We are heading into the last full week of summer, and this week will be a reminder that summer isn’t quite over yet. For much of the past month, temperatures have been on the cool side. Today, we hit 80 degrees for only the second time since August 20. The good news is we have several more 80 degree days in the forecast this week.
Mostly clear skies will continue overnight tonight and into Monday. Patchy fog will develop across parts of the Chippewa Valley late tonight. As a result, much of western Wisconsin is under a Dense Fog Advisory until 10 a.m. Monday.
Visibility less than 1/4 mile is likely in some places, especially in valleys and low-lying areas. Fog may linger into the morning commute, so use caution when driving.
Any fog that develops overnight will burn off by mid morning, leading to a gorgeous sunny day with highs in the mid 80s.
The warm, dry weather will give local rivers a much needed break before our next round of showers and storms. There is currently one flood warning in effect for the Trempealeau River at Dodge, which is expected to crest at minor flood stage early Monday.
Warmth will stay with us through midweek, but dry sunny days will not. Thunderstorm chances will begin to increase starting Tuesday. As of right now, there is only a slight chance of storms on Tuesday, but chances will increase for Wednesday.
After Wednesday, the best chance for storms will be next weekend, but there still will be at least a slight chance of storms through the rest of the extended forecast.
Another thing we haven’t had much of lately is humidity. Dew points will gradually increase over the course of the week, and by Friday, humidity will be in the oppressive category.