National Weather Service United States Department of Commerce

Heavy Rainfall Possible in the Upper Midwest, South Texas, and Puerto Rico and the Virgin Islands

Scattered thunderstorms and heavy rainfall may bring areas of flooding though the weekend over the Upper Midwest. A tropical disturbance will bring moderate to locally heavy rain to portions of South Texas into Saturday. Tropical Storm Erin may bring isolated flash and urban flooding, landslides or mudslides, and tropical storm conditions to Puerto Rico and the U.S. Virgin Islands. Read More >

Increasingly humid conditions will be seen today through the weekend. Afternoon heat index values greater than 100 degrees are likely Saturday and Sunday for most of the forecast area, especially along and south of I-80. There are low (<30%) chances of storms this weekend that may dampen the heat some, but confidence in this is low. Remember to stay hydrated this weekend!
Dangerous heat returns this weekend with heat index values above 100 degrees during the afternoon hours. Remember to drink plenty of water and take frequent breaks in the shade if outdoors. There are low chances of storms Saturday and Sunday along and north of Hwy 30 that may keep temperatures and heat index values a little lower if they occur.
With another round of heat and humidity this weekend, please remain safe if you must be outside. Remember to check on those who are most vulnerable to the heat and do not forget about your pets.