A Beautiful Thursday & Fantastic Friday Before Weekend Warm Up
Yesterday's high at O'Hare of 78° marked the third straight day with highs in the 70s. The last time we had three days in a row as cool or cooler than that was in the middle of June. It's been nearly two months since it has been this cool. It's also only the second time this summer we've had three straight days of 70s or cooler for highs.
We will be transitioning today and tomorrow from cooler than average weather to above average weather with higher heat and humidity arriving this weekend. That means a 2° to 3° bump in temperatures the next few days and a slow increase in humidity. Today's highs should top out right around 80° (3° below average) with middle 70s at the lakefront.
Dew points will continue to climb along with temperatures. It will only be slightly more humid Friday but by the weekend there will be a noticeable jump in humidity. Sunday's dew points should reach into the lower to middle 70s. In other words, it will be more muggy this weekend as dew points approach oppressive levels.
While there will be a chance for a isolated shower or thunderstorm Saturday and Sunday the next several days should be mainly dry. The next highest threat of showers and thunderstorms (even though not reflected in this meteogram) will come Monday. Even then it is only about a 30% chance. Our best chance overall comes next Thursday.
A few weeks ago it appeared the middle of August might turn a bit cooler than average but the longer range forecasts continue to dash those hopes. The 6-10 and 8-14 day temperature probability forecasts once again have us outlooked for above average temperatures overall (along with most of the country) for the middle of the month and just beyond.
Here is my 7 day forecast: Today: Partly to mostly sunny High: 80 (75 Lakefront)
Friday: Sunny skies Low: 62 High: 83 (78 Lakefront) Saturday: Partly/mostly sunny, isolated shower/t-storm possible Low: 67 High: 85 Sunday: Partly/mostly sunny, isolated shower/t-storm possible Low: 70 High: 90 Monday: Partly cloudy, sct. showers/t-storms Low: 70 High: 89 Tuesday: Partly cloudy, sct. showers/t-storms Low: 68 High: 85 (80 Lakefront)
Wednesday: Partly cloudy, sct. showers/t-storms Low: 67 High: 85 (80 Lakefront)