It's another warm day in Upper Michigan. This is the warmest point in the year according to climate records. The average is a high of 77 and a low of 55. More than half of July, so far, has been above average. Here are some numbers for you, courtesy of the National Weather Service:
So far this July (including Sunday) in Negaunee Township:
6 days with a high over 80
8 days above average temperatures
Warmest July days on record are both with highs of 99 degrees on July 19, 1977 and July 28, 1988
Sunday continues the warmth with highs mainly in the 80s, but 70s far west under thicker clouds and near Lake Michigan with the south wind. There is a slight chance for rain west all of Sunday, but any rain will be light.
Sunday night's lows will only fall into the low 60s with partly cloudy to mostly clear skies. This is good because we may see an aurora. Far western counties will see more clouds and continued chances for rain.
So what's the deal with the far western U.P.?
There is a weak and very slow-moving low pressure system tucked in between two areas of high pressure. Because it's moving so slowly, it may bring some clouds and light rain to the western U.P. for the next couple days while the rest of Upper Michigan remains dry (of rain, but not humidity). Any rain will be light, if there is any rain at all.
Monday will be warmer and humid with highs again in the 80s for most areas. Skies will be partly cloudy; lows will be mild in the mid 60s.
Tuesday will be hot, humid, and the warmest day of the week. Highs will be well into the 80s with a strong south wind ahead of the next low pressure system. Skies will be partly cloudy with a chance for a light rain shower.
Wednesday is a turning point. There is still some uncertainty, but it appears that a low pressure system will bring some thunderstorms to the U.P. It will be warm but closer to average temperatures and the start of a cooling trend. It will again be humid.
The second half of the week should be cooler in the 70s.