BELOIT - The dog days of summer are here, and next week hot and humid temperatures could prompt a heat advisory, according to a National Weather Service Milwaukee-Sullivan Station official.
Meteorologist Denny VanCleve says southern Wisconsin is expected to warm up over the weekend with Friday and Saturday in the upper 80s, before the real heat kicks in. Monday through Thursday, Stateline Area residents could have to deal with temps around the low-to-mid 90s, according to VanCleve.
Combine those temperatures with a high dew point, and the stifling humidity could push the heat index over 100 degrees, depending on the weather patterns.
"It may not be extreme heat, but it's several degrees above normal," VanCleve said.
He said the warmer weather comes from the broad jet stream pattern, with an upper level ridge area of warmer air coming into the Midwest aided by low level southerly winds.
"That will keep that air pulling into Wisconsin," VanCleve said.
At the Beloit Fire Department, officials are preparing for the heat wave. They are warning of the importance of staying hydrated and recognizing heat stroke symptoms that include throbbing headache, confusion, nausea, dizziness, shallow breathing and hot or red skin. Fainting is also common.
VanCleve said the weather station would not declare a heat advisory until next week when officials were certain of the increased temperatures, with the NWS considering if there's a heat index of 100 or higher along with four days of weather between 95 and 99 degrees.
"That's the threshold," VanCleve said.
The extended forecast for the Stateline Area calls for high temperatures in the mid 80s today with southwest winds up to 10 mph and lows in the upper 60s tonight.
Temperatures will reach the mid 80s again on Saturday with northwest winds at 5 mph and lows Saturday night around the mid 60s.
Sunday will bring highs in the upper 80s with a 20% chance of light showers in the evening. Lows Sunday night will be in the upper 60s.
The heat will ramp up Monday when high temperatures will be around 90 degrees and lows Monday night will be around 70 degrees.
Tuesday's high temperature will be around 90 degrees and the lows Tuesday night will be in the lower 70s.
Wednesday's high will be around 90 degrees.