Water Temperature of Lake Mendota in Madison, WI

Current Water Temperature

77.2°F

Measurement Time: Tuesday, August 8, 2023, 10:15 AM CDT

Temperature Locations

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Local Points of Interest

Maple Bluff, WI; Shorewood Hills, WI; Middleton, WI; Waunakee, WI

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Lake Mendota

Station Name: Madison 2NW
Data Source: USGS

Elevation Above Sea Level: 846 feet / 258 meters

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 (8.0 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

69.1°F
Moderate or heavy rain with thunder
Conditions: Moderate or heavy rain with thunder
Humidity: 93%
Feels Like: 69.1°F
Wind: S 4.5 mph
Wind Gusts: 8.2 mph
Pressure: 29.8 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 8 mi
UV Index: 0

Five Day Weather Forecast

Heavy rain
Fri
H: 80°F
L: 66°F
Heavy rain
Sat
H: 88°F
L: 62°F
Overcast
Sun
H: 79°F
L: 63°F
Cloudy
Mon
H: 89°F
L: 64°F
Patchy rain nearby
Tue
H: 84°F
L: 68°F

Air Quality

AQI: 2 - Moderate
PM2.5: 5.55 μg/m3
PM10: 6.11 μg/m3
Carbon Monoxide: 351.5 μg/m3
Nitrogen Dioxide: 11.29 μg/m3
Sulphur Dioxide: 1.48 μg/m3
Ozone: 87 μg/m3

Astronomical

Sunrise: 5:29 AM
Sun Transit: 1:03 PM
Sunset: 8:38 PM
Daylight: 15 hrs 9 mins
Moonrise: 9:42 PM
Moon Transit: 1:27 AM
Moonset: 5:53 AM
Moon Phase: Full
Moon Illumination: 97.4%

Best Times for Fishing or Hunting

Major Periods

12:57 AM - 3:27 AM
1:28 PM - 3:58 PM

Minor Periods

9:12 PM - 10:42 PM
5:23 AM - 6:53 AM

Action Rating: 4 out of 5

Severe Thunderstorm Warning issued July 11 at 7:23PM CDT until July 11 at 8:00PM CDT by NWS Milwaukee/Sullivan WI

Effective: Fri July 11, 2025, 7:23 PM
Expires: Fri July 11, 2025, 8:00 PM

At 723 PM CDT, severe thunderstorms were located along a line extending from Madison to Deerfield, moving north at 20 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Madison, Sun Prairie, Fitchburg, Middleton, Stoughton, Waunakee, Verona, Oregon, McFarland, Monona, Windsor, Edgerton, Marshall, Cottage Grove, Belleville, Deerfield, Shorewood Hills, Cambridge, Brooklyn, and Maple Bluff.

A Tornado Watch remains in effect until 1100 PM CDT for south central and southeastern Wisconsin. For your protection move to an interior room on the lowest floor of a building.


Severe Thunderstorm Warning issued July 11 at 6:55PM CDT until July 11 at 7:30PM CDT by NWS Milwaukee/Sullivan WI

Effective: Fri July 11, 2025, 6:55 PM
Expires: Fri July 11, 2025, 7:30 PM

At 655 PM CDT, a severe thunderstorm was located over Waunakee, moving north at 10 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Middleton, Waunakee, Windsor, Deforest, Dane, and Morrisonville.

A Tornado Watch remains in effect until 1100 PM CDT for south central Wisconsin. Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building.


Flash Flood Warning issued July 11 at 6:40PM CDT until July 11 at 9:45PM CDT by NWS Milwaukee/Sullivan WI

Effective: Fri July 11, 2025, 6:40 PM
Expires: Fri July 11, 2025, 9:45 PM

FFWMKX The National Weather Service in Milwaukee/Sullivan has issued a * Flash Flood Warning for... Southwestern Dane County in south central Wisconsin... Northwestern Green County in south central Wisconsin... Southeastern Iowa County in south central Wisconsin... Northeastern Lafayette County in south central Wisconsin... * Until 945 PM CDT. * At 640 PM CDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 2 and 3 inches of rain have fallen. The expected rainfall rate is 1 to 2 inches in 1 hour. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar and automated gauges. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... Blanchardville and Yellowstone Lake St Park.

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route.


Flash Flood Warning issued July 11 at 5:16PM CDT until July 11 at 8:15PM CDT by NWS Milwaukee/Sullivan WI

Effective: Fri July 11, 2025, 5:16 PM
Expires: Fri July 11, 2025, 8:15 PM

FFWMKX The National Weather Service in Milwaukee/Sullivan has issued a * Flash Flood Warning for... Southwestern Dane County in south central Wisconsin... Northwestern Green County in south central Wisconsin... Southeastern Iowa County in south central Wisconsin... Northeastern Lafayette County in south central Wisconsin... * Until 815 PM CDT. * At 516 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. The expected rainfall rate is 1 to 1.5 inches in 1 hour. Additional rainfall amounts of 0.5 to 1 inch are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Blanchardville, Hollandale, Mount Vernon and Yellowstone Lake St Park.

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.


Tornado Watch issued July 11 at 4:51PM CDT until July 11 at 11:00PM CDT by NWS Milwaukee/Sullivan WI

Effective: Fri July 11, 2025, 4:51 PM
Expires: Fri July 11, 2025, 11:00 PM

THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 508 UNTIL 11 PM CDT THIS EVENING WHICH REPLACES A PORTION OF SEVERE THUNDERSTORM WATCH 506. THE NEW WATCH IS VALID FOR THE FOLLOWING AREAS IN WISCONSIN THE NEW WATCH INCLUDES 5 COUNTIES IN SOUTH CENTRAL WISCONSIN DANE GREEN IOWA LAFAYETTE ROCK THIS INCLUDES THE CITIES OF ARGYLE, BARNEVELD, BELMONT, BELOIT, BENTON, BLANCHARDVILLE, BRODHEAD, DARLINGTON, DODGEVILLE, JANESVILLE, MADISON, MINERAL POINT, MONROE, AND SHULLSBURG.


Friday, July 11, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 70.3°F
Average Humidity: 93%
Chance of Rain: 88%
Wind: 12.1 mph
UV Index: 1.6

Air Quality

AQI: 1 - Good
PM2.5: 6.4 μg/m3
PM10: 7.24 μg/m3
Carbon Monoxide: 398.27 μg/m3
Nitrogen Dioxide: 10.94 μg/m3
Sulphur Dioxide: 1.29 μg/m3
Ozone: 80.64 μg/m3

Astronomical

Sunrise: 5:29 AM
Sun Transit: 1:03 PM
Sunset: 8:38 PM
Daylight: 15 hrs 9 mins
Moonrise: 9:42 PM
Moon Transit: 1:27 AM
Moonset: 5:53 AM
Moon Phase: Full
Moon Illumination: 97.4%

Best Times for Fishing or Hunting

Major Periods

12:57 AM - 3:27 AM
1:28 PM - 3:58 PM

Minor Periods

9:12 PM - 10:42 PM
5:23 AM - 6:53 AM

Action Rating: 4 out of 5

Saturday, July 12, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 73.1°F
Average Humidity: 87%
Chance of Rain: 88%
Wind: 12.3 mph
UV Index: 2.1

Air Quality

AQI: 1 - Good
PM2.5: 6.49 μg/m3
PM10: 6.91 μg/m3
Carbon Monoxide: 357.57 μg/m3
Nitrogen Dioxide: 8.13 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 86.56 μg/m3

Astronomical

Sunrise: 5:29 AM
Sun Transit: 1:03 PM
Sunset: 8:37 PM
Daylight: 15 hrs 8 mins
Moonrise: 10:11 PM
Moon Transit: 2:19 AM
Moonset: 7:05 AM
Moon Phase: Full
Moon Illumination: 92.7%

Best Times for Fishing or Hunting

Major Periods

1:49 AM - 4:19 AM
2:19 PM - 4:49 PM

Minor Periods

9:41 PM - 11:11 PM
6:35 AM - 8:05 AM

Action Rating: 3 out of 5

Sunday, July 13, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 70.9°F
Average Humidity: 79%
Chance of Rain: 0%
Wind: 8.3 mph
UV Index: 1.7

Air Quality

AQI: 2 - Moderate
PM2.5: 18.77 μg/m3
PM10: 18.8 μg/m3
Carbon Monoxide: 408.41 μg/m3
Nitrogen Dioxide: 6.99 μg/m3
Sulphur Dioxide: 1.01 μg/m3
Ozone: 84.4 μg/m3

Astronomical

Sunrise: 5:30 AM
Sun Transit: 1:03 PM
Sunset: 8:36 PM
Daylight: 15 hrs 6 mins
Moonrise: 10:35 PM
Moon Transit: 3:09 AM
Moonset: 8:19 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

2:39 AM - 5:09 AM
3:08 PM - 5:38 PM

Minor Periods

10:05 PM - 11:35 PM
7:49 AM - 9:19 AM

Action Rating: 3 out of 5

Monday, July 14, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 73.9°F
Average Humidity: 85%
Chance of Rain: 0%
Wind: 13.6 mph
UV Index: 2.2

Air Quality

AQI: 2 - Moderate
PM2.5: 18.31 μg/m3
PM10: 18.49 μg/m3
Carbon Monoxide: 482.55 μg/m3
Nitrogen Dioxide: 13.86 μg/m3
Sulphur Dioxide: 1.14 μg/m3
Ozone: 84.04 μg/m3

Astronomical

Sunrise: 5:31 AM
Sun Transit: 1:03 PM
Sunset: 8:36 PM
Daylight: 15 hrs 5 mins
Moonrise: 10:56 PM
Moon Transit: 3:57 AM
Moonset: 9:31 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

3:27 AM - 5:57 AM
3:55 PM - 6:25 PM

Minor Periods

10:26 PM - 11:56 PM
9:01 AM - 10:31 AM

Action Rating: 3 out of 5

Tuesday, July 15, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 75.3°F
Average Humidity: 87%
Chance of Rain: 86%
Wind: 12.8 mph
UV Index: 2.3

Air Quality

AQI: 2 - Moderate
PM2.5: 15.67 μg/m3
PM10: 15.87 μg/m3
Carbon Monoxide: 638.11 μg/m3
Nitrogen Dioxide: 27.24 μg/m3
Sulphur Dioxide: 2.96 μg/m3
Ozone: 77.15 μg/m3

Astronomical

Sunrise: 5:32 AM
Sun Transit: 1:03 PM
Sunset: 8:35 PM
Daylight: 15 hrs 3 mins
Moonrise: 11:16 PM
Moon Transit: 4:44 AM
Moonset: 10:45 AM
Moon Phase: Waning Gibbous
Moon Illumination: 66.7%

Best Times for Fishing or Hunting

Major Periods

4:14 AM - 6:44 AM
12:00 AM - 12:00 AM

Minor Periods

12:00 AM - 12:00 AM
10:15 AM - 11:45 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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