Hotter and more humid weather is on tap today, with highs in the 80s in eastern upper Michigan, and near 90 to the mid 90s in northern lower. Heat indices in northern lower Michigan will be in the lower to middle 90s this afternoon. Take it easy if you are outdoors, and drink plenty of water. A stray shower may be possible today in northeast lower and eastern upper Michigan, though most places will stay dry. Much better chances for showers and storms arrive tonight, and some of that will linger into Sunday. The wettest weather Sunday will be in north central and northeast lower Michigan. And Sunday will not be as warm as today. We dry out Sunday night into Monday, with seasonable temperatures.