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

Heat Advisory issued July 25 at 8:30PM CDT until July 26 at 8:00PM CDT by NWS Chicago IL

Effective: Sat July 25, 2026, 8:30 PM
Expires: Sun July 26, 2026, 6:30 AM

* WHAT...Heat index values up to 105 expected. * WHERE...Livingston, Boone, La Salle, Lee, Ogle, and Winnebago Counties. * WHEN...From noon to 8 PM CDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

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

Heat Advisory issued July 26 at 3:18AM CDT until July 26 at 8:00PM CDT by NWS Chicago IL

Effective: Sun July 26, 2026, 3:18 AM
Expires: Sun July 26, 2026, 1:30 PM

* WHAT...Heat index values as high as 105 expected. * WHERE...Livingston, Boone, La Salle, Lee, Ogle, and Winnebago Counties. * WHEN...From noon today to 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

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

Heat Advisory issued July 25 at 11:43PM CDT until July 26 at 9:00PM CDT by NWS Milwaukee/Sullivan WI

Effective: Sat July 25, 2026, 11:43 PM
Expires: Sun July 26, 2026, 7:45 AM

* WHAT...Heat index values of 100 to 103 degrees expected. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...From noon to 9 PM CDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Areas along the immediate Lake Michigan shoreline may see some relief from the heat with a lake breeze in the afternoon hours.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

Heat Advisory issued July 26 at 5:10AM CDT until July 26 at 9:00PM CDT by NWS Milwaukee/Sullivan WI

Effective: Sun July 26, 2026, 5:10 AM
Expires: Sun July 26, 2026, 1:15 PM

* WHAT...Heat index values of 100 to 103 degrees expected. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...From noon today to 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Areas along the immediate Lake Michigan shoreline may see some relief from the heat with a lake breeze in the afternoon hours.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.