan, Green Lake, Marquette, Dodge, Ozaukee, and Washington Counties. * WHEN...For the Extreme Cold Warning, until 6 AM CST Saturday. For the Cold Weather Advisory, from 6 AM to noon CST Saturday. * IMPACTS...The dangerously cold wind chills as low as 35 below zero could cause frostbite on exposed skin in as little as 10 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside.
Friday, January 23, 2026

Weather Forecast

Sunny
-0°F
-17.3°F
-9.9°F
41%
0 in
0%
0%
17.9 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 2.34 μg/m3
PM10: 2.51 μg/m3
Carbon Monoxide: 170.33 μg/m3
Nitrogen Dioxide: 3.58 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 64.64 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

Saturday, January 24, 2026

Weather Forecast

Overcast
4.8°F
-17.9°F
-4.3°F
62%
0 in
0%
0%
4.3 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 5.37 μg/m3
PM10: 5.63 μg/m3
Carbon Monoxide: 202.69 μg/m3
Nitrogen Dioxide: 9.4 μg/m3
Sulphur Dioxide: 1.67 μg/m3
Ozone: 52.12 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:09 AM
Sunset: 5:00 PM
Daylight: 9 hrs 40 mins
Moonrise: 10:00 AM
Moon Transit: 4:45 PM
Moonset: 11:44 PM
Moon Phase: First Quarter
Moon Illumination: 34.7%

Best Times for Fishing or Hunting

Major Periods

3:56 AM - 6:26 AM
4:15 PM - 6:45 PM

Minor Periods

12:00 AM - 12:00 AM
9:30 AM - 11:00 AM

Action Rating: 2 out of 5

Sunday, January 25, 2026

Weather Forecast

Partly Cloudy
12°F
1.8°F
5.5°F
69%
0 in
0%
0%
10.3 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 10.27 μg/m3
PM10: 10.62 μg/m3
Carbon Monoxide: 216.37 μg/m3
Nitrogen Dioxide: 16.88 μg/m3
Sulphur Dioxide: 2.81 μg/m3
Ozone: 46.48 μg/m3

Astronomical

Sunrise: 7:19 AM
Sun Transit: 12:10 AM
Sunset: 5:01 PM
Daylight: 9 hrs 42 mins
Moonrise: 10:23 AM
Moon Transit: 5:34 PM
Moonset: 12:44 AM
Moon Phase: First Quarter
Moon Illumination: 45.8%

Best Times for Fishing or Hunting

Major Periods

4:44 AM - 7:14 AM
5:04 PM - 7:34 PM

Minor Periods

9:53 AM - 11:23 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Monday, January 26, 2026

Weather Forecast

Sunny
12.6°F
-3.2°F
3°F
69%
0 in
0%
0%
15 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 10.33 μg/m3
PM10: 10.54 μg/m3
Carbon Monoxide: 202.93 μg/m3
Nitrogen Dioxide: 8.55 μg/m3
Sulphur Dioxide: 1.94 μg/m3
Ozone: 57.84 μg/m3

Astronomical

Sunrise: 7:18 AM
Sun Transit: 12:10 AM
Sunset: 5:02 PM
Daylight: 9 hrs 44 mins
Moonrise: 10:51 AM
Moon Transit: 6:27 PM
Moonset: 1:01 AM
Moon Phase: First Quarter
Moon Illumination: 57.1%

Best Times for Fishing or Hunting

Major Periods

5:35 AM - 8:05 AM
5:57 PM - 8:27 PM

Minor Periods

10:21 AM - 11:51 AM
12:31 AM - 2:01 AM

Action Rating: 2 out of 5

Tuesday, January 27, 2026

Weather Forecast

Light freezing rain
19.2°F
1.3°F
11.5°F
84%
0 in
78%
25%
15.9 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 11.5 μg/m3
PM10: 11.6 μg/m3
Carbon Monoxide: 217.83 μg/m3
Nitrogen Dioxide: 7.29 μg/m3
Sulphur Dioxide: 1.47 μg/m3
Ozone: 63.69 μg/m3

Astronomical

Sunrise: 7:18 AM
Sun Transit: 12:10 AM
Sunset: 5:03 PM
Daylight: 9 hrs 46 mins
Moonrise: 11:26 AM
Moon Transit: 7:26 PM
Moonset: 2:20 AM
Moon Phase: First Quarter
Moon Illumination: 68.0%

Best Times for Fishing or Hunting

Major Periods

6:31 AM - 9:01 AM
6:56 PM - 9:26 PM

Minor Periods

10:56 AM - 12:26 AM
1:50 AM - 3:20 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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