Weather to know: Heatwave hits Midwest; Hawaii eyes 2 hurricanes

A late summer heatwave will roll across the upper Midwest as storms stare down the Hawaiian Islands this week.

Chicago, Milwaukee and Minneapolis will see excessive heat warnings at least once this week as much of the region will fall under heat advisories.

"Forecast highs in the mid-90s to near 100 combined with high humidity will send heat indices into the 105–115-degree range, with widespread heat-related advisories and warnings in place," the National Weather Service said in its short term forecast.

Hawaii will face down a second named storm as Hurricane Gilma takes aim at the state, following a brush from Hurricane Hone that brought torrential rain and howling winds.

Two named storms have not come within 300 miles of the main Hawaiian Islands within a week since 1992, according to AccuWeather.

Here's what you need to know in weather for the week of Aug. 26.

Hurricane Hone: Hurricane soaks Hawaii with flooding rain; another storm approaching

Hawaii faces down second hurricane threat

Hawaii saw Hurricane Hone brush past them Sunday, dumping up to 18 inches of rain on the islands by Sunday afternoon according to the National Weather Service.

Portions of Maui saw winds of up to 60 mph as the storm sat 175 miles southeast of Honolulu.

A second named storm is taking aim at the islands as Hurricane Gilma churns west. The storm stood just under 1,400 miles east of the big island as of Sunday afternoon with sustained winds of up to 115 mph.

The hurricane center said Gilma figures to weaken as the week goes along, remaining at hurricane level through early Tuesday but losing steam as it approaches Hawaii late Tuesday or early Wednesday.

Summer comes back in the West, heat roils Midwest

The Midwest will see a heat wave roll through, blanketing the region in heat advisories and excessive heat warnings.

"Those without efficient air-conditioning or who must spend time or effort outdoors will be at a heightened risk of heat-related illness," the NWS said.

The Midwest will not suffer alone as the West's preview of fall will come to an end this week and summer returns in force.

"Some locales can see an increase in afternoon high temperatures of up to 35 degrees in just a handful of days," AccuWeather Meteorologist Grady Gilman said.

The temperature shifts and dry conditions will also heighten fire danger in the blaze burned part of the country.

"The fire danger will remain high to end the weekend as the storm responsible for bringing the cooler weather as of late moves across the interior West," AccuWeather said.

Midwest forecast

Minneapolis

Monday

  • High: 90 F

  • Feels Like: 101 F

  • Low: 70 F

Tuesday

  • High: 81 F

  • Feels Like: 85 F

  • Low: 65 F

Wednesday

  • High: 82 F

  • Feels Like: 87 F

  • Low: 68 F

Chicago

Monday

  • High: 93 F

  • Feels Like: 100 F

  • Low: 74 F

Tuesday

  • High: 90 F

  • Feels Like: 101 F

  • Low: 74 F

Wednesday

  • High: 81 F

  • Feels Like: 88 F

  • Low: 71 F

Milwaukee

Monday

  • High: 89 F

  • Feels Like: 98 F

  • Low: 73 F

Tuesday

  • High: 89 F

  • Feels Like: 97 F

  • Low: 70 F

Wednesday

  • High: 81 F

  • Feels Like: 89 F

  • Low: 69 F

Southwest forecast

Los Angeles

Monday

  • High: 89 F

  • Feels Like: 94 F

  • Low: 64 F

Tuesday

  • High: 87 F

  • Feels Like: 92 F

  • Low: 63 F

Wednesday

  • High: 83 F

  • Feels Like: 91 F

  • Low: 64 F

Las Vegas

Monday

  • High: 100 F

  • Feels Like: 103 F

  • Low: 75 F

Tuesday

  • High: 104 F

  • Feels Like: 105 F

  • Low: 78 F

Wednesday

  • High: 105 F

  • Feels Like: 107 F

  • Low: 79 F

Phoenix

Monday

  • High: 108 F

  • Feels Like: 110 F

  • Low: 84 F

Tuesday

  • High: 110 F

  • Feels Like: 110 F

  • Low: 85 F

Wednesday

  • High: 103 F

  • Feels Like: 104 F

  • Low: 81 F

Contributing Jeorge L. Ortiz

This article originally appeared on USA TODAY: Weather forecast: Heatwave hits Midwest; Hawaii eyes hurricanes